libopenapi/datamodel/low/extraction_functions_test.go

// Copyright 2022-2023 Princess B33f Heavy Industries / Dave Shanley
// SPDX-License-Identifier: MIT

package low

import (
	"context"
	"crypto/sha256"
	"fmt"
	"net/url"
	"os"
	"path/filepath"
	"runtime"
	"strings"
	"testing"

	"golang.org/x/sync/syncmap"
	"gopkg.in/yaml.v3"

	"github.com/pb33f/libopenapi/index"
	"github.com/pb33f/libopenapi/orderedmap"
	"github.com/pb33f/libopenapi/utils"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestFindItemInOrderedMap(t *testing.T) {
	v := orderedmap.New[KeyReference[string], ValueReference[string]]()
	v.Set(KeyReference[string]{
		Value: "pizza",
	}, ValueReference[string]{
		Value: "pie",
	})
	assert.Equal(t, "pie", FindItemInOrderedMap("pizza", v).Value)
}

func TestFindItemInOrderedMap_WrongCase(t *testing.T) {
	v := orderedmap.New[KeyReference[string], ValueReference[string]]()
	v.Set(KeyReference[string]{
		Value: "pizza",
	}, ValueReference[string]{
		Value: "pie",
	})
	assert.Equal(t, "pie", FindItemInOrderedMap("PIZZA", v).Value)
}

func TestFindItemInOrderedMap_Error(t *testing.T) {
	v := orderedmap.New[KeyReference[string], ValueReference[string]]()
	v.Set(KeyReference[string]{
		Value: "pizza",
	}, ValueReference[string]{
		Value: "pie",
	})
	assert.Nil(t, FindItemInOrderedMap("nuggets", v))
}

func TestLocateRefNode(t *testing.T) {
	yml := `components:
  schemas:
    cake:
      description: hello`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `$ref: '#/components/schemas/cake'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	located, _, _ := LocateRefNode(cNode.Content[0], idx)
	assert.NotNil(t, located)
}

func TestLocateRefNode_BadNode(t *testing.T) {
	yml := `components:
  schemas:
    cake:
      description: hello`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `yes: mate` // useless.

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	located, _, err := LocateRefNode(cNode.Content[0], idx)

	// should both be empty.
	assert.Nil(t, located)
	assert.Nil(t, err)
}

func TestLocateRefNode_Path(t *testing.T) {
	yml := `paths:
  /burger/time:
    description: hello`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `$ref: '#/paths/~1burger~1time'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	located, _, _ := LocateRefNode(cNode.Content[0], idx)
	assert.NotNil(t, located)
}

func TestLocateRefNode_Path_NotFound(t *testing.T) {
	yml := `paths:
  /burger/time:
    description: hello`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `$ref: '#/paths/~1burger~1time-somethingsomethingdarkside-somethingsomethingcomplete'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	located, _, err := LocateRefNode(cNode.Content[0], idx)
	assert.Nil(t, located)
	assert.Error(t, err)
}

type pizza struct {
	Description NodeReference[string]
}

func (p *pizza) Build(_ context.Context, _, _ *yaml.Node, _ *index.SpecIndex) error {
	return nil
}

func TestExtractObject(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: hello`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `tags:
  description: hello pizza`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	tag, err := ExtractObject[*pizza](context.Background(), "tags", &cNode, idx)
	assert.NoError(t, err)
	assert.NotNil(t, tag)
	assert.Equal(t, "hello pizza", tag.Value.Description.Value)
}

func TestExtractObject_Ref(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: hello pizza`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `tags:
  $ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	tag, err := ExtractObject[*pizza](context.Background(), "tags", &cNode, idx)
	assert.NoError(t, err)
	assert.NotNil(t, tag)
	assert.Equal(t, "hello pizza", tag.Value.Description.Value)
}

func TestExtractObject_DoubleRef(t *testing.T) {
	yml := `components:
  schemas:
    cake:
      description: cake time!
    pizza:
      $ref: '#/components/schemas/cake'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `tags:
  $ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	tag, err := ExtractObject[*pizza](context.Background(), "tags", &cNode, idx)
	assert.NoError(t, err)
	assert.NotNil(t, tag)
	assert.Equal(t, "cake time!", tag.Value.Description.Value)
}

func TestExtractObject_DoubleRef_Circular(t *testing.T) {
	yml := `components:
  schemas:
    loopy:
      $ref: '#/components/schemas/cake'
    cake:
      $ref: '#/components/schemas/loopy'
    pizza:
      $ref: '#/components/schemas/cake'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	// circular references are detected by the resolver, so lets run it!
	resolv := index.NewResolver(idx)
	assert.Len(t, resolv.CheckForCircularReferences(), 1)

	yml = `tags:
  $ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	_, err := ExtractObject[*pizza](context.Background(), "tags", &cNode, idx)
	assert.Error(t, err)
	assert.Equal(t, "cake -> loopy -> cake", idx.GetCircularReferences()[0].GenerateJourneyPath())
}

func TestExtractObject_DoubleRef_Circular_Fail(t *testing.T) {
	yml := `components:
  schemas:
    loopy:
      $ref: '#/components/schemas/cake'
    cake:
      $ref: '#/components/schemas/loopy'
    pizza:
      $ref: '#/components/schemas/cake'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	// circular references are detected by the resolver, so lets run it!
	resolv := index.NewResolver(idx)
	assert.Len(t, resolv.CheckForCircularReferences(), 1)

	yml = `tags:
  $ref: #BORK`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	_, err := ExtractObject[*pizza](context.Background(), "tags", &cNode, idx)
	assert.Error(t, err)
}

func TestExtractObject_DoubleRef_Circular_Direct(t *testing.T) {
	yml := `components:
  schemas:
    loopy:
      $ref: '#/components/schemas/cake'
    cake:
      $ref: '#/components/schemas/loopy'
    pizza:
      $ref: '#/components/schemas/cake'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	// circular references are detected by the resolver, so lets run it!
	resolv := index.NewResolver(idx)
	assert.Len(t, resolv.CheckForCircularReferences(), 1)

	yml = `$ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	_, err := ExtractObject[*pizza](context.Background(), "tags", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Equal(t, "cake -> loopy -> cake", idx.GetCircularReferences()[0].GenerateJourneyPath())
}

func TestExtractObject_DoubleRef_Circular_Direct_Fail(t *testing.T) {
	yml := `components:
  schemas:
    loopy:
      $ref: '#/components/schemas/cake'
    cake:
      $ref: '#/components/schemas/loopy'
    pizza:
      $ref: '#/components/schemas/cake'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	// circular references are detected by the resolver, so lets run it!
	resolv := index.NewResolver(idx)
	assert.Len(t, resolv.CheckForCircularReferences(), 1)

	yml = `$ref: '#/components/schemas/why-did-westworld-have-to-end-so-poorly-ffs'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	_, err := ExtractObject[*pizza](context.Background(), "tags", cNode.Content[0], idx)
	assert.Error(t, err)
}

type test_borked struct {
	DontWork int
}

func (t test_borked) Build(_ context.Context, _, root *yaml.Node, idx *index.SpecIndex) error {
	return fmt.Errorf("I am always going to fail, every thing")
}

type test_noGood struct {
	DontWork int
}

func (t *test_noGood) Build(_ context.Context, _, root *yaml.Node, idx *index.SpecIndex) error {
	return fmt.Errorf("I am always going to fail a core build")
}

type test_almostGood struct {
	AlmostWork NodeReference[int]
}

func (t *test_almostGood) Build(_ context.Context, _, root *yaml.Node, idx *index.SpecIndex) error {
	return fmt.Errorf("I am always going to fail a build out")
}

type test_Good struct {
	AlmostWork NodeReference[int]
}

func (t *test_Good) Build(_ context.Context, _, root *yaml.Node, idx *index.SpecIndex) error {
	return nil
}

func TestExtractObject_BadLowLevelModel(t *testing.T) {
	yml := `components:
  schemas:
   hey:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `thing:
  dontWork: 123`
	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	_, err := ExtractObject[*test_noGood](context.Background(), "thing", &cNode, idx)
	assert.Error(t, err)
}

func TestExtractObject_BadBuild(t *testing.T) {
	yml := `components:
  schemas:
   hey:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `thing:
  dontWork: 123`
	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	_, err := ExtractObject[*test_almostGood](context.Background(), "thing", &cNode, idx)
	assert.Error(t, err)
}

func TestExtractObject_BadLabel(t *testing.T) {
	yml := `components:
  schemas:
   hey:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `thing:
  dontWork: 123`
	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	res, err := ExtractObject[*test_almostGood](context.Background(), "ding", &cNode, idx)
	assert.Nil(t, res.Value)
	assert.NoError(t, err)
}

func TestExtractObject_PathIsCircular(t *testing.T) {
	// first we need an index.
	yml := `paths:
  '/something/here':
    post:
      $ref: '#/paths/~1something~1there/post'
  '/something/there':
    post:
      $ref: '#/paths/~1something~1here/post'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `thing:
  $ref: '#/paths/~1something~1here/post'`

	var rootNode yaml.Node
	mErr = yaml.Unmarshal([]byte(yml), &rootNode)
	assert.NoError(t, mErr)

	res, err := ExtractObject[*test_Good](context.Background(), "thing", &rootNode, idx)
	assert.NotNil(t, res.Value)
	assert.Error(t, err) // circular error would have been thrown.
}

func TestExtractObject_PathIsCircular_IgnoreErrors(t *testing.T) {
	// first we need an index.
	yml := `paths:
  '/something/here':
    post:
      $ref: '#/paths/~1something~1there/post'
  '/something/there':
    post:
      $ref: '#/paths/~1something~1here/post'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	// disable circular ref checking.
	idx.SetAllowCircularReferenceResolving(true)

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `thing:
  $ref: '#/paths/~1something~1here/post'`

	var rootNode yaml.Node
	mErr = yaml.Unmarshal([]byte(yml), &rootNode)
	assert.NoError(t, mErr)

	res, err := ExtractObject[*test_Good](context.Background(), "thing", &rootNode, idx)
	assert.NotNil(t, res.Value)
	assert.NoError(t, err) // circular error would have been thrown, but we're ignoring them.
}

func TestExtractObjectRaw(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: hello`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `description: hello pizza`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	tag, err, _, _ := ExtractObjectRaw[*pizza](context.Background(), nil, cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.NotNil(t, tag)
	assert.Equal(t, "hello pizza", tag.Description.Value)
}

func TestExtractObjectRaw_With_Ref(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: hello`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `$ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	tag, err, isRef, rv := ExtractObjectRaw[*pizza](context.Background(), nil, cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.NotNil(t, tag)
	assert.Equal(t, "hello", tag.Description.Value)
	assert.True(t, isRef)
	assert.Equal(t, "#/components/schemas/pizza", rv)
}

func TestExtractObjectRaw_Ref_Circular(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      $ref: '#/components/schemas/pie'
    pie:
      $ref: '#/components/schemas/pizza'`
	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `$ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	tag, err, _, _ := ExtractObjectRaw[*pizza](context.Background(), nil, cNode.Content[0], idx)
	assert.Error(t, err)
	assert.NotNil(t, tag)
}

func TestExtractObjectRaw_RefBroken(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: hey!`
	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `$ref: '#/components/schemas/lost-in-space'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	tag, err, _, _ := ExtractObjectRaw[*pizza](context.Background(), nil, cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Nil(t, tag)
}

func TestExtractObjectRaw_Ref_NonBuildable(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: hey!`
	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `dontWork: 1'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	_, err, _, _ := ExtractObjectRaw[*test_noGood](context.Background(), nil, cNode.Content[0], idx)
	assert.Error(t, err)
}

func TestExtractObjectRaw_Ref_AlmostBuildable(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: hey!`
	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `almostWork: 1'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	_, err, _, _ := ExtractObjectRaw[*test_almostGood](context.Background(), nil, cNode.Content[0], idx)
	assert.Error(t, err)
}

func TestExtractArray(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: hello`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `things:
  - description: one
  - description: two
  - description: three`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	things, _, _, err := ExtractArray[*pizza](context.Background(), "things", cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.NotNil(t, things)
	assert.Equal(t, "one", things[0].Value.Description.Value)
	assert.Equal(t, "two", things[1].Value.Description.Value)
	assert.Equal(t, "three", things[2].Value.Description.Value)
}

func TestExtractArray_Ref(t *testing.T) {
	yml := `components:
  schemas:
    things:
      - description: one
      - description: two
      - description: three`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `$ref: '#/components/schemas/things'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	things, _, _, err := ExtractArray[*pizza](context.Background(), "things", cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.NotNil(t, things)
	assert.Equal(t, "one", things[0].Value.Description.Value)
	assert.Equal(t, "two", things[1].Value.Description.Value)
	assert.Equal(t, "three", things[2].Value.Description.Value)
}

func TestExtractArray_Ref_Unbuildable(t *testing.T) {
	yml := `components:
  schemas:
    things:
      - description: one
      - description: two
      - description: three`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `$ref: '#/components/schemas/things'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	things, _, _, err := ExtractArray[*test_noGood](context.Background(), "", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 0)
}

func TestExtractArray_Ref_Circular(t *testing.T) {
	yml := `components:
  schemas:
    thongs:
      $ref: '#/components/schemas/things'
    things:
      $ref: '#/components/schemas/thongs'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `$ref: '#/components/schemas/things'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	things, _, _, err := ExtractArray[*test_Good](context.Background(), "", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 2)
}

func TestExtractArray_Ref_Bad(t *testing.T) {
	yml := `components:
  schemas:
    thongs:
      $ref: '#/components/schemas/things'
    things:
      $ref: '#/components/schemas/thongs'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `$ref: '#/components/schemas/let-us-eat-cake'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	things, _, _, err := ExtractArray[*test_Good](context.Background(), "", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 0)
}

func TestExtractArray_Ref_Nested(t *testing.T) {
	yml := `components:
  schemas:
    thongs:
      $ref: '#/components/schemas/things'
    things:
      $ref: '#/components/schemas/thongs'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `limes:
  $ref: '#/components/schemas/let-us-eat-cake'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	things, _, _, err := ExtractArray[*test_Good](context.Background(), "limes", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 0)
}

func TestExtractArray_Ref_Nested_Circular(t *testing.T) {
	yml := `components:
  schemas:
    thongs:
      $ref: '#/components/schemas/things'
    things:
      $ref: '#/components/schemas/thongs'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `limes:
  - $ref: '#/components/schemas/things'`

	var cNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &cNode)

	things, _, _, err := ExtractArray[*test_Good](context.Background(), "limes", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 1)
}

func TestExtractArray_Ref_Nested_BadRef(t *testing.T) {
	yml := `components:
  schemas:
    thongs:
      allOf:
        - $ref: '#/components/schemas/things'
    things:
      oneOf:
        - type: string`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `limes:
  - $ref: '#/components/schemas/thangs'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)
	things, _, _, err := ExtractArray[*test_Good](context.Background(), "limes", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 0)
}

func TestExtractArray_Ref_Nested_CircularFlat(t *testing.T) {
	yml := `components:
  schemas:
    thongs:
      $ref: '#/components/schemas/things'
    things:
      $ref: '#/components/schemas/thongs'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `limes:
  $ref: '#/components/schemas/things'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)
	things, _, _, err := ExtractArray[*test_Good](context.Background(), "limes", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 2)
}

func TestExtractArray_BadBuild(t *testing.T) {
	yml := `components:
  schemas:
    thongs:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `limes:
  - dontWork: 1`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)
	things, _, _, err := ExtractArray[*test_noGood](context.Background(), "limes", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 0)
}

func TestExtractArray_BadRefPropsTupe(t *testing.T) {
	yml := `components:
  parameters:
    cakes:
      limes: cake`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `limes: 
  $ref: '#/components/parameters/cakes'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)
	things, _, _, err := ExtractArray[*test_noGood](context.Background(), "limes", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Len(t, things, 0)
}

func TestExtractMapFlatNoLookup(t *testing.T) {
	yml := `components:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  description: two`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookup[*test_Good](context.Background(), cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))
}

func TestExtractMap_NoLookupWithExtensions(t *testing.T) {
	yml := `components:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  x-choo: choo`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookupExtensions[*test_Good](context.Background(), cNode.Content[0], idx, true)
	assert.NoError(t, err)
	assert.Equal(t, 2, orderedmap.Len(things))

	for pair := orderedmap.First(things); pair != nil; pair = pair.Next() {
		if pair.Key().Value == "x-hey" {
			continue
		}
		assert.Equal(t, "one", pair.Key().Value)
		assert.Len(t, pair.Value().ValueNode.Content, 2)
	}
}

func TestExtractMap_NoLookupWithExtensions_UsingMerge(t *testing.T) {
	yml := `components:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-yeah: &yeah
  night: fun
x-hey: you
one:
  x-choo: choo
<<: *yeah`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookupExtensions[*test_Good](context.Background(), cNode.Content[0], idx, true)
	assert.NoError(t, err)
	assert.Equal(t, 4, orderedmap.Len(things))
}

func TestExtractMap_NoLookupWithoutExtensions(t *testing.T) {
	yml := `components:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  x-choo: choo`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookupExtensions[*test_Good](context.Background(), cNode.Content[0], idx, false)
	assert.NoError(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))

	for pair := orderedmap.First(things); pair != nil; pair = pair.Next() {
		assert.Equal(t, "one", pair.Key().Value)
	}
}

func TestExtractMap_WithExtensions(t *testing.T) {
	yml := `components:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  x-choo: choo`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMapExtensions[*test_Good](context.Background(), "one", cNode.Content[0], idx, true)
	assert.NoError(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))
}

func TestExtractMap_WithoutExtensions(t *testing.T) {
	yml := `components:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  x-choo: choo`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMapExtensions[*test_Good](context.Background(), "one", cNode.Content[0], idx, false)
	assert.NoError(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlatNoLookup_Ref(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: tasty!`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  $ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookup[*test_Good](context.Background(), cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))
}

func TestExtractMapFlatNoLookup_Ref_Bad(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: tasty!`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  $ref: '#/components/schemas/no-where-out-there'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookup[*test_Good](context.Background(), cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlatNoLookup_Ref_Circular(t *testing.T) {
	yml := `components:
  schemas:
    thongs:
      $ref: '#/components/schemas/things'
    things:
      $ref: '#/components/schemas/thongs'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `x-hey: you
one:
  $ref: '#/components/schemas/things'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookup[*test_Good](context.Background(), cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))
}

func TestExtractMapFlatNoLookup_Ref_BadBuild(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      dontWork: 1`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
hello:
  $ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookup[*test_noGood](context.Background(), cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlatNoLookup_Ref_AlmostBuild(t *testing.T) {
	yml := `components:
  schemas:
    pizza:
      description: tasty!`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  $ref: '#/components/schemas/pizza'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, err := ExtractMapNoLookup[*test_almostGood](context.Background(), cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlat(t *testing.T) {
	yml := `components:`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  description: two`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "one", cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))
}

func TestExtractMapFlat_Ref(t *testing.T) {
	yml := `components:
  schemas:
    stank:
      things:
        almostWork: 99`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `x-hey: you
one:
  $ref: '#/components/schemas/stank'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "one", cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))

	for pair := orderedmap.First(things); pair != nil; pair = pair.Next() {
		assert.Equal(t, 99, pair.Value().Value.AlmostWork.Value)
	}
}

func TestExtractMapFlat_DoubleRef(t *testing.T) {
	yml := `components:
  schemas:
    stank:
      almostWork: 99`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `one:
  nice:
    $ref: '#/components/schemas/stank'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "one", cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))

	for pair := orderedmap.First(things); pair != nil; pair = pair.Next() {
		assert.Equal(t, 99, pair.Value().Value.AlmostWork.Value)
	}
}

func TestExtractMapFlat_DoubleRef_Error(t *testing.T) {
	yml := `components:
  schemas:
    stank:
      things:
        almostWork: 99`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `one:
  nice:
    $ref: '#/components/schemas/stank'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_almostGood](context.Background(), "one", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlat_DoubleRef_Error_NotFound(t *testing.T) {
	yml := `components:
  schemas:
    stank:
      things:
        almostWork: 99`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `one:
  nice:
    $ref: '#/components/schemas/stanky-panky'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_almostGood](context.Background(), "one", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlat_DoubleRef_Circles(t *testing.T) {
	yml := `components:
  schemas:
    stonk:
      $ref: '#/components/schemas/stank'
    stank:
      $ref: '#/components/schemas/stonk'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `one:
  nice:
    $ref: '#/components/schemas/stank'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "one", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))
}

func TestExtractMapFlat_Ref_Error(t *testing.T) {
	yml := `components:
  schemas:
    stank:
      x-smells: bad
      things:
        almostWork: 99`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `one:
  $ref: '#/components/schemas/stank'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_almostGood](context.Background(), "one", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlat_Ref_Circ_Error(t *testing.T) {
	yml := `components:
  schemas:
    stink:
      $ref: '#/components/schemas/stank'
    stank:
      $ref: '#/components/schemas/stink'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `$ref: '#/components/schemas/stank'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "one", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))
}

func TestExtractMapFlat_Ref_Nested_Circ_Error(t *testing.T) {
	yml := `components:
  schemas:
    stink:
      $ref: '#/components/schemas/stank'
    stank:
      $ref: '#/components/schemas/stink'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `one:
  $ref: '#/components/schemas/stank'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "one", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Equal(t, 1, orderedmap.Len(things))
}

func TestExtractMapFlat_Ref_Nested_Error(t *testing.T) {
	yml := `components:
  schemas:
    stink:
      $ref: '#/components/schemas/stank'
    stank:
      $ref: '#/components/schemas/none'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `one:
  $ref: '#/components/schemas/somewhere-else'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "one", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlat_BadKey_Ref_Nested_Error(t *testing.T) {
	yml := `components:
  schemas:
    stink:
      $ref: '#/components/schemas/stank'
    stank:
      $ref: '#/components/schemas/none'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `one:
  $ref: '#/components/schemas/somewhere-else'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "not-even-there", cNode.Content[0], idx)
	assert.NoError(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractMapFlat_Ref_Bad(t *testing.T) {
	yml := `components:
  schemas:
    stink:
      $ref: '#/components/schemas/stank'
    stank:
      $ref: '#/components/schemas/none'`

	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	resolve := index.NewResolver(idx)
	errs := resolve.CheckForCircularReferences()
	assert.Len(t, errs, 1)

	yml = `$ref: '#/components/schemas/somewhere-else'`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)

	things, _, _, err := ExtractMap[*test_Good](context.Background(), "one", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Zero(t, orderedmap.Len(things))
}

func TestExtractExtensions(t *testing.T) {
	yml := `x-bing: ding
x-bong: 1
x-ling: true
x-long: 0.99
x-fish:
  woo: yeah
x-tacos: [1,2,3]`

	var idxNode yaml.Node
	_ = yaml.Unmarshal([]byte(yml), &idxNode)

	r := ExtractExtensions(idxNode.Content[0])
	assert.Equal(t, 6, orderedmap.Len(r))
	for pair := orderedmap.First(r); pair != nil; pair = pair.Next() {
		var v any
		_ = pair.Value().Value.Decode(&v)

		switch pair.Key().Value {
		case "x-bing":
			assert.Equal(t, "ding", v)
		case "x-bong":
			assert.Equal(t, 1, v)
		case "x-ling":
			assert.Equal(t, true, v)
		case "x-long":
			assert.Equal(t, 0.99, v)
		case "x-fish":
			var m map[string]any
			err := pair.Value().Value.Decode(&m)
			require.NoError(t, err)
			assert.Equal(t, "yeah", m["woo"])
		case "x-tacos":
			assert.Len(t, v, 3)
		}
	}
}

type test_fresh struct {
	val   string
	thang *bool
}

func (f test_fresh) Hash() [32]byte {
	var data []string
	if f.val != "" {
		data = append(data, f.val)
	}
	if f.thang != nil {
		data = append(data, fmt.Sprintf("%v", *f.thang))
	}
	return sha256.Sum256([]byte(strings.Join(data, "|")))
}

func TestAreEqual(t *testing.T) {
	var hey *test_fresh

	assert.True(t, AreEqual(test_fresh{val: "hello"}, test_fresh{val: "hello"}))
	assert.True(t, AreEqual(&test_fresh{val: "hello"}, &test_fresh{val: "hello"}))
	assert.False(t, AreEqual(test_fresh{val: "hello"}, test_fresh{val: "goodbye"}))
	assert.False(t, AreEqual(&test_fresh{val: "hello"}, &test_fresh{val: "goodbye"}))
	assert.False(t, AreEqual(nil, &test_fresh{val: "goodbye"}))
	assert.False(t, AreEqual(&test_fresh{val: "hello"}, hey))
	assert.False(t, AreEqual(nil, nil))
}

func TestGenerateHashString(t *testing.T) {
	assert.Equal(t, "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
		GenerateHashString(test_fresh{val: "hello"}))

	assert.Equal(t, "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
		GenerateHashString("hello"))

	assert.Equal(t, "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
		GenerateHashString(""))

	assert.Equal(t, "",
		GenerateHashString(nil))

	assert.Equal(t, "f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2", GenerateHashString(utils.CreateStringNode("test")))
}

func TestGenerateHashString_Pointer(t *testing.T) {
	val := true
	assert.Equal(t, "b5bea41b6c623f7c09f1bf24dcae58ebab3c0cdd90ad966bc43a45b44867e12b",
		GenerateHashString(test_fresh{thang: &val}))

	assert.Equal(t, "b5bea41b6c623f7c09f1bf24dcae58ebab3c0cdd90ad966bc43a45b44867e12b",
		GenerateHashString(&val))
}

func TestSetReference(t *testing.T) {
	type testObj struct {
		*Reference
	}

	n := testObj{Reference: &Reference{}}
	SetReference(&n, "#/pigeon/street", nil)

	assert.Equal(t, "#/pigeon/street", n.GetReference())
}

func TestSetReference_nil(t *testing.T) {
	type testObj struct {
		*Reference
	}

	n := testObj{Reference: &Reference{}}
	SetReference(nil, "#/pigeon/street", nil)
	assert.NotEqual(t, "#/pigeon/street", n.GetReference())
}

func TestLocateRefNode_CurrentPathKey_HttpLink(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "http://cakes.com/nice#/components/schemas/thing",
			},
		},
	}

	ctx := context.WithValue(context.Background(), index.CurrentPathKey, "http://cakes.com#/components/schemas/thing")

	idx := index.NewSpecIndexWithConfig(&no, index.CreateClosedAPIIndexConfig())
	n, i, e, c := LocateRefNodeWithContext(ctx, &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_CurrentPathKey_HttpLink_Local(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: ".#/components/schemas/thing",
			},
		},
	}

	ctx := context.WithValue(context.Background(), index.CurrentPathKey, "http://cakes.com/nice/rice#/components/schemas/thing")

	idx := index.NewSpecIndexWithConfig(&no, index.CreateClosedAPIIndexConfig())
	n, i, e, c := LocateRefNodeWithContext(ctx, &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_CurrentPathKey_HttpLink_RemoteCtx(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "#/components/schemas/thing",
			},
		},
	}

	ctx := context.WithValue(context.Background(), index.CurrentPathKey, "https://cakes.com#/components/schemas/thing")
	idx := index.NewSpecIndexWithConfig(&no, index.CreateClosedAPIIndexConfig())
	n, i, e, c := LocateRefNodeWithContext(ctx, &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_CurrentPathKey_HttpLink_RemoteCtx_WithPath(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "#/components/schemas/thing",
			},
		},
	}

	ctx := context.WithValue(context.Background(), index.CurrentPathKey, "https://cakes.com/jazzzy/shoes#/components/schemas/thing")
	idx := index.NewSpecIndexWithConfig(&no, index.CreateClosedAPIIndexConfig())
	n, i, e, c := LocateRefNodeWithContext(ctx, &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_CurrentPathKey_Path_Link(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "yazzy.yaml#/components/schemas/thing",
			},
		},
	}

	ctx := context.WithValue(context.Background(), index.CurrentPathKey, "/jazzzy/shoes.yaml")
	idx := index.NewSpecIndexWithConfig(&no, index.CreateClosedAPIIndexConfig())
	n, i, e, c := LocateRefNodeWithContext(ctx, &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_CurrentPathKey_Path_URL(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "yazzy.yaml#/components/schemas/thing",
			},
		},
	}

	cf := index.CreateClosedAPIIndexConfig()
	u, _ := url.Parse("https://herbs-and-coffee-in-the-fall.com")
	cf.BaseURL = u
	idx := index.NewSpecIndexWithConfig(&no, cf)
	n, i, e, c := LocateRefNodeWithContext(context.Background(), &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_CurrentPathKey_DeeperPath_URL(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "slasshy/mazsshy/yazzy.yaml#/components/schemas/thing",
			},
		},
	}

	cf := index.CreateClosedAPIIndexConfig()
	u, _ := url.Parse("https://herbs-and-coffee-in-the-fall.com/pizza/burgers")
	cf.BaseURL = u
	idx := index.NewSpecIndexWithConfig(&no, cf)
	n, i, e, c := LocateRefNodeWithContext(context.Background(), &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_NoExplode(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "components/schemas/thing.yaml",
			},
		},
	}

	cf := index.CreateClosedAPIIndexConfig()
	u, _ := url.Parse("http://smiledfdfdfdfds.com/bikes")
	cf.BaseURL = u
	idx := index.NewSpecIndexWithConfig(&no, cf)
	n, i, e, c := LocateRefNodeWithContext(context.Background(), &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_NoExplode_HTTP(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "components/schemas/thing.yaml",
			},
		},
	}

	cf := index.CreateClosedAPIIndexConfig()
	u, _ := url.Parse("http://smilfghfhfhfhfhes.com/bikes")
	cf.BaseURL = u
	idx := index.NewSpecIndexWithConfig(&no, cf)
	ctx := context.WithValue(context.Background(), index.CurrentPathKey, "http://minty-fresh-shoes.com/nice/no.yaml")
	n, i, e, c := LocateRefNodeWithContext(ctx, &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_NoExplode_NoSpecPath(t *testing.T) {
	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "components/schemas/thing.yaml",
			},
		},
	}

	cf := index.CreateClosedAPIIndexConfig()
	u, _ := url.Parse("http://smilfghfhfhfhfhes.com/bikes")
	cf.BaseURL = u
	idx := index.NewSpecIndexWithConfig(&no, cf)
	ctx := context.WithValue(context.Background(), index.CurrentPathKey, "no.yaml")
	n, i, e, c := LocateRefNodeWithContext(ctx, &no, idx)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.NotNil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefNode_DoARealLookup(t *testing.T) {

	lookup := "/root.yaml#/components/schemas/Burger"
	if runtime.GOOS == "windows" {
		lookup = "C:\\root.yaml#/components/schemas/Burger"
	}

	no := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: lookup,
			},
		},
	}

	b, err := os.ReadFile("../../test_specs/burgershop.openapi.yaml")
	if err != nil {
		t.Fatal(err)
	}
	var rootNode yaml.Node
	_ = yaml.Unmarshal(b, &rootNode)

	cf := index.CreateClosedAPIIndexConfig()
	u, _ := url.Parse("http://smilfghfhfhfhfhes.com/bikes")
	cf.BaseURL = u
	idx := index.NewSpecIndexWithConfig(&rootNode, cf)

	// fake cache to a lookup for a file that does not exist will work.
	fakeCache := new(syncmap.Map)
	fakeCache.Store(lookup, &index.Reference{Node: &no, Index: idx})
	idx.SetCache(fakeCache)

	ctx := context.WithValue(context.Background(), index.CurrentPathKey, lookup)
	n, i, e, c := LocateRefNodeWithContext(ctx, &no, idx)
	assert.NotNil(t, n)
	assert.NotNil(t, i)
	assert.Nil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefEndNoRef_NoName(t *testing.T) {
	r := &yaml.Node{Content: []*yaml.Node{{Kind: yaml.ScalarNode, Value: "$ref"}, {Kind: yaml.ScalarNode, Value: ""}}}
	n, i, e, c := LocateRefEnd(nil, r, nil, 0)
	assert.Nil(t, n)
	assert.Nil(t, i)
	assert.Error(t, e)
	assert.Nil(t, c)
}

func TestLocateRefEndNoRef(t *testing.T) {
	r := &yaml.Node{Content: []*yaml.Node{{Kind: yaml.ScalarNode, Value: "$ref"}, {Kind: yaml.ScalarNode, Value: "cake"}}}
	n, i, e, c := LocateRefEnd(context.Background(), r, index.NewSpecIndexWithConfig(r, index.CreateClosedAPIIndexConfig()), 0)
	assert.Nil(t, n)
	assert.NotNil(t, i)
	assert.Error(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefEnd_TooDeep(t *testing.T) {
	r := &yaml.Node{Content: []*yaml.Node{{Kind: yaml.ScalarNode, Value: "$ref"}, {Kind: yaml.ScalarNode, Value: ""}}}
	n, i, e, c := LocateRefEnd(nil, r, nil, 100)
	assert.Nil(t, n)
	assert.Nil(t, i)
	assert.Error(t, e)
	assert.Nil(t, c)
}

func TestLocateRefEnd_Loop(t *testing.T) {
	yml, _ := os.ReadFile("../../test_specs/first.yaml")
	var bsn yaml.Node
	_ = yaml.Unmarshal(yml, &bsn)

	cf := index.CreateOpenAPIIndexConfig()
	cf.BasePath = "../../test_specs"

	localFSConfig := &index.LocalFSConfig{
		BaseDirectory: cf.BasePath,
		FileFilters:   []string{"first.yaml", "second.yaml", "third.yaml", "fourth.yaml"},
		DirFS:         os.DirFS(cf.BasePath),
	}
	localFs, _ := index.NewLocalFSWithConfig(localFSConfig)
	rolo := index.NewRolodex(cf)
	rolo.AddLocalFS(cf.BasePath, localFs)
	rolo.SetRootNode(&bsn)
	rolo.IndexTheRolodex()

	idx := rolo.GetRootIndex()
	loop := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "third.yaml#/properties/property/properties/statistics",
			},
		},
	}

	wd, _ := os.Getwd()
	cp, _ := filepath.Abs(filepath.Join(wd, "../../test_specs/first.yaml"))
	ctx := context.WithValue(context.Background(), index.CurrentPathKey, cp)
	n, i, e, c := LocateRefEnd(ctx, &loop, idx, 0)
	assert.NotNil(t, n)
	assert.NotNil(t, i)
	assert.Nil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefEnd_Loop_WithResolve(t *testing.T) {
	yml, _ := os.ReadFile("../../test_specs/first.yaml")
	var bsn yaml.Node
	_ = yaml.Unmarshal(yml, &bsn)

	cf := index.CreateOpenAPIIndexConfig()
	cf.BasePath = "../../test_specs"

	localFSConfig := &index.LocalFSConfig{
		BaseDirectory: cf.BasePath,
		FileFilters:   []string{"first.yaml", "second.yaml", "third.yaml", "fourth.yaml"},
		DirFS:         os.DirFS(cf.BasePath),
	}
	localFs, _ := index.NewLocalFSWithConfig(localFSConfig)
	rolo := index.NewRolodex(cf)
	rolo.AddLocalFS(cf.BasePath, localFs)
	rolo.SetRootNode(&bsn)
	rolo.IndexTheRolodex()
	rolo.Resolve()
	idx := rolo.GetRootIndex()
	loop := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "third.yaml#/properties/property/properties/statistics",
			},
		},
	}

	wd, _ := os.Getwd()
	cp, _ := filepath.Abs(filepath.Join(wd, "../../test_specs/first.yaml"))
	ctx := context.WithValue(context.Background(), index.CurrentPathKey, cp)
	n, i, e, c := LocateRefEnd(ctx, &loop, idx, 0)
	assert.NotNil(t, n)
	assert.NotNil(t, i)
	assert.Nil(t, e)
	assert.NotNil(t, c)
}

func TestLocateRefEnd_Empty(t *testing.T) {
	yml, _ := os.ReadFile("../../test_specs/first.yaml")
	var bsn yaml.Node
	_ = yaml.Unmarshal(yml, &bsn)

	cf := index.CreateOpenAPIIndexConfig()
	cf.BasePath = "../../test_specs"

	localFSConfig := &index.LocalFSConfig{
		BaseDirectory: cf.BasePath,
		FileFilters:   []string{"first.yaml", "second.yaml", "third.yaml", "fourth.yaml"},
		DirFS:         os.DirFS(cf.BasePath),
	}
	localFs, _ := index.NewLocalFSWithConfig(localFSConfig)
	rolo := index.NewRolodex(cf)
	rolo.AddLocalFS(cf.BasePath, localFs)
	rolo.SetRootNode(&bsn)
	rolo.IndexTheRolodex()
	idx := rolo.GetRootIndex()
	loop := yaml.Node{
		Kind: yaml.MappingNode,
		Content: []*yaml.Node{
			{
				Kind:  yaml.ScalarNode,
				Value: "$ref",
			},
			{
				Kind:  yaml.ScalarNode,
				Value: "",
			},
		},
	}

	wd, _ := os.Getwd()
	cp, _ := filepath.Abs(filepath.Join(wd, "../../test_specs/first.yaml"))
	ctx := context.WithValue(context.Background(), index.CurrentPathKey, cp)
	n, i, e, c := LocateRefEnd(ctx, &loop, idx, 0)
	assert.Nil(t, n)
	assert.Nil(t, i)
	assert.Error(t, e)
	assert.Equal(t, "reference at line 0, column 0 is empty, it cannot be resolved", e.Error())
	assert.NotNil(t, c)
}

func TestArray_NotRefNotArray(t *testing.T) {
	yml := ``
	var idxNode yaml.Node
	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
	assert.NoError(t, mErr)
	idx := index.NewSpecIndexWithConfig(&idxNode, index.CreateClosedAPIIndexConfig())

	yml = `limes: 
  not: array`

	var cNode yaml.Node
	e := yaml.Unmarshal([]byte(yml), &cNode)
	assert.NoError(t, e)
	things, _, _, err := ExtractArray[*test_noGood](context.Background(), "limes", cNode.Content[0], idx)
	assert.Error(t, err)
	assert.Equal(t, err.Error(), "array build failed, input is not an array, line 2, column 3")
	assert.Len(t, things, 0)
}

func TestHashExtensions(t *testing.T) {
	type args struct {
		ext *orderedmap.Map[KeyReference[string], ValueReference[*yaml.Node]]
	}
	tests := []struct {
		name string
		args args
		want []string
	}{
		{
			name: "empty",
			args: args{
				ext: orderedmap.New[KeyReference[string], ValueReference[*yaml.Node]](),
			},
			want: []string{},
		},
		{
			name: "hashes extensions",
			args: args{
				ext: orderedmap.ToOrderedMap(map[KeyReference[string]]ValueReference[*yaml.Node]{
					{Value: "x-burger"}: {
						Value: utils.CreateStringNode("yummy"),
					},
					{Value: "x-car"}: {
						Value: utils.CreateStringNode("ford"),
					},
				}),
			},
			want: []string{
				"x-burger-2a296977a4572521773eb7e7773cc054fae3e8589511ce9bf90cec7dd93d016a",
				"x-car-7d3aa6a5c79cdb0c2585daed714fa0936a18e6767b2dcc804992a90f6d0b8f5e",
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			hash := HashExtensions(tt.args.ext)
			assert.Equal(t, tt.want, hash)
		})
	}
}

func TestValueToString(t *testing.T) {
	type args struct {
		v any
	}
	tests := []struct {
		name string
		args args
		want string
	}{
		{
			name: "string",
			args: args{
				v: "hello",
			},
			want: "hello",
		},
		{
			name: "int",
			args: args{
				v: 1,
			},
			want: "1",
		},
		{
			name: "yaml.Node",
			args: args{
				v: utils.CreateStringNode("world"),
			},
			want: "world",
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := ValueToString(tt.args.v)
			assert.Equal(t, tt.want, strings.TrimSpace(got))
		})
	}
}