Working through coverage on node builder.

datamodel/high/base/schema_proxy_test.go

@@ -0,0 +1,55 @@
+// Copyright 2023 Princess B33f Heavy Industries / Dave Shanley
+// SPDX-License-Identifier: MIT
+
+package base
+
+import (
+    "github.com/pb33f/libopenapi/datamodel/low"
+    lowbase "github.com/pb33f/libopenapi/datamodel/low/base"
+    "github.com/pb33f/libopenapi/index"
+    "github.com/stretchr/testify/assert"
+    "gopkg.in/yaml.v3"
+    "strings"
+    "testing"
+)
+
+func TestSchemaProxy_MarshalYAML(t *testing.T) {
+    const ymlComponents = `components:
+    schemas:
+     rice:
+       type: string
+     nice:
+       properties:
+         rice:
+           $ref: '#/components/schemas/rice'
+     ice:
+       properties:
+         rice:
+           $ref: '#/components/schemas/rice'`
+
+    idx := func() *index.SpecIndex {
+        var idxNode yaml.Node
+        err := yaml.Unmarshal([]byte(ymlComponents), &idxNode)
+        assert.NoError(t, err)
+        return index.NewSpecIndex(&idxNode)
+    }()
+
+    const ref = "#/components/schemas/nice"
+    const ymlSchema = `$ref: '` + ref + `'`
+    var node yaml.Node
+    _ = yaml.Unmarshal([]byte(ymlSchema), &node)
+
+    lowProxy := new(lowbase.SchemaProxy)
+    err := lowProxy.Build(node.Content[0], idx)
+    assert.NoError(t, err)
+
+    lowRef := low.NodeReference[*lowbase.SchemaProxy]{
+        Value: lowProxy,
+    }
+
+    sp := NewSchemaProxy(&lowRef)
+
+    rend, _ := sp.Render()
+    assert.Equal(t, "$ref: '#/components/schemas/nice'", strings.TrimSpace(string(rend)))
+
+}