diff --git a/datamodel/low/3.0/create_document_test.go b/datamodel/low/3.0/create_document_test.go
index 18f60d4..a9f4a4f 100644
--- a/datamodel/low/3.0/create_document_test.go
+++ b/datamodel/low/3.0/create_document_test.go
@@ -316,9 +316,9 @@ func TestCreateDocument_Components_Schemas(t *testing.T) {
 	assert.NotNil(t, components)
 	assert.Len(t, components.Schemas.Value, 6)
 
-	burger := components.FindSchema("Burger")
-	assert.NotNil(t, burger.Value)
-	assert.Equal(t, "The tastiest food on the planet you would love to eat everyday", burger.Value.Schema().Description.Value)
+	burger := components.FindSchema("Burger").Value
+	assert.NotNil(t, burger)
+	assert.Equal(t, "The tastiest food on the planet you would love to eat everyday", burger.Schema().Description.Value)
 
 	er := components.FindSchema("Error")
 	assert.NotNil(t, er.Value)
diff --git a/datamodel/low/extraction_functions.go b/datamodel/low/extraction_functions.go
index a2819d1..02d4440 100644
--- a/datamodel/low/extraction_functions.go
+++ b/datamodel/low/extraction_functions.go
@@ -11,7 +11,6 @@ import (
 	"gopkg.in/yaml.v3"
 	"strconv"
 	"strings"
-	"sync"
 )
 
 func FindItemInMap[T any](item string, collection map[KeyReference[string]]ValueReference[T]) *ValueReference[T] {
@@ -23,8 +22,6 @@ func FindItemInMap[T any](item string, collection map[KeyReference[string]]Value
 	return nil
 }
 
-var mapLock sync.Mutex
-
 func LocateRefNode(root *yaml.Node, idx *index.SpecIndex) *yaml.Node {
 	if rf, _, rv := utils.IsNodeRefValue(root); rf {
 		// run through everything and return as soon as we find a match.
@@ -80,7 +77,8 @@ func LocateRefNode(root *yaml.Node, idx *index.SpecIndex) *yaml.Node {
 		cleaned := strings.ReplaceAll(rv, "#/paths/", "")
 		cleaned = strings.ReplaceAll(cleaned, "/", ".")
 		cleaned = strings.ReplaceAll(cleaned, "~1", "/")
-		path, err := yamlpath.NewPath(fmt.Sprintf("$.paths.%s", cleaned))
+		yamlPath := fmt.Sprintf("$.paths.%s", cleaned)
+		path, err := yamlpath.NewPath(yamlPath)
 		if err == nil {
 			nodes, fErr := path.Find(idx.GetRootNode())
 			if fErr == nil {
diff --git a/datamodel/low/extraction_functions_test.go b/datamodel/low/extraction_functions_test.go
new file mode 100644
index 0000000..d5b8510
--- /dev/null
+++ b/datamodel/low/extraction_functions_test.go
@@ -0,0 +1,74 @@
+// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
+// SPDX-License-Identifier: MIT
+
+package low
+
+import (
+	"github.com/pb33f/libopenapi/index"
+	"github.com/stretchr/testify/assert"
+	"gopkg.in/yaml.v3"
+	"testing"
+)
+
+func TestFindItemInMap(t *testing.T) {
+	v := make(map[KeyReference[string]]ValueReference[string])
+	v[KeyReference[string]{
+		Value: "pizza",
+	}] = ValueReference[string]{
+		Value: "pie",
+	}
+	assert.Equal(t, "pie", FindItemInMap("pizza", v).Value)
+}
+
+func TestFindItemInMap_Error(t *testing.T) {
+	v := make(map[KeyReference[string]]ValueReference[string])
+	v[KeyReference[string]{
+		Value: "pizza",
+	}] = ValueReference[string]{
+		Value: "pie",
+	}
+	assert.Nil(t, FindItemInMap("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.NewSpecIndex(&idxNode)
+
+	yml = `$ref: '#/components/schemas/cake'`
+
+	var cNode yaml.Node
+	_ = yaml.Unmarshal([]byte(yml), &cNode)
+
+	located := LocateRefNode(cNode.Content[0], idx)
+	assert.NotNil(t, located)
+
+}
+
+func TestLocateRefNode_Path(t *testing.T) {
+
+	yml := `paths:
+  /burger/time:
+    description: hello`
+
+	var idxNode yaml.Node
+	mErr := yaml.Unmarshal([]byte(yml), &idxNode)
+	assert.NoError(t, mErr)
+	idx := index.NewSpecIndex(&idxNode)
+
+	yml = `$ref: '#/paths/~1burger~1time'`
+
+	var cNode yaml.Node
+	_ = yaml.Unmarshal([]byte(yml), &cNode)
+
+	located := LocateRefNode(cNode.Content[0], idx)
+	assert.NotNil(t, located)
+
+}