Replace template text with something that builde the entire context

cmd/kops/test/values.yaml

@@ -0,0 +1,4 @@
+Foo: "bar"
+Bar:
+  Foo:
+    Bar: "foo"

cmd/kops/toolbox_template_test.go

@@ -17,63 +17,12 @@ limitations under the License.
 package main
 
 import (
-	"reflect"
 	"testing"
 )
 
-// Copied from the Helm (https://github.com/kubernetes/helm) project:
-// https://github.com/kubernetes/helm/blob/282984e75fd115a0765730efe09d8257c72fa56d/cmd/helm/install_test.go#L230
-func TestMergeValues(t *testing.T) {
-	nestedMap := map[string]interface{}{
-		"foo": "bar",
-		"baz": map[string]string{
-			"cool": "stuff",
-		},
-	}
-	anotherNestedMap := map[string]interface{}{
-		"foo": "bar",
-		"baz": map[string]string{
-			"cool":    "things",
-			"awesome": "stuff",
-		},
-	}
-	flatMap := map[string]interface{}{
-		"foo": "bar",
-		"baz": "stuff",
-	}
-	anotherFlatMap := map[string]interface{}{
-		"testing": "fun",
-	}
-
-	testMap := mergeValues(flatMap, nestedMap)
-	equal := reflect.DeepEqual(testMap, nestedMap)
-	if !equal {
-		t.Errorf("Expected a nested map to overwrite a flat value. Expected: %v, got %v", nestedMap, testMap)
-	}
-
-	testMap = mergeValues(nestedMap, flatMap)
-	equal = reflect.DeepEqual(testMap, flatMap)
-	if !equal {
-		t.Errorf("Expected a flat value to overwrite a map. Expected: %v, got %v", flatMap, testMap)
-	}
-
-	testMap = mergeValues(nestedMap, anotherNestedMap)
-	equal = reflect.DeepEqual(testMap, anotherNestedMap)
-	if !equal {
-		t.Errorf("Expected a nested map to overwrite another nested map. Expected: %v, got %v", anotherNestedMap, testMap)
-	}
-
-	testMap = mergeValues(anotherFlatMap, anotherNestedMap)
-	expectedMap := map[string]interface{}{
-		"testing": "fun",
-		"foo":     "bar",
-		"baz": map[string]string{
-			"cool":    "things",
-			"awesome": "stuff",
-		},
-	}
-	equal = reflect.DeepEqual(testMap, expectedMap)
-	if !equal {
-		t.Errorf("Expected a map with different keys to merge properly with another map. Expected: %v, got %v", expectedMap, testMap)
+func TestNewTemplateContext(t *testing.T) {
+	context, _ := newTemplateContext([]string{"test/values.yaml"}, []string{"Foo=baz"}, []string{})
+	if context["Foo"] != "baz" {
+		t.Errorf("Got %v, expected baz", context["foo"])
 	}
 }