check: Add unit testing for RegistryIndexFileCheck

Closes #4

check/registry_index_file_test.go

@@ -0,0 +1,69 @@
+package check
+
+import (
+	"testing"
+)
+
+func TestRegistryIndexFileCheck(t *testing.T) {
+	testCases := []struct {
+		Name        string
+		BasePath    string
+		Path        string
+		Options     *RegistryIndexFileOptions
+		ExpectError bool
+	}{
+		{
+			Name:     "valid",
+			BasePath: "testdata/valid-registry-files",
+			Path:     "index.md",
+		},
+		{
+			Name:        "invalid extension",
+			BasePath:    "testdata/invalid-registry-files",
+			Path:        "index_invalid_extension.markdown",
+			ExpectError: true,
+		},
+		{
+			Name:        "invalid frontmatter",
+			BasePath:    "testdata/invalid-registry-files",
+			Path:        "index_invalid_frontmatter.md",
+			ExpectError: true,
+		},
+		{
+			Name:        "invalid frontmatter with layout",
+			BasePath:    "testdata/invalid-registry-files",
+			Path:        "index_with_layout.md",
+			ExpectError: true,
+		},
+		{
+			Name:        "invalid frontmatter with subcategory",
+			BasePath:    "testdata/invalid-registry-files",
+			Path:        "index_with_subcategory.md",
+			ExpectError: true,
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.Name, func(t *testing.T) {
+			if testCase.Options == nil {
+				testCase.Options = &RegistryIndexFileOptions{}
+			}
+
+			if testCase.Options.FileOptions == nil {
+				testCase.Options.FileOptions = &FileOptions{
+					BasePath: testCase.BasePath,
+				}
+			}
+
+			got := NewRegistryIndexFileCheck(testCase.Options).Run(testCase.Path)
+
+			if got == nil && testCase.ExpectError {
+				t.Errorf("expected error, got no error")
+			}
+
+			if got != nil && !testCase.ExpectError {
+				t.Errorf("expected no error, got error: %s", got)
+			}
+		})
+	}
+}

check/testdata/invalid-registry-files/index_invalid_extension.markdown

@@ -0,0 +1,9 @@
+---
+page_title: "Example Provider"
+description: |-
+  Example description.
+---
+
+# Example Provider
+
+Example contents.

check/testdata/invalid-registry-files/index_invalid_frontmatter.md

@@ -0,0 +1,9 @@
+---
+page_title: "Example Provider"
+description: |-
+Missing indentation.
+---
+
+# Example Provider
+
+Example contents.

check/testdata/invalid-registry-files/index_with_layout.md

@@ -0,0 +1,10 @@
+---
+layout: "example"
+page_title: "Example Provider"
+description: |-
+  Example description.
+---
+
+# Example Provider
+
+Example contents.

check/testdata/invalid-registry-files/index_with_subcategory.md

@@ -0,0 +1,10 @@
+---
+subcategory: "example"
+page_title: "Example Provider"
+description: |-
+  Example description.
+---
+
+# Example Provider
+
+Example contents.

check/testdata/valid-registry-files/index.md

@@ -0,0 +1,9 @@
+---
+page_title: "Example Provider"
+description: |-
+  Example description.
+---
+
+# Example Provider
+
+Example contents.