fix: enable thelper linter

.golangci.yaml

@@ -102,6 +102,7 @@ linters:
     - revive
     - tenv
     - testifylint
+    - thelper
     - typecheck
     - unconvert
     - unused

internal/dbtest/db.go

@@ -16,6 +16,7 @@ import (
 
 // InitDB initializes testing database.
 func InitDB(t *testing.T, fixtureFiles []string) string {
+	t.Helper()
 	// Create a temp dir
 	cacheDir := t.TempDir()
 
@@ -41,6 +42,7 @@ func Close() error {
 }
 
 func InitJavaDB(t *testing.T, cacheDir string) {
+	t.Helper()
 	dbDir := filepath.Join(cacheDir, "java-db")
 	javaDB, err := jdb.New(dbDir)
 	require.NoError(t, err)

internal/dbtest/fake.go

@@ -28,6 +28,7 @@ func (f fakeLayer) MediaType() (types.MediaType, error) {
 }
 
 func NewFakeLayer(t *testing.T, input string, mediaType types.MediaType) v1.Layer {
+	t.Helper()
 	layer, err := tarball.LayerFromFile(input, tarball.WithMediaType(mediaType))
 	require.NoError(t, err)
 
@@ -39,6 +40,7 @@ type FakeDBOptions struct {
 }
 
 func NewFakeDB(t *testing.T, dbPath string, opts FakeDBOptions) *oci.Artifact {
+	t.Helper()
 	mediaType := lo.Ternary(opts.MediaType != "", opts.MediaType, defaultMediaType)
 	img := new(fakei.FakeImage)
 	img.LayersReturns([]v1.Layer{NewFakeLayer(t, dbPath, mediaType)}, nil)
@@ -66,6 +68,7 @@ func NewFakeDB(t *testing.T, dbPath string, opts FakeDBOptions) *oci.Artifact {
 }
 
 func ArchiveDir(t *testing.T, dir string) string {
+	t.Helper()
 	tmpDBPath := filepath.Join(t.TempDir(), "db.tar")
 	f, err := os.Create(tmpDBPath)
 	require.NoError(t, err)

internal/gittest/server.go

@@ -26,6 +26,7 @@ var signature = &object.Signature{
 }
 
 func NewServer(t *testing.T, repo, dir string) *httptest.Server {
+	t.Helper()
 	wtDir := t.TempDir()
 
 	// git init
@@ -60,6 +61,7 @@ func NewServer(t *testing.T, repo, dir string) *httptest.Server {
 }
 
 func Clone(t *testing.T, ts *httptest.Server, repo, worktree string) *git.Repository {
+	t.Helper()
 	cloneOptions := git.CloneOptions{
 		URL: ts.URL + "/" + repo + ".git",
 	}
@@ -71,6 +73,7 @@ func Clone(t *testing.T, ts *httptest.Server, repo, worktree string) *git.Reposi
 }
 
 func CommitAll(t *testing.T, r *git.Repository, msg string) {
+	t.Helper()
 	w, err := r.Worktree()
 	require.NoError(t, err)
 
@@ -84,6 +87,7 @@ func CommitAll(t *testing.T, r *git.Repository, msg string) {
 }
 
 func SetTag(t *testing.T, r *git.Repository, tag string) {
+	t.Helper()
 	h, err := r.Head()
 	require.NoError(t, err)
 
@@ -96,6 +100,7 @@ func SetTag(t *testing.T, r *git.Repository, tag string) {
 }
 
 func PushTags(t *testing.T, r *git.Repository) {
+	t.Helper()
 	t.Log("git push --tags")
 	err := r.Push(&git.PushOptions{
 		RemoteName: "origin",
@@ -111,6 +116,7 @@ func PushTags(t *testing.T, r *git.Repository) {
 }
 
 func CreateRemoteBranch(t *testing.T, r *git.Repository, branchName string) {
+	t.Helper()
 	wt, err := r.Worktree()
 	require.NoError(t, err)
 

internal/testutil/docker.go

@@ -17,6 +17,7 @@ type DockerClient struct {
 }
 
 func NewDockerClient(t *testing.T) *DockerClient {
+	t.Helper()
 	cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
 	require.NoError(t, err)
 	return &DockerClient{Client: cli}

internal/testutil/fs.go

@@ -13,6 +13,7 @@ import (
 )
 
 func CopyFile(t *testing.T, src, dst string) {
+	t.Helper()
 	MustMkdirAll(t, filepath.Dir(dst))
 
 	_, err := fsutils.CopyFile(src, dst)
@@ -22,6 +23,7 @@ func CopyFile(t *testing.T, src, dst string) {
 // CopyDir copies the directory content from src to dst.
 // It supports only simple cases for testing.
 func CopyDir(t *testing.T, src, dst string) {
+	t.Helper()
 	srcInfo, err := os.Stat(src)
 	require.NoError(t, err)
 
@@ -65,25 +67,29 @@ func MustReadYAML(t *testing.T, path string, out any) {
 }
 
 func MustMkdirAll(t *testing.T, dir string) {
+	t.Helper()
 	err := os.MkdirAll(dir, 0750)
 	require.NoError(t, err)
 }
 
 func MustReadJSON(t *testing.T, filePath string, v any) {
+	t.Helper()
 	b, err := os.ReadFile(filePath)
 	require.NoError(t, err)
 	err = json.Unmarshal(b, v)
 	require.NoError(t, err)
 }
 
 func MustWriteJSON(t *testing.T, filePath string, v any) {
+	t.Helper()
 	data, err := json.Marshal(v)
 	require.NoError(t, err)
 
 	MustWriteFile(t, filePath, data)
 }
 
 func MustWriteFile(t *testing.T, filePath string, content []byte) {
+	t.Helper()
 	dir := filepath.Dir(filePath)
 	MustMkdirAll(t, dir)
 

internal/testutil/gzip.go

@@ -16,6 +16,7 @@ const (
 )
 
 func DecompressGzip(t *testing.T, src, dst string) {
+	t.Helper()
 	w, err := os.Create(dst)
 	require.NoError(t, err)
 	defer w.Close()
@@ -33,6 +34,7 @@ func DecompressGzip(t *testing.T, src, dst string) {
 
 // DecompressSparseGzip decompresses a sparse gzip file for virtual machine image.
 func DecompressSparseGzip(t *testing.T, src, dst string) {
+	t.Helper()
 	w, err := os.Create(dst)
 	require.NoError(t, err)
 	defer w.Close()

internal/testutil/util.go

@@ -15,6 +15,7 @@ import (
 )
 
 func AssertRuleFound(t *testing.T, ruleID string, results scan.Results, message string, args ...any) {
+	t.Helper()
 	found := ruleIDInResults(ruleID, results.GetFailed())
 	assert.True(t, found, append([]any{message}, args...)...)
 	for _, result := range results.GetFailed() {
@@ -32,6 +33,7 @@ func AssertRuleFound(t *testing.T, ruleID string, results scan.Results, message
 }
 
 func AssertRuleNotFound(t *testing.T, ruleID string, results scan.Results, message string, args ...any) {
+	t.Helper()
 	found := ruleIDInResults(ruleID, results.GetFailed())
 	assert.False(t, found, append([]any{message}, args...)...)
 }
@@ -46,6 +48,7 @@ func ruleIDInResults(ruleID string, results scan.Results) bool {
 }
 
 func CreateFS(t *testing.T, files map[string]string) fs.FS {
+	t.Helper()
 	memfs := memoryfs.New()
 	for name, content := range files {
 		name := strings.TrimPrefix(name, "/")
@@ -58,6 +61,7 @@ func CreateFS(t *testing.T, files map[string]string) fs.FS {
 }
 
 func AssertDefsecEqual(t *testing.T, expected, actual any) {
+	t.Helper()
 	expectedJson, err := json.MarshalIndent(expected, "", "\t")
 	require.NoError(t, err)
 	actualJson, err := json.MarshalIndent(actual, "", "\t")

pkg/cache/fs_test.go

@@ -17,6 +17,7 @@ import (
 )
 
 func newTempDB(t *testing.T, dbPath string) (string, error) {
+	t.Helper()
 	dir := t.TempDir()
 	if dbPath != "" {
 		d := filepath.Join(dir, "fanal")

pkg/commands/clean/run_test.go

@@ -28,6 +28,7 @@ func TestRun(t *testing.T) {
 			},
 			wantErr: false,
 			checkFunc: func(t *testing.T, dir string) {
+				t.Helper()
 				assert.NoDirExists(t, filepath.Join(dir, "fanal"))
 				assert.NoDirExists(t, filepath.Join(dir, "db"))
 				assert.NoDirExists(t, filepath.Join(dir, "java-db"))
@@ -43,6 +44,7 @@ func TestRun(t *testing.T) {
 			},
 			wantErr: false,
 			checkFunc: func(t *testing.T, dir string) {
+				t.Helper()
 				assert.NoDirExists(t, filepath.Join(dir, "fanal"))
 				assert.DirExists(t, filepath.Join(dir, "db"))
 				assert.DirExists(t, filepath.Join(dir, "java-db"))
@@ -57,6 +59,7 @@ func TestRun(t *testing.T) {
 			},
 			wantErr: false,
 			checkFunc: func(t *testing.T, dir string) {
+				t.Helper()
 				assert.NoDirExists(t, filepath.Join(dir, "db"))
 				assert.DirExists(t, filepath.Join(dir, "fanal"))
 				assert.DirExists(t, filepath.Join(dir, "java-db"))
@@ -71,6 +74,7 @@ func TestRun(t *testing.T) {
 			},
 			wantErr: false,
 			checkFunc: func(t *testing.T, dir string) {
+				t.Helper()
 				assert.NoDirExists(t, filepath.Join(dir, "java-db"))
 				assert.DirExists(t, filepath.Join(dir, "fanal"))
 				assert.DirExists(t, filepath.Join(dir, "db"))
@@ -85,6 +89,7 @@ func TestRun(t *testing.T) {
 			},
 			wantErr: false,
 			checkFunc: func(t *testing.T, dir string) {
+				t.Helper()
 				assert.NoDirExists(t, filepath.Join(dir, "policy"))
 				assert.DirExists(t, filepath.Join(dir, "fanal"))
 				assert.DirExists(t, filepath.Join(dir, "db"))
@@ -99,6 +104,7 @@ func TestRun(t *testing.T) {
 			},
 			wantErr: false,
 			checkFunc: func(t *testing.T, dir string) {
+				t.Helper()
 				assert.DirExists(t, filepath.Join(dir, "policy"))
 				assert.DirExists(t, filepath.Join(dir, "fanal"))
 				assert.DirExists(t, filepath.Join(dir, "db"))
@@ -145,6 +151,7 @@ func TestRun(t *testing.T) {
 }
 
 func createTestFiles(t *testing.T, dir string) {
+	t.Helper()
 	subdirs := []string{
 		"fanal",
 		"db",

pkg/fanal/artifact/repo/git_test.go

@@ -21,6 +21,7 @@ import (
 )
 
 func setupGitRepository(t *testing.T, repo, dir string) (*httptest.Server, *git.Repository) {
+	t.Helper()
 	gs := gittest.NewServer(t, repo, dir)
 
 	worktree := t.TempDir()

pkg/fanal/image/image_test.go

@@ -20,6 +20,7 @@ import (
 )
 
 func setupEngineAndRegistry(t *testing.T) (*httptest.Server, *httptest.Server) {
+	t.Helper()
 	imagePaths := map[string]string{
 		"alpine:3.10":  "../test/testdata/alpine-310.tar.gz",
 		"alpine:3.11":  "../test/testdata/alpine-311.tar.gz",
@@ -302,6 +303,7 @@ func TestNewDockerImage(t *testing.T) {
 }
 
 func setupPrivateRegistry(t *testing.T) *httptest.Server {
+	t.Helper()
 	images := map[string]v1.Image{
 		"v2/library/alpine:3.10": localImage(t),
 	}
@@ -557,6 +559,7 @@ func TestDockerPlatformArguments(t *testing.T) {
 }
 
 func localImage(t *testing.T) v1.Image {
+	t.Helper()
 	img, err := tarfile.ImageFromPath("../test/testdata/alpine-310.tar.gz")
 	require.NoError(t, err)
 	return img

pkg/iac/adapters/cloudformation/testutil/testutil.go

@@ -13,6 +13,7 @@ import (
 type adaptFn[T any] func(fctx parser.FileContext) T
 
 func AdaptAndCompare[T any](t *testing.T, source string, expected any, fn adaptFn[T]) {
+	t.Helper()
 	fsys := testutil.CreateFS(t, map[string]string{
 		"main.yaml": source,
 	})

pkg/iac/adapters/terraform/tftestutil/testutil.go

@@ -10,6 +10,7 @@ import (
 )
 
 func CreateModulesFromSource(t *testing.T, source, ext string) terraform.Modules {
+	t.Helper()
 	fs := testutil.CreateFS(t, map[string]string{
 		"source" + ext: source,
 	})

pkg/iac/rego/scanner_test.go

@@ -20,6 +20,7 @@ import (
 )
 
 func CreateFS(t *testing.T, files map[string]string) fs.FS {
+	t.Helper()
 	memfs := memoryfs.New()
 	for name, content := range files {
 		name := strings.TrimPrefix(name, "/")

pkg/iac/scanners/cloudformation/parser/parser_test.go

@@ -14,6 +14,7 @@ import (
 )
 
 func parseFile(t *testing.T, source, name string) (FileContexts, error) {
+	t.Helper()
 	tmp, err := os.MkdirTemp(os.TempDir(), "defsec")
 	require.NoError(t, err)
 	defer func() { _ = os.RemoveAll(tmp) }()
@@ -174,6 +175,7 @@ Resources:
 }
 
 func createTestFileContext(t *testing.T, source string) *FileContext {
+	t.Helper()
 	contexts, err := parseFile(t, source, "main.yaml")
 	require.NoError(t, err)
 	require.Len(t, contexts, 1)

pkg/iac/scanners/kubernetes/scanner_test.go

@@ -288,6 +288,7 @@ spec:
 }
 
 func assertLines(t *testing.T, content string, results scan.Results) {
+	t.Helper()
 	lines := strings.Split(content, "\n")
 	for _, res := range results {
 		actualCode, err := res.GetCode()

pkg/iac/scanners/terraform/parser/parser_test.go

@@ -1503,6 +1503,7 @@ resource "test_block" "this" {
 }
 
 func parse(t *testing.T, files map[string]string) terraform.Modules {
+	t.Helper()
 	fs := testutil.CreateFS(t, files)
 	parser := New(fs, "", OptionStopOnHCLError(true))
 	require.NoError(t, parser.ParseFS(context.TODO(), "."))

pkg/iac/scanners/terraform/setup_test.go

@@ -15,6 +15,7 @@ import (
 )
 
 func createModulesFromSource(t *testing.T, source, ext string) terraform.Modules {
+	t.Helper()
 	fs := testutil.CreateFS(t, map[string]string{
 		"source" + ext: source,
 	})
@@ -31,10 +32,12 @@ func createModulesFromSource(t *testing.T, source, ext string) terraform.Modules
 }
 
 func scanHCLWithWorkspace(t *testing.T, source, workspace string) scan.Results {
+	t.Helper()
 	return scanHCL(t, source, ScannerWithWorkspaceName(workspace))
 }
 
 func scanHCL(t *testing.T, source string, opts ...options.ScannerOption) scan.Results {
+	t.Helper()
 
 	fs := testutil.CreateFS(t, map[string]string{
 		"main.tf": source,
@@ -47,6 +50,7 @@ func scanHCL(t *testing.T, source string, opts ...options.ScannerOption) scan.Re
 }
 
 func scanJSON(t *testing.T, source string) scan.Results {
+	t.Helper()
 
 	fs := testutil.CreateFS(t, map[string]string{
 		"main.tf.json": source,

pkg/log/handler_test.go

@@ -148,6 +148,7 @@ func TestContext(t *testing.T) {
 }
 
 func compareLines(t *testing.T, got string, wantLines []string) {
+	t.Helper()
 	// Strip color codes from the output.
 	got = stripColorCodes(got)