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|
package ignore
import (
"os"
"path/filepath"
"sync"
"testing"
)
// writeGitignore creates a .gitignore in dir with the given lines.
func writeGitignore(t *testing.T, dir string, lines ...string) {
t.Helper()
content := ""
for _, l := range lines {
content += l + "\n"
}
if err := os.WriteFile(filepath.Join(dir, ".gitignore"), []byte(content), 0o644); err != nil {
t.Fatalf("write .gitignore: %v", err)
}
}
func TestSimpleWildcard(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "*.log")
c := New(dir, true, nil)
if ign, _ := c.IsIgnored(filepath.Join(dir, "app.log")); !ign {
t.Error("expected app.log to be ignored")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "debug.log")); !ign {
t.Error("expected debug.log to be ignored")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "app.go")); ign {
t.Error("app.go should not be ignored")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "log.txt")); ign {
t.Error("log.txt should not be ignored")
}
}
func TestDirectoryPattern(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "build/")
c := New(dir, true, nil)
if ign, _ := c.IsIgnored(filepath.Join(dir, "build", "output.js")); !ign {
t.Error("expected build/output.js to be ignored")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "rebuild", "x")); ign {
t.Error("rebuild/x should not be ignored")
}
}
func TestDoubleStarPattern(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "**/temp")
c := New(dir, true, nil)
if ign, _ := c.IsIgnored(filepath.Join(dir, "a", "b", "temp")); !ign {
t.Error("expected a/b/temp to be ignored")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "temp")); !ign {
t.Error("expected temp to be ignored")
}
}
func TestNegation(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "*.log", "!important.log")
c := New(dir, true, nil)
if ign, _ := c.IsIgnored(filepath.Join(dir, "debug.log")); !ign {
t.Error("expected debug.log to be ignored")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "important.log")); ign {
t.Error("important.log should not be ignored (negated)")
}
}
func TestComments(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "# comment", "*.tmp")
c := New(dir, true, nil)
if ign, _ := c.IsIgnored(filepath.Join(dir, "x.tmp")); !ign {
t.Error("expected x.tmp to be ignored")
}
// A file literally named "# comment" should not be ignored
if ign, _ := c.IsIgnored(filepath.Join(dir, "# comment")); ign {
t.Error("file named '# comment' should not be ignored")
}
}
func TestExtensionGroups(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "*.out", "*.html")
c := New(dir, true, nil)
if ign, _ := c.IsIgnored(filepath.Join(dir, "coverage.out")); !ign {
t.Error("expected coverage.out to be ignored")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "main.go")); ign {
t.Error("main.go should not be ignored")
}
}
func TestNestedDirs(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "vendor/**")
c := New(dir, true, nil)
if ign, _ := c.IsIgnored(filepath.Join(dir, "vendor", "lib", "x.go")); !ign {
t.Error("expected vendor/lib/x.go to be ignored")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "myvendor", "x")); ign {
t.Error("myvendor/x should not be ignored")
}
}
func TestExtraPatternsOnly(t *testing.T) {
// No gitignore, only extra patterns
c := New("", false, []string{"*.min.js", "dist/**"})
if ign, reason := c.IsIgnored("/project/app.min.js"); !ign {
t.Error("expected app.min.js to be ignored")
} else if reason != "matched extra ignore pattern" {
t.Errorf("unexpected reason: %s", reason)
}
if ign, _ := c.IsIgnored("/project/dist/bundle.js"); !ign {
t.Error("expected dist/bundle.js to be ignored")
}
if ign, _ := c.IsIgnored("/project/app.js"); ign {
t.Error("app.js should not be ignored")
}
}
func TestCombinedGitignoreAndExtra(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "*.log")
c := New(dir, true, []string{"*.min.js"})
// gitignore match
if ign, reason := c.IsIgnored(filepath.Join(dir, "app.log")); !ign {
t.Error("expected app.log to be ignored")
} else if reason != "matched .gitignore pattern" {
t.Errorf("unexpected reason: %s", reason)
}
// extra pattern match
if ign, reason := c.IsIgnored(filepath.Join(dir, "app.min.js")); !ign {
t.Error("expected app.min.js to be ignored")
} else if reason != "matched extra ignore pattern" {
t.Errorf("unexpected reason: %s", reason)
}
// neither match
if ign, _ := c.IsIgnored(filepath.Join(dir, "main.go")); ign {
t.Error("main.go should not be ignored")
}
}
func TestNilChecker(t *testing.T) {
var c *Checker
if ign, _ := c.IsIgnored("/some/file.go"); ign {
t.Error("nil checker should never ignore")
}
}
func TestEmptyChecker(t *testing.T) {
c := New("", false, nil)
if ign, _ := c.IsIgnored("/some/file.go"); ign {
t.Error("empty checker should never ignore")
}
}
func TestUpdatePatterns(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "*.log")
c := New(dir, true, nil)
if ign, _ := c.IsIgnored(filepath.Join(dir, "app.log")); !ign {
t.Error("expected app.log ignored initially")
}
// Update: disable gitignore, add extra pattern
c.Update(false, []string{"*.tmp"})
if ign, _ := c.IsIgnored(filepath.Join(dir, "app.log")); ign {
t.Error("app.log should not be ignored after disabling gitignore")
}
if ign, _ := c.IsIgnored(filepath.Join(dir, "x.tmp")); !ign {
t.Error("expected x.tmp ignored after update")
}
}
func TestThreadSafety(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "*.log")
c := New(dir, true, nil)
var wg sync.WaitGroup
// Concurrent reads
for i := 0; i < 50; i++ {
wg.Add(1)
go func() {
defer wg.Done()
c.IsIgnored(filepath.Join(dir, "app.log"))
c.IsIgnored(filepath.Join(dir, "main.go"))
}()
}
// Concurrent updates
for i := 0; i < 10; i++ {
wg.Add(1)
go func() {
defer wg.Done()
c.Update(true, []string{"*.tmp"})
}()
}
wg.Wait()
}
func TestNoGitRoot(t *testing.T) {
// gitRoot empty but gitignore enabled — should not crash, gitignore has no effect
c := New("", true, []string{"*.bak"})
if ign, _ := c.IsIgnored("/any/file.go"); ign {
t.Error("should not ignore .go files")
}
if ign, _ := c.IsIgnored("/any/file.bak"); !ign {
t.Error("extra patterns should still work without git root")
}
}
func TestPathOutsideGitRoot(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir, "*.log")
c := New(dir, true, nil)
// Path outside the git root — relPath returns absolute, gitignore won't match
if ign, _ := c.IsIgnored("/completely/elsewhere/app.log"); ign {
t.Error("files outside git root should not be matched by gitignore")
}
}
func TestMixedRealGitignore(t *testing.T) {
dir := t.TempDir()
writeGitignore(t, dir,
"# Build outputs",
"bin/",
"*.exe",
"*.dll",
"",
"# Dependencies",
"vendor/**",
"",
"# IDE",
".idea/",
".vscode/",
)
c := New(dir, true, nil)
ignored := []string{
filepath.Join(dir, "bin", "app"),
filepath.Join(dir, "main.exe"),
filepath.Join(dir, "vendor", "lib", "x.go"),
filepath.Join(dir, ".idea", "workspace.xml"),
}
for _, p := range ignored {
if ign, _ := c.IsIgnored(p); !ign {
t.Errorf("expected %s to be ignored", p)
}
}
allowed := []string{
filepath.Join(dir, "main.go"),
filepath.Join(dir, "internal", "app.go"),
filepath.Join(dir, "README.md"),
}
for _, p := range allowed {
if ign, _ := c.IsIgnored(p); ign {
t.Errorf("%s should not be ignored", p)
}
}
}
|
