add negative / happy path tests

Author: peczenyj

pkg/golinters/ttempdir/testdata/ttempdir_happy_path.go

@@ -0,0 +1,54 @@
+//golangcitest:args -Ettempdir
+//golangcitest:expected_exitcode 0
+package testdata
+
+import (
+	"os"
+	"testing"
+)
+
+var (
+	dir = os.TempDir() // never seen
+)
+
+func setup() {
+	os.TempDir()        // never seen
+	dir := os.TempDir() // never seen
+	_ = dir
+	_ = os.TempDir() // never seen
+}
+
+func F(t *testing.T) {
+	setup()
+	t.TempDir()                        // never seen
+	t.Log(t.TempDir())                 // never seen
+	_ = t.TempDir()                    // never seen
+	if dir := t.TempDir(); dir != "" { // never seen
+		_ = dir
+	}
+}
+
+func BF(b *testing.B) {
+	TBF(b)
+	b.TempDir()                        // never seen
+	_ = b.TempDir()                    // never seen
+	if dir := b.TempDir(); dir != "" { // never seen
+		_ = dir
+	}
+}
+
+func TBF(tb testing.TB) {
+	tb.TempDir()                        // never seen
+	_ = tb.TempDir()                    // never seen
+	if dir := tb.TempDir(); dir != "" { // never seen
+		_ = dir
+	}
+}
+
+func FF(f *testing.F) {
+	f.TempDir()                        // never seen
+	_ = f.TempDir()                    // never seen
+	if dir := f.TempDir(); dir != "" { // never seen
+		_ = dir
+	}
+}

pkg/golinters/ttempdir/testdata/ttempdir_happy_path_test.go

@@ -0,0 +1,115 @@
+//golangcitest:args -Ettempdir
+//golangcitest:expected_exitcode 0
+package testdata
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+var (
+	tdir = os.TempDir() // never seen
+)
+
+func testsetup() {
+	os.TempDir()        // never seen
+	dir := os.TempDir() // never seen
+	_ = dir
+	_ = os.TempDir() // never seen
+}
+
+func TestF(t *testing.T) {
+	testsetup()
+	t.TempDir()                       // never seen
+	_ = t.TempDir()                   // never seen
+	if dir = t.TempDir(); dir != "" { // never seen
+		_ = dir
+	}
+}
+
+func BenchmarkF(b *testing.B) {
+	TB(b)
+	b.TempDir()                       // never seen
+	_ = b.TempDir()                   // never seen
+	if dir = b.TempDir(); dir != "" { // never seen
+		_ = dir
+	}
+}
+
+func TB(tb testing.TB) {
+	tb.TempDir()                       // never seen
+	_ = tb.TempDir()                   // never seen
+	if dir = tb.TempDir(); dir != "" { // never seen
+		_ = dir
+	}
+}
+
+func FuzzF(f *testing.F) {
+	f.TempDir()                       // never seen
+	_ = f.TempDir()                   // never seen
+	if dir = f.TempDir(); dir != "" { // never seen
+		_ = dir
+	}
+}
+
+func TestFunctionLiteral(t *testing.T) {
+	testsetup()
+	t.Run("test", func(t *testing.T) {
+		t.TempDir()                       // never seen
+		_ = t.TempDir()                   // never seen
+		if dir = t.TempDir(); dir != "" { // never seen
+			_ = dir
+		}
+	})
+}
+
+func TestEmpty(t *testing.T) {
+	t.Run("test", func(*testing.T) {})
+}
+
+func TestEmptyTB(t *testing.T) {
+	func(testing.TB) {}(t)
+}
+
+func TestRecursive(t *testing.T) {
+	t.Log( // recursion level 1
+		t.TempDir(), // never seen
+	)
+	t.Log( // recursion level 1
+		fmt.Sprintf("%s", // recursion level 2
+			t.TempDir(), // never seen
+		),
+	)
+	t.Log( // recursion level 1
+		filepath.Clean( // recursion level 2
+			fmt.Sprintf("%s", // recursion level 3
+				t.TempDir(), // never seen
+			),
+		),
+	)
+	t.Log( // recursion level 1
+		filepath.Join( // recursion level 2
+			filepath.Clean( // recursion level 3
+				fmt.Sprintf("%s", // recursion level 4
+					t.TempDir(), // never seen
+				),
+			),
+			"test",
+		),
+	)
+	t.Log( // recursion level 1
+		fmt.Sprintf("%s/foo-%d", // recursion level 2
+			filepath.Join( // recursion level 3
+				filepath.Clean( // recursion level 4
+					fmt.Sprintf("%s", // recursion level 5
+						os.TempDir(), // max recursion level reached.
+					),
+				),
+				"test",
+			),
+			1024,
+		),
+	)
+}