add test cases for named function

testdata/src/sample/namedfunc_test.go

@@ -0,0 +1,52 @@
+package sample
+
+import "testing"
+
+func testFn1(t *testing.T) {
+	t.Parallel()
+	call("Named1_Sub")
+}
+
+func testFn2(t *testing.T) {
+	call("Named2_Sub")
+}
+
+func testFn3(t *testing.T) {
+	t.Parallel()
+	call("Named3_Sub")
+}
+
+func Test_Named1(t *testing.T) { // want "Test_Named1 should call t.Parallel on the top level"
+	teardown := setup("Test_Named1")
+	t.Cleanup(teardown)
+
+	fn := testFn1
+
+	t.Run("Named1_Sub1", fn)
+
+	t.Run("Named1_Sub2", fn)
+}
+
+func Test_Named2(t *testing.T) { // want "Test_Named2's sub tests should call t.Parallel"
+	teardown := setup("Test_Named1")
+	t.Cleanup(teardown)
+	t.Parallel()
+
+	fn := testFn2
+
+	t.Run("Named2_Sub1", fn)
+
+	t.Run("Named2_Sub2", fn)
+}
+
+func Test_Named3(t *testing.T) { // OK
+	teardown := setup("Test_Named3")
+	t.Cleanup(teardown)
+	t.Parallel()
+
+	fn := testFn3
+
+	t.Run("Named3_Sub1", fn)
+
+	t.Run("Named3_Sub2", fn)
+}