add test for running with feature contents

run.go

@@ -227,10 +227,10 @@ func runWithOptions(suiteName string, runner runner, opt Options) int {
 	runner.fmt = multiFmt.FormatterFunc(suiteName, output)
 
 	var err error
-	if len(opt.Paths) > 0 {
-		runner.features, err = parser.ParseFeatures(opt.Tags, opt.Paths)
-	} else {
+	if len(opt.FeatureContents) > 0 {
 		runner.features, err = parser.ParseFromBytes(opt.Tags, opt.FeatureContents)
+	} else {
+		runner.features, err = parser.ParseFeatures(opt.Tags, opt.Paths)
 	}
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)

run_test.go

@@ -263,6 +263,46 @@ func Test_ByDefaultRunsFeaturesPath(t *testing.T) {
 	assert.Equal(t, exitSuccess, status)
 }
 
+func Test_RunsWithFeatureContentsOption(t *testing.T) {
+	items, err := ioutil.ReadDir("./features")
+	require.NoError(t, err)
+
+	featureContents := make(map[string][]byte)
+	for _, item := range items {
+		if !item.IsDir() && strings.Contains(item.Name(), ".feature"){
+			contents, err := os.ReadFile("./features/"+item.Name())
+			require.NoError(t, err)
+			featureContents[item.Name()] = contents
+		}
+	}
+
+	opts := Options{
+		Format: "progress",
+		Output: ioutil.Discard,
+		Strict: true,
+		FeatureContents: featureContents,
+	}
+
+	status := TestSuite{
+		Name:                "fails",
+		ScenarioInitializer: func(_ *ScenarioContext) {},
+		Options:             &opts,
+	}.Run()
+
+	// should fail in strict mode due to undefined steps
+	assert.Equal(t, exitFailure, status)
+
+	opts.Strict = false
+	status = TestSuite{
+		Name:                "succeeds",
+		ScenarioInitializer: func(_ *ScenarioContext) {},
+		Options:             &opts,
+	}.Run()
+
+	// should succeed in non strict mode due to undefined steps
+	assert.Equal(t, exitSuccess, status)
+}
+
 func bufErrorPipe(t *testing.T) (io.ReadCloser, func()) {
 	stderr := os.Stderr
 	r, w, err := os.Pipe()