if godog package is not a module, make sure it is installed

builder_go110.go

@@ -161,6 +161,16 @@ func Build(bin string) error {
 		return err
 	}
 
+	if !isModule(godogImportPath, mods) {
+		// must make sure that package is installed
+		// modules are installed on download
+		cmd := exec.Command("go", "install", "-i", godogPkg.ImportPath)
+		cmd.Env = os.Environ()
+		if out, err := cmd.CombinedOutput(); err != nil {
+			return fmt.Errorf("failed to install godog package: %s, reason: %v", string(out), err)
+		}
+	}
+
 	// compile godog testmain package archive
 	// we do not depend on CGO so a lot of checks are not necessary
 	testMainPkgOut := filepath.Join(testdir, "main.a")
@@ -488,3 +498,17 @@ func readModules() []*module {
 	}
 	return mods
 }
+
+func isModule(name string, mods []*module) bool {
+	if mods == nil {
+		return false
+	}
+
+	for _, mod := range mods {
+		if pkg := mod.match(name); pkg != nil {
+			return true
+		}
+	}
+
+	return false
+}

builder_go111_test.go

@@ -11,8 +11,13 @@ import (
 )
 
 func TestGodogBuildWithModuleOutsideGopath(t *testing.T) {
+	_, err := exec.LookPath("godog")
+	if err != nil {
+		t.SkipNow() // no command installed
+	}
+
 	dir := filepath.Join(os.TempDir(), "godogs")
-	err := buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
+	err = buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
 	if err != nil {
 		os.RemoveAll(dir)
 		t.Fatal(err)
@@ -48,9 +53,13 @@ func TestGodogBuildWithModuleOutsideGopath(t *testing.T) {
 }
 
 func TestGodogBuildWithModuleInsideGopath(t *testing.T) {
+	_, err := exec.LookPath("godog")
+	if err != nil {
+		t.SkipNow() // no command installed
+	}
 	gopath := filepath.Join(os.TempDir(), "_gp")
 	dir := filepath.Join(gopath, "src", "godogs")
-	err := buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
+	err = buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
 	if err != nil {
 		os.RemoveAll(gopath)
 		t.Fatal(err)

builder_test.go

@@ -92,8 +92,12 @@ func buildTestPackage(dir, feat, src, testSrc string) error {
 }
 
 func TestGodogBuildWithSourceNotInGoPath(t *testing.T) {
+	_, err := exec.LookPath("godog")
+	if err != nil {
+		t.SkipNow() // no command installed
+	}
 	dir := filepath.Join(os.TempDir(), "godogs")
-	err := buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
+	err = buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
 	if err != nil {
 		os.RemoveAll(dir)
 		t.Fatal(err)
@@ -124,8 +128,12 @@ func TestGodogBuildWithSourceNotInGoPath(t *testing.T) {
 }
 
 func TestGodogBuildWithoutSourceNotInGoPath(t *testing.T) {
+	_, err := exec.LookPath("godog")
+	if err != nil {
+		t.SkipNow() // no command installed
+	}
 	dir := filepath.Join(os.TempDir(), "godogs")
-	err := buildTestPackage(dir, builderFeatureFile, "", "")
+	err = buildTestPackage(dir, builderFeatureFile, "", "")
 	if err != nil {
 		os.RemoveAll(dir)
 		t.Fatal(err)
@@ -156,8 +164,12 @@ func TestGodogBuildWithoutSourceNotInGoPath(t *testing.T) {
 }
 
 func TestGodogBuildWithoutTestSourceNotInGoPath(t *testing.T) {
+	_, err := exec.LookPath("godog")
+	if err != nil {
+		t.SkipNow() // no command installed
+	}
 	dir := filepath.Join(os.TempDir(), "godogs")
-	err := buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, "")
+	err = buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, "")
 	if err != nil {
 		os.RemoveAll(dir)
 		t.Fatal(err)
@@ -188,9 +200,13 @@ func TestGodogBuildWithoutTestSourceNotInGoPath(t *testing.T) {
 }
 
 func TestGodogBuildWithinGopath(t *testing.T) {
+	_, err := exec.LookPath("godog")
+	if err != nil {
+		t.SkipNow() // no command installed
+	}
 	gopath := filepath.Join(os.TempDir(), "_gp")
 	dir := filepath.Join(gopath, "src", "godogs")
-	err := buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
+	err = buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
 	if err != nil {
 		os.RemoveAll(gopath)
 		t.Fatal(err)
@@ -233,9 +249,13 @@ func TestGodogBuildWithinGopath(t *testing.T) {
 }
 
 func TestGodogBuildWithVendoredGodog(t *testing.T) {
+	_, err := exec.LookPath("godog")
+	if err != nil {
+		t.SkipNow() // no command installed
+	}
 	gopath := filepath.Join(os.TempDir(), "_gp")
 	dir := filepath.Join(gopath, "src", "godogs")
-	err := buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
+	err = buildTestPackage(dir, builderFeatureFile, builderMainCodeFile, builderTestFile)
 	if err != nil {
 		os.RemoveAll(gopath)
 		t.Fatal(err)