Moved builder tests to a godog_test pkg

builder_go112_test.go

@@ -1,7 +1,7 @@
 // +build go1.12
 // +build !go1.13
 
-package godog
+package godog_test
 
 import (
 	"bytes"

builder_go113_test.go

@@ -1,6 +1,6 @@
 // +build go1.13
 
-package godog
+package godog_test
 
 import (
 	"bytes"

builder_go_module_test.go

@@ -1,4 +1,4 @@
-package godog
+package godog_test
 
 import (
 	"bytes"
@@ -7,6 +7,8 @@ import (
 	"os/exec"
 	"path/filepath"
 	"testing"
+
+	"github.com/cucumber/godog"
 )
 
 func TestGodogBuildWithModuleOutsideGopathAndHavingOnlyFeature(t *testing.T) {
@@ -35,7 +37,7 @@ func TestGodogBuildWithModuleOutsideGopathAndHavingOnlyFeature(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if out, err := exec.Command("go", "mod", "edit", "-require", fmt.Sprintf("github.com/cucumber/godog@%s", Version)).CombinedOutput(); err != nil {
+	if out, err := exec.Command("go", "mod", "edit", "-require", fmt.Sprintf("github.com/cucumber/godog@%s", godog.Version)).CombinedOutput(); err != nil {
 		t.Log(string(out))
 		t.Fatal(err)
 	}

builder_test.go

@@ -1,4 +1,4 @@
-package godog
+package godog_test
 
 import (
 	"bytes"
@@ -9,6 +9,8 @@ import (
 	"path/filepath"
 	"strings"
 	"testing"
+
+	"github.com/cucumber/godog"
 )
 
 var builderFeatureFile = `Feature: eat godogs
@@ -137,7 +139,7 @@ func buildTestCommand(t *testing.T, args ...string) *exec.Cmd {
 	if build.Default.GOOS == "windows" {
 		bin += ".exe"
 	}
-	if err = Build(bin); err != nil {
+	if err = godog.Build(bin); err != nil {
 		t.Fatal(err)
 	}