Add test to make sure ddev creates ~/.ddev

cmd/ddev/cmd/root_test.go

@@ -9,6 +9,8 @@ import (
 	"github.com/drud/ddev/pkg/testcommon"
 	"github.com/drud/ddev/pkg/util"
 
+	"path/filepath"
+
 	"github.com/drud/ddev/pkg/appports"
 	"github.com/drud/ddev/pkg/exec"
 	"github.com/drud/ddev/pkg/plugins/platform"
@@ -82,6 +84,39 @@ func TestGetActiveAppRoot(t *testing.T) {
 	switchDir()
 }
 
+// TestCreateGlobalDdevDir checks to make sure that ddev will create a ~/.ddev (and updatecheck)
+func TestCreateGlobalDdevDir(t *testing.T) {
+	tmpDir := testcommon.CreateTmpDir("globalDdevCheck")
+	origHome := os.Getenv("HOME")
+
+	// Make sure that the tmpDir/.ddev and tmpDir/.ddev/.update don't exist before we run ddev.
+	_, err := os.Stat(filepath.Join(tmpDir, ".ddev"))
+	assert.Error(t, err)
+	assert.True(t, os.IsNotExist(err))
+
+	_, err = os.Stat(filepath.Join(tmpDir, ".ddev", ".update"))
+	assert.Error(t, err)
+	assert.True(t, os.IsNotExist(err))
+
+	// Change the homedir temporarily
+	err = os.Setenv("HOME", tmpDir)
+	assert.NoError(t, err)
+
+	args := []string{}
+	_, err = exec.RunCommand(DdevBin, args)
+	assert.NoError(t, err)
+
+	_, err = os.Stat(filepath.Join(tmpDir, ".ddev", ".update"))
+	assert.NoError(t, err)
+
+	// Cleanup our tmp homedir
+	err = os.RemoveAll(tmpDir)
+	assert.NoError(t, err)
+
+	err = os.Setenv("HOME", origHome)
+	assert.NoError(t, err)
+}
+
 // addSites runs `ddev start` on the test apps
 func addSites() {
 	for _, site := range DevTestSites {