add more tests

plugins/config/config_test.go

@@ -0,0 +1,36 @@
+package config
+
+import (
+	"io/ioutil"
+	"os"
+	"strings"
+	"testing"
+
+	. "github.com/onsi/gomega"
+)
+
+var (
+	testAppName = "test-app-1"
+	testAppDir  = strings.Join([]string{"/home/dokku/", testAppName}, "")
+)
+
+func setupTestApp() (err error) {
+	Expect(os.MkdirAll(testAppDir, 0644)).To(Succeed())
+	b := []byte("export testKey=TESTING\n")
+	if err = ioutil.WriteFile(strings.Join([]string{testAppDir, "/ENV"}, ""), b, 0644); err != nil {
+		return
+	}
+	return
+}
+
+func teardownTestApp() {
+	os.RemoveAll(testAppDir)
+}
+
+func TestConfigGetWithDefault(t *testing.T) {
+	RegisterTestingT(t)
+	Expect(setupTestApp()).To(Succeed())
+	Expect(GetWithDefault(testAppName, "unknownKey", "UNKNOWN")).To(Equal("UNKNOWN"))
+	Expect(GetWithDefault(testAppName, "testKey", "testKey")).To(Equal("TESTING"))
+	teardownTestApp()
+}