Replicate most of drone-helm's config

internal/helm/config_test.go

@@ -0,0 +1,28 @@
+package helm
+
+import (
+	"github.com/stretchr/testify/suite"
+	"testing"
+)
+
+type ConfigTestSuite struct {
+	suite.Suite
+}
+
+func TestConfigTestSuite(t *testing.T) {
+	suite.Run(t, new(ConfigTestSuite))
+}
+
+func (suite *ConfigTestSuite) TestHelmCommandDecodeSuccess() {
+	cmd := HelmCommand("")
+	err := cmd.Decode("upgrade")
+	suite.Require().Nil(err)
+
+	suite.EqualValues(cmd, "upgrade")
+}
+
+func (suite *ConfigTestSuite) TestHelmCommandDecodeFailure() {
+	cmd := HelmCommand("")
+	err := cmd.Decode("execute order 66")
+	suite.EqualError(err, "Unknown command 'execute order 66'. If specified, command must be upgrade, delete, lint, or help.")
+}