add test for unsupported keys in bundle loader

pkg/loader/bundle/bundle_test.go

@@ -0,0 +1,87 @@
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package bundle
+
+import (
+	"reflect"
+	"strings"
+	"testing"
+)
+
+// TestUnsupportedKeys test checkUnsupportedKey function with various
+// docker-compose projects
+func TestUnsupportedKeys(t *testing.T) {
+	user := "user"
+	workDir := "workDir"
+
+	fullBundle := Bundlefile{
+		Version: "0.1",
+		Services: map[string]Service{
+			"foo": Service{
+				Image:      "image",
+				Command:    []string{"cmd"},
+				Args:       []string{"arg"},
+				Env:        []string{"env"},
+				Labels:     map[string]string{"key": "value"},
+				Ports:      []Port{Port{Protocol: "tcp", Port: uint32(80)}},
+				WorkingDir: &workDir, //there is no other way to get pointer to string
+				User:       &user,
+				Networks:   []string{"net"},
+			},
+		},
+	}
+
+	bundleWithEmptyNetworks := Bundlefile{
+		Version: "0.1",
+		Services: map[string]Service{
+			"foo": Service{
+				Image:      "image",
+				Command:    []string{"cmd"},
+				Args:       []string{"arg"},
+				Env:        []string{"env"},
+				Labels:     map[string]string{"key": "value"},
+				Ports:      []Port{Port{Protocol: "tcp", Port: uint32(80)}},
+				WorkingDir: &workDir, //there is no other way to get pointer to string
+				User:       &user,
+				Networks:   []string{},
+			},
+		},
+	}
+	// define all test cases for checkUnsupportedKey function
+	testCases := map[string]struct {
+		bundleFile              Bundlefile
+		expectedUnsupportedKeys []string
+	}{
+		"Full Bundle": {
+			fullBundle,
+			[]string{"Networks"},
+		},
+		"Bundle with empty Networks": {
+			bundleWithEmptyNetworks,
+			[]string(nil),
+		},
+	}
+
+	for name, test := range testCases {
+		t.Log("Test case:", name)
+		keys := checkUnsupportedKey(&test.bundleFile)
+		if !reflect.DeepEqual(keys, test.expectedUnsupportedKeys) {
+			t.Errorf("ERROR: Expecting unsupported keys: ['%s']. Got: ['%s']", strings.Join(test.expectedUnsupportedKeys, "', '"), strings.Join(keys, "', '"))
+		}
+	}
+
+}