[#22] - use table test for set context tests

* Added a helper function InitContextConfig to setup actual and expected
configs
* used testutils.runTest
* added golden files with expected output

Change-Id: I720da38103354a8eb0665ec077529584581e6923

cmd/config/set_context_test.go

@@ -17,12 +17,10 @@ limitations under the License.
 package config
 
 import (
-	"bytes"
 	"fmt"
+	"strings"
 	"testing"
 
-	kubeconfig "k8s.io/client-go/tools/clientcmd/api"
-
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
@@ -32,16 +30,17 @@ import (
 )
 
 const (
-	testUser = "admin@kubernetes"
+	testUser         = "admin@kubernetes"
+	defaultManifest  = "edge_cloud"
+	defaultNamespace = "kube-system"
+	testManifest     = "test_manifest"
 )
 
 type setContextTest struct {
-	description    string
-	givenConfig    *config.Config
-	args           []string
-	flags          []string
-	expectedOutput string
-	expectedConfig *config.Config
+	givenConfig *config.Config
+	cmdTest     *testutil.CmdTest
+	contextName string
+	manifest    string
 }
 
 func TestConfigSetContext(t *testing.T) {
@@ -73,96 +72,56 @@ func TestSetContext(t *testing.T) {
 	given, cleanupGiven := config.InitConfig(t)
 	defer cleanupGiven(t)
 
-	tname := "dummycontext"
-	tctype := config.Ephemeral
-
-	expected, cleanupExpected := config.InitConfig(t)
-	defer cleanupExpected(t)
-
-	expected.Contexts[tname] = config.NewContext()
-	clusterName := config.NewClusterComplexName()
-	clusterName.WithType(tname, tctype)
-	expected.Contexts[tname].NameInKubeconf = clusterName.Name()
-	expected.Contexts[tname].Manifest = "edge_cloud"
-
-	expkContext := kubeconfig.NewContext()
-	expkContext.AuthInfo = testUser
-	expkContext.Namespace = "kube-system"
-	expected.KubeConfig().Contexts[expected.Contexts[tname].NameInKubeconf] = expkContext
-
-	test := setContextTest{
-		description: "Testing 'airshipctl config set-context' with a new context",
-		givenConfig: given,
-		args:        []string{tname},
-		flags: []string{
-			"--" + config.FlagClusterType + "=" + config.Target,
-			"--" + config.FlagAuthInfoName + "=" + testUser,
-			"--" + config.FlagManifest + "=edge_cloud",
-			"--" + config.FlagNamespace + "=kube-system",
+	tests := []struct {
+		testName    string
+		contextName string
+		flags       []string
+		givenConfig *config.Config
+		manifest    string
+	}{
+		{
+			testName:    "set-context",
+			contextName: "dummycontext",
+			flags: []string{
+				"--" + config.FlagClusterType + "=" + config.Target,
+				"--" + config.FlagAuthInfoName + "=" + testUser,
+				"--" + config.FlagManifest + "=" + defaultManifest,
+				"--" + config.FlagNamespace + "=" + defaultNamespace,
+			},
+			givenConfig: given,
+			manifest:    defaultManifest,
 		},
-		expectedOutput: fmt.Sprintf("Context %q created.\n", tname),
-		expectedConfig: expected,
-	}
-	test.run(t)
-}
-
-func TestSetCurrentContextNoOptions(t *testing.T) {
-	tname := "def_target"
-	given, cleanupGiven := config.InitConfig(t)
-	defer cleanupGiven(t)
-
-	expected, cleanupExpected := config.InitConfig(t)
-	defer cleanupExpected(t)
-
-	expected.CurrentContext = "def_target"
-
-	test := setContextTest{
-		givenConfig:    given,
-		args:           []string{tname},
-		expectedOutput: fmt.Sprintf("Context %q not modified. No new options provided.\n", tname),
-		expectedConfig: expected,
-	}
-	test.run(t)
-}
-
-func TestModifyContext(t *testing.T) {
-	tname := testCluster
-	tctype := config.Ephemeral
-
-	given, cleanupGiven := config.InitConfig(t)
-	defer cleanupGiven(t)
-
-	given.Contexts[testCluster] = config.NewContext()
-
-	clusterName := config.NewClusterComplexName()
-	clusterName.WithType(tname, tctype)
-	given.Contexts[tname].NameInKubeconf = clusterName.Name()
-	kContext := kubeconfig.NewContext()
-	kContext.AuthInfo = testUser
-	given.KubeConfig().Contexts[clusterName.Name()] = kContext
-	given.Contexts[tname].SetKubeContext(kContext)
-
-	expected, cleanupExpected := config.InitConfig(t)
-	defer cleanupExpected(t)
-
-	expected.Contexts[tname] = config.NewContext()
-	expected.Contexts[tname].NameInKubeconf = clusterName.Name()
-	expkContext := kubeconfig.NewContext()
-	expkContext.AuthInfo = testUser
-	expected.KubeConfig().Contexts[clusterName.Name()] = expkContext
-	expected.Contexts[tname].SetKubeContext(expkContext)
-
-	test := setContextTest{
-		description: "Testing 'airshipctl config set-context' with an existing context",
-		givenConfig: given,
-		args:        []string{tname},
-		flags: []string{
-			"--" + config.FlagAuthInfoName + "=" + testUser,
+		{
+			testName:    "set-current-context",
+			contextName: "def_target",
+			flags:       []string{},
+			givenConfig: given,
+		},
+		{
+			testName:    "modify-context",
+			contextName: "def_target",
+			flags: []string{
+				"--" + config.FlagManifest + "=" + testManifest,
+			},
+			givenConfig: given,
+			manifest:    testManifest,
 		},
-		expectedOutput: fmt.Sprintf("Context %q modified.\n", tname),
-		expectedConfig: expected,
 	}
-	test.run(t)
+
+	for _, tt := range tests {
+		tt := tt
+		cmd := &testutil.CmdTest{
+			Name:    tt.testName,
+			CmdLine: fmt.Sprintf("%s %s", tt.contextName, strings.Join(tt.flags, " ")),
+		}
+		test := setContextTest{
+			givenConfig: tt.givenConfig,
+			cmdTest:     cmd,
+			contextName: tt.contextName,
+			manifest:    tt.manifest,
+		}
+		test.run(t)
+	}
 }
 
 func (test setContextTest) run(t *testing.T) {
@@ -170,36 +129,20 @@ func (test setContextTest) run(t *testing.T) {
 	settings := &environment.AirshipCTLSettings{}
 	settings.SetConfig(test.givenConfig)
 
-	buf := bytes.NewBuffer([]byte{})
-
-	cmd := NewCmdConfigSetContext(settings)
-	cmd.SetOut(buf)
-	cmd.SetArgs(test.args)
-	err := cmd.Flags().Parse(test.flags)
-	require.NoErrorf(t, err, "unexpected error flags args to command: %v,  flags: %v", err, test.flags)
-
-	// Execute the Command
-	// Which should Persist the File
-	err = cmd.Execute()
-	require.NoErrorf(t, err, "unexpected error executing command: %v, args: %v, flags: %v", err, test.args, test.flags)
+	test.cmdTest.Cmd = NewCmdConfigSetContext(settings)
+	testutil.RunTest(t, test.cmdTest)
 
 	afterRunConf := settings.Config()
 
 	// Find the Context Created or Modified
-	afterRunContext, err := afterRunConf.GetContext(test.args[0])
+	afterRunContext, err := afterRunConf.GetContext(test.contextName)
 	require.NoError(t, err)
 	require.NotNil(t, afterRunContext)
 
 	afterKcontext := afterRunContext.KubeContext()
 	require.NotNil(t, afterKcontext)
 
-	testKcontext := test.expectedConfig.KubeConfig().Contexts[test.expectedConfig.Contexts[test.args[0]].NameInKubeconf]
-	require.NotNil(t, testKcontext)
-
-	assert.EqualValues(t, afterKcontext.AuthInfo, testKcontext.AuthInfo)
-
-	// Test that the Return Message looks correct
-	if len(test.expectedOutput) != 0 {
-		assert.EqualValues(t, test.expectedOutput, buf.String())
+	if test.manifest != "" {
+		assert.EqualValues(t, afterRunContext.Manifest, test.manifest)
 	}
 }

cmd/config/testdata/TestSetContextGoldenOutput/modify-context.golden

@@ -0,0 +1 @@
+Context "def_target" modified.

cmd/config/testdata/TestSetContextGoldenOutput/set-context.golden

@@ -0,0 +1 @@
+Context "dummycontext" created.

cmd/config/testdata/TestSetContextGoldenOutput/set-current-context.golden

@@ -0,0 +1 @@
+Context "def_target" not modified. No new options provided.