add test for terraform version

command/version_test.go

@@ -13,6 +13,54 @@ func TestVersionCommand_implements(t *testing.T) {
 	var _ cli.Command = &VersionCommand{}
 }
 
+func TestVersion(t *testing.T) {
+	fixtureDir := "testdata/providers-schema/basic"
+	td := tempDir(t)
+	copy.CopyDir(fixtureDir, td)
+	defer os.RemoveAll(td)
+	defer testChdir(t, td)()
+
+	ui := new(cli.MockUi)
+
+	providerSource, close := newMockProviderSource(t, map[string][]string{
+		"test": []string{"1.2.3"},
+	})
+	defer close()
+
+	m := Meta{
+		testingOverrides: metaOverridesForProvider(testProvider()),
+		Ui:               ui,
+		ProviderSource:   providerSource,
+	}
+
+	// `terrafrom init`
+	ic := &InitCommand{
+		Meta: m,
+	}
+	if code := ic.Run([]string{}); code != 0 {
+		t.Fatalf("init failed\n%s", ui.ErrorWriter)
+	}
+	// flush the init output from the mock ui
+	ui.OutputWriter.Reset()
+
+	// `terraform version`
+	c := &VersionCommand{
+		Meta:              m,
+		Version:           "4.5.6",
+		VersionPrerelease: "foo",
+	}
+	if code := c.Run([]string{}); code != 0 {
+		t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
+	}
+
+	actual := strings.TrimSpace(ui.OutputWriter.String())
+	expected := "Terraform v4.5.6-foo\n+ provider registry.terraform.io/hashicorp/test v1.2.3"
+	if actual != expected {
+		t.Fatalf("wrong output\ngot: %#v\nwant: %#v", actual, expected)
+	}
+
+}
+
 func TestVersion_json(t *testing.T) {
 	fixtureDir := "testdata/providers-schema/basic"
 	td := tempDir(t)