test outdated version output

command/version_test.go

@@ -85,6 +85,29 @@ func TestVersion_flags(t *testing.T) {
 	}
 }
 
+func TestVersion_outdated(t *testing.T) {
+	ui := new(cli.MockUi)
+	m := Meta{
+		Ui: ui,
+	}
+
+	c := &VersionCommand{
+		Meta:      m,
+		Version:   "4.5.6",
+		CheckFunc: mockVersionCheckFunc(true, "4.5.7"),
+	}
+
+	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+	expected := "Terraform v4.5.6\n\nYour version of Terraform is out of date! The latest version\nis 4.5.7. You can update by downloading from https://www.terraform.io/downloads.html"
+	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)
@@ -150,3 +173,36 @@ func TestVersion_json(t *testing.T) {
 	}
 
 }
+
+func TestVersion_jsonoutdated(t *testing.T) {
+	ui := new(cli.MockUi)
+	m := Meta{
+		Ui: ui,
+	}
+
+	c := &VersionCommand{
+		Meta:      m,
+		Version:   "4.5.6",
+		CheckFunc: mockVersionCheckFunc(true, "4.5.7"),
+	}
+
+	if code := c.Run([]string{"-json"}); code != 0 {
+		t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
+	}
+
+	actual := strings.TrimSpace(ui.OutputWriter.String())
+	expected := "{\n  \"terraform_version\": \"4.5.6\",\n  \"terraform_revision\": \"\",\n  \"provider_selections\": {},\n  \"terraform_outdated\": true\n}"
+	if actual != expected {
+		t.Fatalf("wrong output\ngot: %#v\nwant: %#v", actual, expected)
+	}
+}
+
+func mockVersionCheckFunc(outdated bool, latest string) VersionCheckFunc {
+	return func() (VersionCheckInfo, error) {
+		return VersionCheckInfo{
+			Outdated: outdated,
+			Latest:   latest,
+			// Alerts is not used by version command
+		}, nil
+	}
+}