views: Expand test coverage for views.Output
Now that the view code is separated, we can increase test coverage in unit tests. This commit moves some tests from the command package which were testing only view code, and adds more new test cases.
This commit is contained in:
Alisdair McDiarmid
parent
fa774dafc0
commit
96cf29111d
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@ -47,58 +47,6 @@ func TestOutput(t *testing.T) {
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}
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}
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func TestOutput_nestedListAndMap(t *testing.T) {
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originalState := states.BuildState(func(s *states.SyncState) {
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s.SetOutputValue(
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addrs.OutputValue{Name: "foo"}.Absolute(addrs.RootModuleInstance),
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cty.ListVal([]cty.Value{
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cty.MapVal(map[string]cty.Value{
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"key": cty.StringVal("value"),
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"key2": cty.StringVal("value2"),
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}),
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cty.MapVal(map[string]cty.Value{
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"key": cty.StringVal("value"),
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}),
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}),
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false,
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)
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})
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statePath := testStateFile(t, originalState)
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view, done := testView(t)
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c := &OutputCommand{
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Meta: Meta{
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testingOverrides: metaOverridesForProvider(testProvider()),
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View: view,
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},
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}
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args := []string{
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"-state", statePath,
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}
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code := c.Run(args)
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output := done(t)
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if code != 0 {
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t.Fatalf("bad: \n%s", output.Stderr())
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}
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actual := strings.TrimSpace(output.Stdout())
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expected := strings.TrimSpace(`
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foo = tolist([
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tomap({
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"key" = "value"
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"key2" = "value2"
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}),
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tomap({
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"key" = "value"
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}),
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])
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`)
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if actual != expected {
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t.Fatalf("wrong output\ngot: %s\nwant: %s", actual, expected)
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}
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}
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func TestOutput_json(t *testing.T) {
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originalState := states.BuildState(func(s *states.SyncState) {
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s.SetOutputValue(
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@ -163,36 +111,6 @@ func TestOutput_emptyOutputs(t *testing.T) {
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}
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}
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func TestOutput_jsonEmptyOutputs(t *testing.T) {
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originalState := states.NewState()
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statePath := testStateFile(t, originalState)
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p := testProvider()
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view, done := testView(t)
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c := &OutputCommand{
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Meta: Meta{
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testingOverrides: metaOverridesForProvider(p),
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View: view,
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},
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}
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args := []string{
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"-state", statePath,
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"-json",
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}
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code := c.Run(args)
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output := done(t)
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if code != 0 {
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t.Fatalf("bad: \n%s", output.Stderr())
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}
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actual := strings.TrimSpace(output.Stdout())
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expected := "{}"
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if actual != expected {
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t.Fatalf("bad:\n%#v\n%#v", expected, actual)
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}
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}
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func TestOutput_badVar(t *testing.T) {
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originalState := states.BuildState(func(s *states.SyncState) {
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s.SetOutputValue(
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@ -166,10 +166,9 @@ func (v *OutputRaw) Output(name string, outputs map[string]*states.OutputValue)
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return diags
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}
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// If we get out here then we should have a valid string to print.
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// We're writing it directly to the output here so that a shell caller
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// will get exactly the value and no extra whitespace.
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str := strV.AsString()
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fmt.Fprint(v.streams.Stdout.File, str)
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// We're writing it using Print here so that a shell caller will get
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// exactly the value and no extra whitespace (including trailing newline).
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v.streams.Print(strV.AsString())
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return nil
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}
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@ -1,13 +1,256 @@
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package views
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import (
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"strings"
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"testing"
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"github.com/hashicorp/terraform/command/arguments"
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"github.com/hashicorp/terraform/internal/terminal"
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"github.com/hashicorp/terraform/states"
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"github.com/zclconf/go-cty/cty"
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)
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// Test various single output values for human-readable UI. Note that since
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// OutputHuman defers to repl.FormatValue to render a single value, most of the
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// test coverage should be in that package.
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func TestOutputHuman_single(t *testing.T) {
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testCases := map[string]struct {
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value cty.Value
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want string
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wantErr bool
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}{
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"string": {
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value: cty.StringVal("hello"),
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want: "\"hello\"\n",
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},
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"list of maps": {
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value: cty.ListVal([]cty.Value{
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cty.MapVal(map[string]cty.Value{
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"key": cty.StringVal("value"),
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"key2": cty.StringVal("value2"),
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}),
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cty.MapVal(map[string]cty.Value{
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"key": cty.StringVal("value"),
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}),
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}),
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want: `tolist([
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tomap({
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"key" = "value"
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"key2" = "value2"
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}),
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tomap({
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"key" = "value"
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}),
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])
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`,
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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streams, done := terminal.StreamsForTesting(t)
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v := NewOutput(arguments.ViewHuman, NewView(streams))
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outputs := map[string]*states.OutputValue{
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"foo": {Value: tc.value},
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}
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diags := v.Output("foo", outputs)
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if diags.HasErrors() {
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if !tc.wantErr {
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t.Fatalf("unexpected diagnostics: %s", diags)
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}
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} else if tc.wantErr {
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t.Fatalf("succeeded, but want error")
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}
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if got, want := done(t).Stdout(), tc.want; got != want {
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t.Errorf("wrong result\ngot: %q\nwant: %q", got, want)
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}
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})
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}
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}
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// Sensitive output values are rendered to the console intentionally when
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// requesting a single output.
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func TestOutput_sensitive(t *testing.T) {
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testCases := map[string]arguments.ViewType{
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"human": arguments.ViewHuman,
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"json": arguments.ViewJSON,
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"raw": arguments.ViewRaw,
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}
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for name, vt := range testCases {
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t.Run(name, func(t *testing.T) {
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streams, done := terminal.StreamsForTesting(t)
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v := NewOutput(vt, NewView(streams))
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outputs := map[string]*states.OutputValue{
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"foo": {
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Value: cty.StringVal("secret"),
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Sensitive: true,
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},
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}
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diags := v.Output("foo", outputs)
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if diags.HasErrors() {
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t.Fatalf("unexpected diagnostics: %s", diags)
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}
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// Test for substring match here because we don't care about exact
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// output format in this test, just the presence of the sensitive
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// value.
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if got, want := done(t).Stdout(), "secret"; !strings.Contains(got, want) {
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t.Errorf("wrong result\ngot: %q\nwant: %q", got, want)
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}
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})
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}
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}
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// Showing all outputs is supported by human and JSON output format.
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func TestOutput_all(t *testing.T) {
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outputs := map[string]*states.OutputValue{
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"foo": {
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Value: cty.StringVal("secret"),
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Sensitive: true,
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},
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"bar": {
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Value: cty.ListVal([]cty.Value{cty.True, cty.False, cty.True}),
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},
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"baz": {
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Value: cty.ObjectVal(map[string]cty.Value{
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"boop": cty.NumberIntVal(5),
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"beep": cty.StringVal("true"),
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}),
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},
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}
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testCases := map[string]struct {
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vt arguments.ViewType
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want string
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}{
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"human": {
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arguments.ViewHuman,
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`bar = tolist([
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true,
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false,
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true,
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])
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baz = {
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"beep" = "true"
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"boop" = 5
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}
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foo = <sensitive>
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`,
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},
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"json": {
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arguments.ViewJSON,
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`{
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"bar": {
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"sensitive": false,
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"type": [
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"list",
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"bool"
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],
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"value": [
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true,
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false,
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true
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]
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},
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"baz": {
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"sensitive": false,
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"type": [
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"object",
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{
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"beep": "string",
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"boop": "number"
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}
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],
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"value": {
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"beep": "true",
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"boop": 5
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}
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},
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"foo": {
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"sensitive": true,
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"type": "string",
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"value": "secret"
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}
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}
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`,
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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streams, done := terminal.StreamsForTesting(t)
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v := NewOutput(tc.vt, NewView(streams))
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diags := v.Output("", outputs)
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if diags.HasErrors() {
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t.Fatalf("unexpected diagnostics: %s", diags)
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}
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if got := done(t).Stdout(); got != tc.want {
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t.Errorf("wrong result\ngot: %q\nwant: %q", got, tc.want)
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}
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})
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}
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}
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// JSON output format supports empty outputs by rendering an empty object
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// without diagnostics.
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func TestOutputJSON_empty(t *testing.T) {
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streams, done := terminal.StreamsForTesting(t)
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v := NewOutput(arguments.ViewJSON, NewView(streams))
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diags := v.Output("", map[string]*states.OutputValue{})
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if diags.HasErrors() {
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t.Fatalf("unexpected diagnostics: %s", diags)
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}
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if got, want := done(t).Stdout(), "{}\n"; got != want {
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t.Errorf("wrong result\ngot: %q\nwant: %q", got, want)
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}
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}
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// Human and raw formats render a warning if there are no outputs.
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func TestOutput_emptyWarning(t *testing.T) {
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testCases := map[string]arguments.ViewType{
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"human": arguments.ViewHuman,
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"raw": arguments.ViewRaw,
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}
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for name, vt := range testCases {
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t.Run(name, func(t *testing.T) {
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streams, done := terminal.StreamsForTesting(t)
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v := NewOutput(vt, NewView(streams))
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diags := v.Output("", map[string]*states.OutputValue{})
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if got, want := done(t).Stdout(), ""; got != want {
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t.Errorf("wrong result\ngot: %q\nwant: %q", got, want)
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}
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if len(diags) != 1 {
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t.Fatalf("expected 1 diagnostic, got %d", len(diags))
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}
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if diags.HasErrors() {
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t.Fatalf("unexpected error diagnostics: %s", diags)
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}
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if got, want := diags[0].Description().Summary, "No outputs found"; got != want {
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t.Errorf("unexpected diagnostics: %s", diags)
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}
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})
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}
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}
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// Raw output is a simple unquoted output format designed for shell scripts,
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// which relies on the cty.AsString() implementation. This test covers
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// formatting for supported value types.
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func TestOutputRaw(t *testing.T) {
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values := map[string]cty.Value{
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"str": cty.StringVal("bar"),
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@ -16,6 +259,7 @@ func TestOutputRaw(t *testing.T) {
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"bool": cty.True,
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"obj": cty.EmptyObjectVal,
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"null": cty.NullVal(cty.String),
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"unknown": cty.UnknownVal(cty.String),
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}
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tests := map[string]struct {
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@ -28,15 +272,13 @@ func TestOutputRaw(t *testing.T) {
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"bool": {WantOutput: "true"},
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"obj": {WantErr: true},
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"null": {WantErr: true},
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"unknown": {WantErr: true},
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}
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for name, test := range tests {
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t.Run(name, func(t *testing.T) {
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streams, done := terminal.StreamsForTesting(t)
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view := NewView(streams)
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v := &OutputRaw{
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View: *view,
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}
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v := NewOutput(arguments.ViewRaw, NewView(streams))
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value := values[name]
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outputs := map[string]*states.OutputValue{
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@ -58,3 +300,64 @@ func TestOutputRaw(t *testing.T) {
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})
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}
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}
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// Raw cannot render all outputs.
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func TestOutputRaw_all(t *testing.T) {
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streams, done := terminal.StreamsForTesting(t)
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v := NewOutput(arguments.ViewRaw, NewView(streams))
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outputs := map[string]*states.OutputValue{
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"foo": {Value: cty.StringVal("secret")},
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"bar": {Value: cty.True},
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}
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diags := v.Output("", outputs)
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if got, want := done(t).Stdout(), ""; got != want {
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t.Errorf("wrong result\ngot: %q\nwant: %q", got, want)
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}
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if !diags.HasErrors() {
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t.Fatalf("expected diagnostics, got %s", diags)
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}
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if got, want := diags.Err().Error(), "Raw output format is only supported for single outputs"; got != want {
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t.Errorf("unexpected diagnostics: %s", diags)
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}
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}
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// All outputs render an error if a specific output is requested which is
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// missing from the map of outputs.
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func TestOutput_missing(t *testing.T) {
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testCases := map[string]arguments.ViewType{
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"human": arguments.ViewHuman,
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"json": arguments.ViewJSON,
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"raw": arguments.ViewRaw,
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}
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for name, vt := range testCases {
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t.Run(name, func(t *testing.T) {
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streams, done := terminal.StreamsForTesting(t)
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v := NewOutput(vt, NewView(streams))
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diags := v.Output("foo", map[string]*states.OutputValue{
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"bar": {Value: cty.StringVal("boop")},
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})
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if len(diags) != 1 {
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t.Fatalf("expected 1 diagnostic, got %d", len(diags))
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}
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if !diags.HasErrors() {
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t.Fatalf("expected error diagnostics, got %s", diags)
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}
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if got, want := diags[0].Description().Summary, `Output "foo" not found`; got != want {
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t.Errorf("unexpected diagnostics: %s", diags)
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}
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if got, want := done(t).Stdout(), ""; got != want {
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t.Errorf("wrong result\ngot: %q\nwant: %q", got, want)
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}
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})
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}
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}
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