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SQLite-backed dotfiles manager for silly cats.
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import ( "bytes" "context" "errors" "testing"
"github.com/alyraffauf/cattery/internal/application/inspect" "github.com/alyraffauf/cattery/internal/failure" "github.com/spf13/cobra")
func TestDiffCommand(t *testing.T) { scenarios := []struct { name string run func(*testing.T) }{ {"flags and args mapped", testDiffFlags}, {"one call", testDiffOneCall}, {"output before difference", testDiffDifference}, {"service error", testDiffError}, {"writer failure", testDiffWriterError}, } for _, scenario := range scenarios { t.Run(scenario.name, scenario.run) }}
// diffServiceFake records requests and returns fixed results.type diffServiceFake struct { requests []inspect.Request result inspect.DiffResult err error}
func (f *diffServiceFake) Diff(ctx context.Context, request inspect.Request) (inspect.DiffResult, error) { f.requests = append(f.requests, request) return f.result, f.err}
// diffFixture builds one diff command over a recording service.func diffFixture(t *testing.T, service *diffServiceFake, options Options) (*cobra.Command, *bytes.Buffer) { t.Helper() stdout := &bytes.Buffer{} runtime := NewRuntime(RuntimeInput{Streams: Streams{Stdout: stdout}, WorkingDir: "/work"}) command := newDiffCommand(service, runtime, &options) bindSharedFlags(command, &options) return command, stdout}
func testDiffFlags(t *testing.T) { service := &diffServiceFake{result: diffResult()} command, _ := diffFixture(t, service, Options{}) command.SetArgs([]string{"-r", "repo", "apps"}) if err := command.Execute(); err != nil { t.Fatalf("run: %v", err) } request := service.requests[0] if request.Repository.RawExplicit != "repo" || !request.Repository.ExplicitSet { t.Fatalf("repository = %+v, want the flag value", request.Repository) } if len(request.Groups) != 1 || request.Groups[0] != "apps" { t.Fatalf("groups = %v, want the raw argument", request.Groups) }}
func testDiffOneCall(t *testing.T) { service := &diffServiceFake{result: diffResult()} command, _ := diffFixture(t, service, Options{}) if err := command.Execute(); err != nil { t.Fatalf("run: %v", err) } if len(service.requests) != 1 { t.Fatalf("calls = %d, want one", len(service.requests)) }}
func testDiffDifference(t *testing.T) { service := &diffServiceFake{result: diffResult(diffRecord(diffSpec{target: "a.conf", kind: inspect.StatusKindFile, tag: "none", action: "write-source"})), err: failure.New(failure.Difference, "diff: selected state is not converged", nil)} command, stdout := diffFixture(t, service, Options{}) err := command.Execute() if err == nil || !kindIs(err, failure.Difference) { t.Fatalf("error = %v, want a difference failure", err) } if !bytes.Contains(stdout.Bytes(), []byte("$HOME/a.conf")) { t.Fatalf("stdout = %q, want the records rendered before the difference", stdout.String()) }}
func testDiffError(t *testing.T) { service := &diffServiceFake{err: errors.New("broken")} command, stdout := diffFixture(t, service, Options{}) if err := command.Execute(); err == nil { t.Fatal("the service error must propagate") } if stdout.String() != "" { t.Fatalf("stdout = %q, want no render after an error", stdout.String()) }}
func testDiffWriterError(t *testing.T) { service := &diffServiceFake{result: diffResult()} runtime := NewRuntime(RuntimeInput{Streams: Streams{Stdout: failingWriter{}}, WorkingDir: "/work"}) command := newDiffCommand(service, runtime, &Options{}) if err := command.Execute(); err == nil { t.Fatal("a writer failure must surface") }}