From bd1063a102aaec57be017290773d1f5813bfef90 Mon Sep 17 00:00:00 2001 From: Snider Date: Fri, 17 Apr 2026 19:21:53 +0100 Subject: [PATCH] Harden display API return semantics --- go.work.sum | 95 +++++++++++++++++++++++++++++++++++++++++ pkg/display/api.go | 4 +- pkg/display/api_test.go | 32 ++++++++++++++ pkg/display/display.go | 5 ++- 4 files changed, 133 insertions(+), 3 deletions(-) create mode 100644 go.work.sum diff --git a/go.work.sum b/go.work.sum new file mode 100644 index 00000000..46405b56 --- /dev/null +++ b/go.work.sum @@ -0,0 +1,95 @@ +cloud.google.com/go/compute/metadata v0.3.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k= +forge.lthn.ai/Snider/Borg v0.3.1/go.mod h1:Z7DJD0yHXsxSyM7Mjl6/g4gH1NBsIz44Bf5AFlV76Wg= +forge.lthn.ai/core/go-crypt v0.1.6/go.mod h1:4VZAGqxlbadhSB66sJkdj54/HSJ+bSxVgwWK5kMMYDo= +github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ= +github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53/go.mod 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6f185d44..89299c36 100644 --- a/pkg/display/api.go +++ b/pkg/display/api.go @@ -159,11 +159,11 @@ func (s *Service) GetScreenForWindow(name string) (*Screen, error) { func (s *Service) GetWorkAreas() []*WorkArea { r := s.Core().QUERY(screen.QueryWorkAreas{}) if !r.OK { - return nil + return []*WorkArea{} } areas, ok := r.Value.([]screen.Rect) if !ok { - return nil + return []*WorkArea{} } result := make([]*WorkArea, 0, len(areas)) for i := range areas { diff --git a/pkg/display/api_test.go b/pkg/display/api_test.go index 1358516d..169559f2 100644 --- a/pkg/display/api_test.go +++ b/pkg/display/api_test.go @@ -199,6 +199,23 @@ func TestDisplayAPI_GetScreens_Ugly(t *testing.T) { assert.Empty(t, screens) } +func TestDisplayAPI_GetWorkAreas_Ugly(t *testing.T) { + svc, c := newTestDisplayAPIService(t) + c.RegisterQuery(func(_ *core.Core, q core.Query) core.Result { + switch q.(type) { + case screen.QueryWorkAreas: + return core.Result{OK: false} + default: + return core.Result{} + } + }) + + areas := svc.GetWorkAreas() + + require.NotNil(t, areas) + assert.Empty(t, areas) +} + func TestDisplayAPI_GetScreen_BadType(t *testing.T) { svc, c := newTestDisplayAPIService(t) c.RegisterQuery(func(_ *core.Core, q core.Query) core.Result { @@ -216,6 +233,21 @@ func TestDisplayAPI_GetScreen_BadType(t *testing.T) { assert.Nil(t, got) } +func TestDisplayAPI_CreateWindow_UglyResultType(t *testing.T) { + svc, c := newTestDisplayAPIService(t) + c.Action("window.open", func(_ context.Context, _ core.Options) core.Result { + return core.Result{OK: true} + }) + + got, err := svc.CreateWindow(CreateWindowOptions{ + Name: "broken-window", + }) + + require.Error(t, err) + assert.Nil(t, got) + assert.Contains(t, err.Error(), "unexpected result type") +} + func TestDisplayAPI_GetScreen_Ugly(t *testing.T) { svc, c := newTestDisplayAPIService(t) c.RegisterQuery(func(_ *core.Core, q core.Query) core.Result { diff --git a/pkg/display/display.go b/pkg/display/display.go index 9b275c5f..10782301 100644 --- a/pkg/display/display.go +++ b/pkg/display/display.go @@ -1415,7 +1415,10 @@ func (s *Service) CreateWindow(options CreateWindowOptions) (*window.WindowInfo, } return nil, coreerr.E("display.CreateWindow", "window.open action failed", nil) } - info, _ := r.Value.(window.WindowInfo) + info, ok := r.Value.(window.WindowInfo) + if !ok { + return nil, coreerr.E("display.CreateWindow", "unexpected result type", nil) + } return &info, nil }