Function TestActionCacheSaveWithContainerPinsOnly

pkg/workflow/action_cache_test.go:261–290

TestActionCacheSaveWithContainerPinsOnly verifies that a cache with no Entries but with ContainerPins is still written to disk (not treated as "empty").

(t *testing.T)

// TestActionCacheSaveWithContainerPinsOnly verifies that a cache with no Entries
// but with ContainerPins is still written to disk (not treated as "empty").
func TestActionCacheSaveWithContainerPinsOnly(t *testing.T) {
	tmpDir := testutil.TempDir(t, "test-*")
	cache := NewActionCache(tmpDir)

	// Add a container pin without any action entries
	cache.SetContainerPin("node:lts-alpine", "sha256:abc123", "node:lts-alpine@sha256:abc123")

	if err := cache.Save(); err != nil {
		t.Fatalf("Failed to save cache with container pins only: %v", err)
	}

	// File should exist because ContainerPins is non-empty
	cachePath := filepath.Join(tmpDir, ".github", "aw", CacheFileName)
	if _, err := os.Stat(cachePath); os.IsNotExist(err) {
		t.Error("Cache file should exist when ContainerPins is non-empty, even if Entries is empty")
	}

	// Reload and confirm the pin round-trips correctly
	reloaded := NewActionCache(tmpDir)
	if err := reloaded.Load(); err != nil {
		t.Fatalf("Failed to reload cache: %v", err)
	}
	pin, ok := reloaded.GetContainerPin("node:lts-alpine")
	if !ok {
		t.Fatal("Container pin should have been reloaded")
	}
	if pin.Digest != "sha256:abc123" {
		t.Errorf("Expected digest sha256:abc123, got %s", pin.Digest)
	}
}

// TestSetContainerPinEdgeCases verifies SetContainerPin behaviour with edge case inputs.
func TestSetContainerPinEdgeCases(t *testing.T) {