Return a FitError when PreFilter fails with unschedulable status

pkg/scheduler/testing/fake_plugins.go

@@ -123,3 +123,32 @@ func (pl *MatchFilterPlugin) Filter(_ context.Context, _ *framework.CycleState,
 func NewMatchFilterPlugin(_ runtime.Object, _ framework.FrameworkHandle) (framework.Plugin, error) {
 	return &MatchFilterPlugin{}, nil
 }
+
+// FakePreFilterPlugin is a test filter plugin.
+type FakePreFilterPlugin struct {
+	Status *framework.Status
+}
+
+// Name returns name of the plugin.
+func (pl *FakePreFilterPlugin) Name() string {
+	return "FakePreFilter"
+}
+
+// PreFilter invoked at the PreFilter extension point.
+func (pl *FakePreFilterPlugin) PreFilter(_ context.Context, _ *framework.CycleState, pod *v1.Pod) *framework.Status {
+	return pl.Status
+}
+
+// PreFilterExtensions no extensions implemented by this plugin.
+func (pl *FakePreFilterPlugin) PreFilterExtensions() framework.PreFilterExtensions {
+	return nil
+}
+
+// NewFakePreFilterPlugin initializes a fakePreFilterPlugin and returns it.
+func NewFakePreFilterPlugin(status *framework.Status) frameworkruntime.PluginFactory {
+	return func(_ runtime.Object, _ framework.FrameworkHandle) (framework.Plugin, error) {
+		return &FakePreFilterPlugin{
+			Status: status,
+		}, nil
+	}
+}

pkg/scheduler/testing/framework_helpers.go

@@ -42,6 +42,11 @@ func RegisterQueueSortPlugin(pluginName string, pluginNewFunc runtime.PluginFact
 	return RegisterPluginAsExtensions(pluginName, pluginNewFunc, "QueueSort")
 }
 
+// RegisterPreFilterPlugin returns a function to register a PreFilter Plugin to a given registry.
+func RegisterPreFilterPlugin(pluginName string, pluginNewFunc runtime.PluginFactory) RegisterPluginFunc {
+	return RegisterPluginAsExtensions(pluginName, pluginNewFunc, "PreFilter")
+}
+
 // RegisterFilterPlugin returns a function to register a Filter Plugin to a given registry.
 func RegisterFilterPlugin(pluginName string, pluginNewFunc runtime.PluginFactory) RegisterPluginFunc {
 	return RegisterPluginAsExtensions(pluginName, pluginNewFunc, "Filter")