Merge pull request #30733 from asalkeld/compat-test

Automatic merge from submit-queue

Update scheduler config file compatibility tests

**What this PR does / why we need it**:
Added missing compatibility tests for scheduler config file options.

**Which issue this PR fixes** 
fixes #30099

**Special notes for your reviewer**:
I came up with the options based on the contents of default.go in each branch.

**Release note**:
```release-note
NONE
```

plugin/pkg/scheduler/factory/plugins.go

@@ -347,6 +347,28 @@ func validatePriorityOrDie(priority schedulerapi.PriorityPolicy) {
 	}
 }
 
+func ListRegisteredFitPredicates() []string {
+	schedulerFactoryMutex.Lock()
+	defer schedulerFactoryMutex.Unlock()
+
+	names := []string{}
+	for name := range fitPredicateMap {
+		names = append(names, name)
+	}
+	return names
+}
+
+func ListRegisteredPriorityFunctions() []string {
+	schedulerFactoryMutex.Lock()
+	defer schedulerFactoryMutex.Unlock()
+
+	names := []string{}
+	for name := range priorityFunctionMap {
+		names = append(names, name)
+	}
+	return names
+}
+
 // ListAlgorithmProviders is called when listing all available algorithm providers in `kube-scheduler --help`
 func ListAlgorithmProviders() string {
 	var availableAlgorithmProviders []string