Add unit tests for pkg/utils/healthz

Author: timebertt

pkg/utils/healthz/cache_test.go

@@ -0,0 +1,43 @@
+/*
+Copyright 2025 Tim Ebert.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package healthz_test
+
+import (
+	"context"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+
+	. "github.com/timebertt/kubernetes-controller-sharding/pkg/utils/healthz"
+)
+
+var _ = Describe("CacheSync", func() {
+	It("should succeed if all informers sync", func() {
+		checker := CacheSync(fakeSyncWaiter(true))
+		Expect(checker(nil)).NotTo(HaveOccurred())
+	})
+	It("should fail if informers don't sync", func() {
+		checker := CacheSync(fakeSyncWaiter(false))
+		Expect(checker(nil)).To(MatchError(ContainSubstring("not synced")))
+	})
+})
+
+type fakeSyncWaiter bool
+
+func (f fakeSyncWaiter) WaitForCacheSync(_ context.Context) bool {
+	return bool(f)
+}

pkg/utils/healthz/healthz_suite_test.go

@@ -0,0 +1,29 @@
+/*
+Copyright 2025 Tim Ebert.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package healthz_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+)
+
+func TestHealthz(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Healthz Suite")
+}