Add logadapter tests

Author: navinms711

src/code.cloudfoundry.org/gorouter/logadapter/logadapter_suite_test.go

@@ -0,0 +1,13 @@
+package logadapter
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+)
+
+func TestLogger(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Log Adapter Suite")
+}

src/code.cloudfoundry.org/gorouter/logadapter/logadapter_test.go

@@ -0,0 +1,55 @@
+package logadapter
+
+import (
+	"log/slog"
+	"strings"
+	"testing"
+
+	"code.cloudfoundry.org/gorouter/test_util"
+	"code.cloudfoundry.org/lager/v3"
+	"github.com/onsi/gomega/gbytes"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+)
+
+func TestLogadapter(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "zapLevelSink Suite")
+}
+
+var _ = Describe("zapLevelSink using gbytes.Buffer", func() {
+	var (
+		testSink *test_util.TestSink
+		logger   *slog.Logger
+		sink     *zapLevelSink
+	)
+
+	BeforeEach(func() {
+		testSink = &test_util.TestSink{Buffer: gbytes.NewBuffer()}
+		handler := slog.NewTextHandler(testSink.Buffer, &slog.HandlerOptions{Level: slog.LevelDebug})
+		logger = slog.New(handler)
+		sink = NewZapLevelSink(logger)
+	})
+
+	Describe("NewZapLevelSink", func() {
+		It("should return a non-nil zapLevelSink", func() {
+			Expect(sink).ToNot(BeNil())
+			Expect(sink).To(BeAssignableToTypeOf(&zapLevelSink{}))
+		})
+
+		It("should embed the provided logger", func() {
+			Expect(sink.logger).To(Equal(logger))
+			Expect(sink.logger).To(BeAssignableToTypeOf(&slog.Logger{}))
+		})
+	})
+
+	Describe("SetMinLevel and LogLevel", func() {
+		It("should correctly store and retrieve min log level", func() {
+			lagerLogLevel, err := lager.LogLevelFromString(strings.ToLower(slog.LevelError.String()))
+			Expect(err).ToNot(HaveOccurred())
+			sink.SetMinLevel(lagerLogLevel)
+			Expect(sink.LogLevel()).To(Equal(lager.ERROR))
+		})
+	})
+})