🌱 Improve Githubrepo Releases handler E2E tests (#3164)

- Add e2e test for githubrepo releases handler

Signed-off-by: naveensrinivasan <172697+naveensrinivasan@users.noreply.github.com>

clients/githubrepo/releases_e2e_test.go

@@ -0,0 +1,60 @@
+// Copyright 2023 OpenSSF Scorecard Authors
+//
+// 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 githubrepo
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/google/go-github/v38/github"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+
+	"github.com/ossf/scorecard/v4/clients"
+	"github.com/ossf/scorecard/v4/clients/githubrepo/roundtripper"
+	"github.com/ossf/scorecard/v4/log"
+)
+
+var _ = Describe("E2E TEST: githubrepo.releasesHandler", func() {
+	var releaseHandler *releasesHandler
+
+	BeforeEach(func() {
+		ctx := context.Background()
+		rt := roundtripper.NewTransport(context.Background(), &log.Logger{})
+		httpClient := &http.Client{
+			Transport: rt,
+		}
+		client := github.NewClient(httpClient)
+		releaseHandler = &releasesHandler{
+			client: client,
+			ctx:    ctx,
+		}
+	})
+	Context("getReleases()", func() {
+		It("returns releases", func() {
+			repoURL := repoURL{
+				owner:     "ossf",
+				repo:      "scorecard",
+				commitSHA: clients.HeadSHA,
+			}
+
+			releaseHandler.init(context.Background(), &repoURL)
+			resp, err := releaseHandler.getReleases()
+			Expect(err).NotTo(HaveOccurred())
+			Expect(len(resp)).ShouldNot(Equal(0))
+			Expect(releaseHandler.errSetup).Should(BeNil())
+		})
+	})
+})