[CI-4621]: Added PR find and listCommits API support in go-scm

scm/driver/azure/integration/pr_test.go

@@ -40,3 +40,54 @@ func TestCreatePR(t *testing.T) {
 		t.Errorf("PullRequests.Create does not have the correct title %v", outputPR.Title)
 	}
 }
+
+func TestPullRequestFind(t *testing.T) {
+	if token == "" {
+		t.Skip("Skipping, Acceptance test")
+	}
+	client = azure.NewDefault(organization, project)
+	client.Client = &http.Client{
+		Transport: &transport.Custom{
+			Before: func(r *http.Request) {
+				r.Header.Set("Authorization", fmt.Sprintf("Basic %s", token))
+			},
+		},
+	}
+	outputPR, response, err := client.PullRequests.Find(context.Background(), repoID, 1)
+	if err != nil {
+		t.Errorf("PullRequests.Find got an error %v", err)
+	}
+	if response.Status != http.StatusOK {
+		t.Errorf("PullRequests.Find did not get a 200 back %v", response.Status)
+	}
+	if outputPR.Title != "test_pr" {
+		t.Errorf("PullRequests.Find does not have the correct title %v", outputPR.Title)
+	}
+}
+
+func TestPullRequestCommits(t *testing.T) {
+	if token == "" {
+		t.Skip("Skipping, Acceptance test")
+	}
+	client = azure.NewDefault(organization, project)
+	client.Client = &http.Client{
+		Transport: &transport.Custom{
+			Before: func(r *http.Request) {
+				r.Header.Set("Authorization", fmt.Sprintf("Basic %s", token))
+			},
+		},
+	}
+	commits, response, err := client.PullRequests.ListCommits(context.Background(), repoID, 1, scm.ListOptions{})
+	if err != nil {
+		t.Errorf("PullRequests.ListCommits got an error %v", err)
+	}
+	if response.Status != http.StatusOK {
+		t.Errorf("PullRequests.ListCommits did not get a 200 back %v", response.Status)
+	}
+	if len(commits) < 1 {
+		t.Errorf("PullRequests.ListCommits there should be at least 1 commit %d", len(commits))
+	}
+	if commits[0].Sha == "" {
+		t.Errorf("PullRequests.ListCommits first entry did not get a sha back %v", commits[0].Sha)
+	}
+}

scm/driver/azure/pr.go

@@ -17,7 +17,12 @@ type pullService struct {
 }
 
 func (s *pullService) Find(ctx context.Context, repo string, number int) (*scm.PullRequest, *scm.Response, error) {
-	return nil, nil, scm.ErrNotSupported
+	// https://docs.microsoft.com/en-us/rest/api/azure/devops/git/pull-requests/get-pull-request?view=azure-devops-rest-6.0
+	endpoint := fmt.Sprintf("%s/%s/_apis/git/repositories/%s/pullrequests/%d?api-version=6.0", 
+	s.client.owner, s.client.project, repo, number)
+	out := new(pr)
+	res, err := s.client.do(ctx, "GET", endpoint, nil, out)
+	return convertPullRequest(out), res, err
 }
 
 func (s *pullService) List(ctx context.Context, repo string, opts scm.PullRequestListOptions) ([]*scm.PullRequest, *scm.Response, error) {
@@ -29,7 +34,12 @@ func (s *pullService) ListChanges(ctx context.Context, repo string, number int,
 }
 
 func (s *pullService) ListCommits(ctx context.Context, repo string, number int, opts scm.ListOptions) ([]*scm.Commit, *scm.Response, error) {
-	return nil, nil, scm.ErrNotSupported
+	// https://docs.microsoft.com/en-us/rest/api/azure/devops/git/pull-request-commits/get-pull-request-commits?view=azure-devops-rest-6.0
+	endpoint := fmt.Sprintf("%s/%s/_apis/git/repositories/%s/pullRequests/%d/commits?api-version=6.0", 
+	s.client.owner, s.client.project, repo, number)
+	out := new(commitList)
+	res, err := s.client.do(ctx, "GET", endpoint, nil, out)
+	return convertCommitList(out.Value), res, err
 }
 
 func (s *pullService) Merge(ctx context.Context, repo string, number int) (*scm.Response, error) {

scm/driver/azure/pr_test.go

@@ -48,3 +48,56 @@ func TestPullCreate(t *testing.T) {
 		t.Log(diff)
 	}
 }
+
+func TestPullFind(t *testing.T) {
+	defer gock.Off()
+
+	gock.New("https:/dev.azure.com/").
+		Get("/ORG/PROJ/_apis/git/repositories/REPOID/pullrequests/1").
+		Reply(200).
+		Type("application/json").
+		File("testdata/pr.json")
+
+
+	client := NewDefault("ORG", "PROJ")
+	got, _, err := client.PullRequests.Find(context.Background(), "REPOID", 1)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	want := new(scm.PullRequest)
+	raw, _ := ioutil.ReadFile("testdata/pr.json.golden")
+	_ = json.Unmarshal(raw, want)
+
+	if diff := cmp.Diff(got, want); diff != "" {
+		t.Errorf("Unexpected Results")
+		t.Log(diff)
+	}
+}
+
+func TestPullListCommits(t *testing.T) {
+	defer gock.Off()
+
+	gock.New("https:/dev.azure.com/").
+		Get("/ORG/PROJ/_apis/git/repositories/REPOID/pullRequests/1/commits").
+		Reply(200).
+		Type("application/json").
+		File("testdata/commits.json")
+
+	client := NewDefault("ORG", "PROJ")
+	got, _, err := client.PullRequests.ListCommits(context.Background(), "REPOID", 1, scm.ListOptions{})
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	want := []*scm.Commit{}
+	raw, _ := ioutil.ReadFile("testdata/commits.json.golden")
+	_ = json.Unmarshal(raw, &want)
+
+	if diff := cmp.Diff(got, want); diff != "" {
+		t.Errorf("Unexpected Results")
+		t.Log(diff)
+	}
+}