fix: [CDS-67745]: fix find user email api for bitbucket in go-scm

scm/driver/bitbucket/testdata/userEmail.json

@@ -0,0 +1,8 @@
+{
+  "Values": [
+    {
+      "email": "test@harness.io",
+      "is_primary": true
+    }
+  ]
+}

scm/driver/bitbucket/user.go

@@ -29,13 +29,24 @@ func (s *userService) FindLogin(ctx context.Context, login string) (*scm.User, *
 }
 
 func (s *userService) FindEmail(ctx context.Context) (string, *scm.Response, error) {
-	return "", nil, scm.ErrNotSupported
+    out := new(emails)
+    res, err := s.client.do(ctx, "GET", "2.0/user/emails", nil, &out)
+    return convertEmailList(out), res, err
 }
 
 func (s *userService) ListEmail(context.Context, scm.ListOptions) ([]*scm.Email, *scm.Response, error) {
 	return nil, nil, scm.ErrNotSupported
 }
 
+func convertEmailList(from *emails) string {
+	for _, v := range from.Values {
+		if v.IsPrimary == true {
+		return v.Email
+		}
+	}
+	return ""
+}
+
 type user struct {
 	// The `username` field is no longer available after 29 April 2019 in
 	// accordance with GDPR regulations. See:
@@ -53,6 +64,15 @@ type user struct {
 	UUID string `json:"uuid"`
 }
 
+type email struct {
+    Email string `json:"email"`
+    IsPrimary bool `json:"is_primary"`
+}
+
+type emails struct {
+    Values []*email `json:"values"`
+}
+
 func convertUser(from *user) *scm.User {
 	return &scm.User{
 		Avatar: fmt.Sprintf("https://bitbucket.org/account/%s/avatar/32/", from.Username),

scm/driver/bitbucket/user_test.go

@@ -67,9 +67,24 @@ func TestUserLoginFind(t *testing.T) {
 }
 
 func TestUserFindEmail(t *testing.T) {
+	defer gock.Off()
+
+	gock.New("https://api.bitbucket.org").
+		Get("/2.0/user/emails").
+		Reply(200).
+		Type("application/json").
+		File("testdata/userEmail.json")
+
 	client, _ := New("https://api.bitbucket.org")
-	_, _, err := client.Users.FindEmail(context.Background())
-	if err != scm.ErrNotSupported {
-		t.Errorf("Expect Not Supported error")
+	got, _, err := client.Users.FindEmail(context.Background())
+	if err != nil {
+		t.Error(err)
+	}
+
+	want := "test@harness.io"
+
+	if diff := cmp.Diff(got, want); diff != "" {
+		t.Errorf("Unexpected Results")
+		t.Log(diff)
 	}
 }