Get Project Branch API shows an helpful error message on invalid refname

In API v4 when requesting a branch with an invalid refname shows an
helpful error message: 'The branch refname is invalid'.

1 files changed, 36 insertions, 0 deletions

diff --git a/spec/requests/api/branches_spec.rb b/spec/requests/api/branches_spec.rb
index 16b12446ed4..e433597f58b 100644
--- a/spec/requests/api/branches_spec.rb
+++ b/spec/requests/api/branches_spec.rb
@@ -110,6 +110,15 @@ describe API::Branches do
         end
       end
 
+      context 'when the branch refname is invalid' do
+        let(:branch_name) { 'branch*' }
+        let(:message) { 'The branch refname is invalid' }
+
+        it_behaves_like '400 response' do
+          let(:request) { get api(route, current_user) }
+        end
+      end
+
       context 'when repository is disabled' do
         include_context 'disabled repository'
 
@@ -234,6 +243,15 @@ describe API::Branches do
         end
       end
 
+      context 'when the branch refname is invalid' do
+        let(:branch_name) { 'branch*' }
+        let(:message) { 'The branch refname is invalid' }
+
+        it_behaves_like '400 response' do
+          let(:request) { put api(route, current_user) }
+        end
+      end
+
       context 'when repository is disabled' do
         include_context 'disabled repository'
 
@@ -359,6 +377,15 @@ describe API::Branches do
         end
       end
 
+      context 'when the branch refname is invalid' do
+        let(:branch_name) { 'branch*' }
+        let(:message) { 'The branch refname is invalid' }
+
+        it_behaves_like '400 response' do
+          let(:request) { put api(route, current_user) }
+        end
+      end
+
       context 'when repository is disabled' do
         include_context 'disabled repository'
 
@@ -520,6 +547,15 @@ describe API::Branches do
       expect(response).to have_gitlab_http_status(404)
     end
 
+    context 'when the branch refname is invalid' do
+      let(:branch_name) { 'branch*' }
+      let(:message) { 'The branch refname is invalid' }
+
+      it_behaves_like '400 response' do
+        let(:request) { delete api("/projects/#{project.id}/repository/branches/#{branch_name}", user) }
+      end
+    end
+
     it_behaves_like '412 response' do
       let(:request) { api("/projects/#{project.id}/repository/branches/#{branch_name}", user) }
     end