Add link_to_label helper

1 files changed, 66 insertions, 2 deletions

diff --git a/spec/helpers/labels_helper_spec.rb b/spec/helpers/labels_helper_spec.rb
index 0b7e3b1d11f..0c8d06b7059 100644
--- a/spec/helpers/labels_helper_spec.rb
+++ b/spec/helpers/labels_helper_spec.rb
@@ -1,6 +1,70 @@
 require 'spec_helper'
 
 describe LabelsHelper do
-  it { expect(text_color_for_bg('#EEEEEE')).to eq('#333333') }
-  it { expect(text_color_for_bg('#222E2E')).to eq('#FFFFFF') }
+  describe 'link_to_label' do
+    let(:project) { create(:empty_project) }
+    let(:label)   { create(:label, project: project) }
+
+    context 'with @project set' do
+      before do
+        @project = project
+      end
+
+      it 'uses the instance variable' do
+        expect(label).not_to receive(:project)
+        link_to_label(label)
+      end
+    end
+
+    context 'without @project set' do
+      it "uses the label's project" do
+        expect(label).to receive(:project).and_return(project)
+        link_to_label(label)
+      end
+    end
+
+    context 'with a named project argument' do
+      it 'uses the provided project' do
+        arg = double('project')
+        expect(arg).to receive(:namespace).and_return('foo')
+        expect(arg).to receive(:to_param).and_return('foo')
+
+        link_to_label(label, project: arg)
+      end
+
+      it 'takes precedence over other types' do
+        @project = project
+        expect(@project).not_to receive(:namespace)
+        expect(label).not_to receive(:project)
+
+        arg = double('project', namespace: 'foo', to_param: 'foo')
+        link_to_label(label, project: arg)
+      end
+    end
+
+    context 'with block' do
+      it 'passes the block to link_to' do
+        link = link_to_label(label) { 'Foo' }
+        expect(link).to match('Foo')
+      end
+    end
+
+    context 'without block' do
+      it 'uses render_colored_label as the link content' do
+        expect(self).to receive(:render_colored_label).
+          with(label).and_return('Foo')
+        expect(link_to_label(label)).to match('Foo')
+      end
+    end
+  end
+
+  describe 'text_color_for_bg' do
+    it 'uses light text on dark backgrounds' do
+      expect(text_color_for_bg('#222E2E')).to eq('#FFFFFF')
+    end
+
+    it 'uses dark text on light backgrounds' do
+      expect(text_color_for_bg('#EEEEEE')).to eq('#333333')
+    end
+  end
 end