1 files changed, 167 insertions, 0 deletions
diff --git a/spec/support/shared_examples/only_except_policy_examples.rb b/spec/support/shared_examples/only_except_policy_examples.rb
new file mode 100644
index 00000000000..35240af1d74
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+++ b/spec/support/shared_examples/only_except_policy_examples.rb
@@ -0,0 +1,167 @@
+# frozen_string_literal: true
+
+shared_examples 'correct only except policy' do
+  context 'when using simplified policy' do
+    describe 'validations' do
+      context 'when entry config value is valid' do
+        context 'when config is a branch or tag name' do
+          let(:config) { %w[master feature/branch] }
+
+          describe '#valid?' do
+            it 'is valid' do
+              expect(entry).to be_valid
+            end
+          end
+
+          describe '#value' do
+            it 'returns refs hash' do
+              expect(entry.value).to eq(refs: config)
+            end
+          end
+        end
+
+        context 'when config is a regexp' do
+          let(:config) { ['/^issue-.*$/'] }
+
+          describe '#valid?' do
+            it 'is valid' do
+              expect(entry).to be_valid
+            end
+          end
+        end
+
+        context 'when config is a special keyword' do
+          let(:config) { %w[tags triggers branches] }
+
+          describe '#valid?' do
+            it 'is valid' do
+              expect(entry).to be_valid
+            end
+          end
+        end
+      end
+
+      context 'when entry value is not valid' do
+        let(:config) { [1] }
+
+        describe '#errors' do
+          it 'saves errors' do
+            expect(entry.errors)
+              .to include /policy config should be an array of strings or regexps/
+          end
+        end
+      end
+    end
+  end
+
+  context 'when using complex policy' do
+    context 'when specifying refs policy' do
+      let(:config) { { refs: ['master'] } }
+
+      it 'is a correct configuraton' do
+        expect(entry).to be_valid
+        expect(entry.value).to eq(refs: %w[master])
+      end
+    end
+
+    context 'when specifying kubernetes policy' do
+      let(:config) { { kubernetes: 'active' } }
+
+      it 'is a correct configuraton' do
+        expect(entry).to be_valid
+        expect(entry.value).to eq(kubernetes: 'active')
+      end
+    end
+
+    context 'when specifying invalid kubernetes policy' do
+      let(:config) { { kubernetes: 'something' } }
+
+      it 'reports an error about invalid policy' do
+        expect(entry.errors).to include /unknown value: something/
+      end
+    end
+
+    context 'when specifying valid variables expressions policy' do
+      let(:config) { { variables: ['$VAR == null'] } }
+
+      it 'is a correct configuraton' do
+        expect(entry).to be_valid
+        expect(entry.value).to eq(config)
+      end
+    end
+
+    context 'when specifying variables expressions in invalid format' do
+      let(:config) { { variables: '$MY_VAR' } }
+
+      it 'reports an error about invalid format' do
+        expect(entry.errors).to include /should be an array of strings/
+      end
+    end
+
+    context 'when specifying invalid variables expressions statement' do
+      let(:config) { { variables: ['$MY_VAR =='] } }
+
+      it 'reports an error about invalid statement' do
+        expect(entry.errors).to include /invalid expression syntax/
+      end
+    end
+
+    context 'when specifying invalid variables expressions token' do
+      let(:config) { { variables: ['$MY_VAR == 123'] } }
+
+      it 'reports an error about invalid expression' do
+        expect(entry.errors).to include /invalid expression syntax/
+      end
+    end
+
+    context 'when using invalid variables expressions regexp' do
+      let(:config) { { variables: ['$MY_VAR =~ /some ( thing/'] } }
+
+      it 'reports an error about invalid expression' do
+        expect(entry.errors).to include /invalid expression syntax/
+      end
+    end
+
+    context 'when specifying a valid changes policy' do
+      let(:config) { { changes: %w[some/* paths/**/*.rb] } }
+
+      it 'is a correct configuraton' do
+        expect(entry).to be_valid
+        expect(entry.value).to eq(config)
+      end
+    end
+
+    context 'when changes policy is invalid' do
+      let(:config) { { changes: [1, 2] } }
+
+      it 'returns errors' do
+        expect(entry.errors).to include /changes should be an array of strings/
+      end
+    end
+
+    context 'when specifying unknown policy' do
+      let(:config) { { refs: ['master'], invalid: :something } }
+
+      it 'returns error about invalid key' do
+        expect(entry.errors).to include /unknown keys: invalid/
+      end
+    end
+
+    context 'when policy is empty' do
+      let(:config) { {} }
+
+      it 'is not a valid configuration' do
+        expect(entry.errors).to include /can't be blank/
+      end
+    end
+  end
+
+  context 'when policy strategy does not match' do
+    let(:config) { 'string strategy' }
+
+    it 'returns information about errors' do
+      expect(entry.errors)
+        .to include /has to be either an array of conditions or a hash/
+    end
+  end
+end