feat(3143): Add regex and tests for a stage setup job (#573)

config/regex.js

@@ -119,5 +119,7 @@ module.exports = {
     // Provider Subnet ID. Can be subnet-xxxxxx, with A-Z,a-z,0-9,_
     SUBNET_ID: /^subnet-[\w]+$/,
     // Provider Role. Can be arn:aws:iam::xxxxxx:role/some-role
-    ROLE_ARN: /^arn:aws:iam::\d{12}:role\/.+/
+    ROLE_ARN: /^arn:aws:iam::\d{12}:role\/.+/,
+    // Stage setup pattern. Can be stage@stage-name:setup
+    STAGE_SETUP_PATTERN: /^stage@([\w-]+):setup$/
 };

test/config/regex.test.js

@@ -508,4 +508,20 @@ describe('config regex', () => {
             });
         });
     });
+
+    describe('stageSetup', () => {
+        const stageSetupRegex = config.regex.STAGE_SETUP_PATTERN;
+
+        it('matches valid stage setup jobs', () => {
+            ['stage@alpha:setup'].forEach(trigger => {
+                assert.isTrue(stageSetupRegex.test(trigger));
+            });
+        });
+
+        it('does not match invalid stage setup jobs', () => {
+            ['stage@alpha:teardown', 'alpha-deploy', 'alpha:setup', 'stage@setup'].forEach(trigger => {
+                assert.isFalse(stageSetupRegex.test(trigger));
+            });
+        });
+    });
 });