Improve test coverage

lib/actions-util.test.js

@@ -315,7 +315,7 @@ on:
 `));
     t.deepEqual(errors, []);
 });
-ava_1.default("validateWorkflow() should only report the first CheckoutWrongHead", (t) => {
+ava_1.default("validateWorkflow() should only report the current job's CheckoutWrongHead", (t) => {
     process.env.GITHUB_JOB = "test";
     const errors = actionsutil.validateWorkflow(yaml.safeLoad(`
 name: "CodeQL"
@@ -335,9 +335,32 @@ jobs:
       - run: "git checkout HEAD^2"
 
   test3:
-    steps:
-      - run: "git checkout HEAD^2"
+    steps: []
 `));
     t.deepEqual(errors, [actionsutil.WorkflowErrors.CheckoutWrongHead]);
 });
+ava_1.default("validateWorkflow() should not report a different job's CheckoutWrongHead", (t) => {
+    process.env.GITHUB_JOB = "test3";
+    const errors = actionsutil.validateWorkflow(yaml.safeLoad(`
+name: "CodeQL"
+on:
+  push:
+    branches: [master]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [master]
+jobs:
+  test:
+    steps:
+      - run: "git checkout HEAD^2"
+
+  test2:
+    steps:
+      - run: "git checkout HEAD^2"
+
+  test3:
+    steps: []
+`));
+    t.deepEqual(errors, []);
+});
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