tests: test the examples using local version of axe (#2309)

.circleci/config.yml

@@ -74,7 +74,7 @@ jobs:
       - checkout
       - <<: *restore_dependency_cache_unix
       - run: npm run test
-  
+
   # Run the test suite in IE in windows
   test_win:
     <<: *defaults
@@ -83,16 +83,16 @@ jobs:
       - checkout
       # npm i or restore cache
       - <<: *restore_dependency_cache_win
-      # install selenium 
+      # install selenium
       - run: |
           choco install selenium-ie-driver --version 3.141.5
           export PATH=/c/tools/selenium:$PATH
           echo $PATH
       # build `axe`
       - run: npm run build
       # get fixtures ready for running tests
-      - run: npx grunt testconfig	
-      - run: npx grunt fixture	
+      - run: npx grunt testconfig
+      - run: npx grunt fixture
       # run IE webdriver tests
       - run: npx grunt connect test-webdriver:ie
       # test examples
@@ -107,6 +107,7 @@ jobs:
     steps:
       - checkout
       - <<: *restore_dependency_cache_unix
+      - run: npm run build
       - run: npm run test:examples
 
   # Test locale files
@@ -191,7 +192,7 @@ workflows:
           requires:
             - dependencies_unix
             - lint
-      # Run IE/ Windows test on all commits 
+      # Run IE/ Windows test on all commits
       - test_win:
           requires:
             - dependencies_win

doc/examples/test-examples.js

@@ -8,8 +8,16 @@ const exampleDirs = readdirSync(__dirname)
 const config = { stdio: 'inherit', shell: true };
 
 // run npm install in parallel
-function install(dir) {
-	return execa('npm install', { cwd: dir, ...config });
+async function install(dir) {
+	await execa('npm install', { cwd: dir, ...config });
+
+	// override the package version of axe-core with the local version.
+	// this allows the examples to stay examples while allowing us to
+	// test them against our changes
+	return await execa('npm install --no-save file:..\\/..\\/..\\/', {
+		cwd: dir,
+		...config
+	});
 }
 
 // run tests synchronously so we can see which one threw an error