test: ajv transpile option

.travis.yml

@@ -0,0 +1,6 @@
+language: node_js
+node_js:
+  - "4"
+  - "6"
+after_script:
+  - coveralls < coverage/lcov.info

package.json

@@ -4,7 +4,9 @@
   "description": "Configure async validation mode in Ajv - JSON-Schema validator",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test-spec": "mocha spec/*.spec.js -R spec",
+    "test-cov": "nyc npm run test-spec",
+    "test": "npm run test-cov"
   },
   "repository": {
     "type": "git",
@@ -40,5 +42,20 @@
   },
   "dependencies": {
     "nodent": "^3.1.3"
+  },
+  "devDependencies": {
+    "mocha": "^4.0.1",
+    "nyc": "^11.3.0",
+    "pre-commit": "^1.2.2"
+  },
+  "nyc": {
+    "exclude": [
+      "**/spec/**",
+      "node_modules"
+    ],
+    "reporter": [
+      "lcov",
+      "text-summary"
+    ]
   }
 }

spec/transpile.spec.js

@@ -0,0 +1,45 @@
+'use strict';
+
+var Ajv = require('ajv');
+var setupAsync = require('../index.js');
+var assert = require('assert');
+
+
+describe('transpile option', function() {
+  var majorNodeVersion;
+  if (typeof process != 'undefined')
+    majorNodeVersion = +process.versions.node.split('.')[0];
+
+  it('should set processCode if async not supported', function() {
+    var ajv = setupAsync(new Ajv);
+    if (majorNodeVersion >= 7)
+      assert.strictEqual(ajv._opts.processCode, undefined);
+    else
+      assert.equal(typeof ajv._opts.processCode, 'function');
+  });
+
+  it('should always set processCode if transpile: true', function() {
+    var ajv = setupAsync(new Ajv({ transpile: true }));
+    assert.equal(typeof ajv._opts.processCode, 'function');
+  });
+
+  it('should throw error if async not supported and transpile: false', function() {
+    if (majorNodeVersion >= 7) assert.doesNotThrow(test);
+    else assert.throws(test, /async functions not supported/);
+
+    function test() {
+      setupAsync(new Ajv({ transpile: false }));
+    }
+  });
+
+  it('should throw error with unknown transpile option', function() {
+    test('nodent');
+    test({});
+
+    function test(transpile) {
+      assert.throws(function() {
+        setupAsync(new Ajv({ transpile: transpile }));
+      }, /transpile option must be boolean or undefined/);
+    }
+  });
+});