fix: -x only support string

lib/cmd/cov.js

@@ -19,7 +19,7 @@ class CovCommand extends Command {
     this.options = {
       x: {
         description: 'istanbul coverage ignore, one or more fileset patterns',
-        type: 'array',
+        type: 'string',
       },
     };
 
@@ -43,17 +43,21 @@ class CovCommand extends Command {
     process.env.TMPDIR = tmpDir;
 
     // istanbul coverage ignore
-    const excludes = argv.x || (process.env.COV_EXCLUDES && process.env.COV_EXCLUDES.split(',')) || [];
+    if (argv.x) {
+      this[EXCLUDES].add(argv.x);
+      argv.x = undefined;
+    }
+    const excludes = (process.env.COV_EXCLUDES && process.env.COV_EXCLUDES.split(',')) || [];
     for (const exclude of excludes) {
       this[EXCLUDES].add(exclude);
     }
-    argv.x = undefined;
 
     const covFile = require.resolve('istanbul/lib/cli.js');
     const coverageDir = path.join(cwd, 'coverage');
     yield rimraf(coverageDir);
 
     const opt = {
+      cwd,
       execArgv,
       // resolve istanbul path for coffee
       env: Object.assign({
@@ -69,6 +73,7 @@ class CovCommand extends Command {
 
     // create coverage report
     const reportArgs = this.getReportArgs(coverageDir);
+    debug('reportArgs: %j', reportArgs);
     yield this.helper.forkNode(covFile, reportArgs, opt);
   }
 

test/fixtures/test-files/ignore/a.js

@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = '';

test/fixtures/test-files/test/ignore.test.js

@@ -0,0 +1,10 @@
+'use strict';
+
+const assert = require('assert');
+const a = require('../ignore/a');
+
+describe('ignore.test.js', () => {
+  it('should success', () => {
+    assert(a === '');
+  });
+});

test/lib/cmd/cov.test.js

@@ -25,7 +25,7 @@ describe('test/lib/cmd/cov.test.js', () => {
           .expect('stdout', /a\.test\.js/)
           .expect('stdout', /b\/b\.test\.js/)
           .notExpect('stdout', /a.js/)
-          .expect('stdout', /Statements {3}: 75% \( 3\/4 \)/)
+          .expect('stdout', /Statements {3}: 80% \( 4\/5 \)/)
           .expect('code', 0)
           .end(err => {
             assert.ifError(err);
@@ -37,27 +37,46 @@ describe('test/lib/cmd/cov.test.js', () => {
           });
       });
 
-      it('should success with COV_EXCLUDES', done => {
+      it('should success with COV_EXCLUDES', function* () {
         mm(process.env, 'TESTS', 'test/**/*.test.js');
-        mm(process.env, 'COV_EXCLUDES', 'lib/*');
-        coffee.fork(eggBin, [ 'cov' ], { cwd })
+        mm(process.env, 'COV_EXCLUDES', 'ignore/*');
+        yield coffee.fork(eggBin, [ 'cov' ], { cwd })
           .coverage(false)
           // .debug()
           .expect('stdout', /\/test\/fixtures\/test-files\/\.tmp true/)
           .expect('stdout', /should success/)
           .expect('stdout', /a\.test\.js/)
           .expect('stdout', /b\/b\.test\.js/)
           .notExpect('stdout', /a.js/)
-          .expect('stdout', /Statements {3}: Unknown% \( 0\/0 \)/)
+          .expect('stdout', /Statements {3}: 75% \( 3\/4 \)/)
           .expect('code', 0)
-          .end(err => {
-            assert(!err);
-            assert(fs.existsSync(path.join(cwd, 'coverage/coverage-final.json')));
-            assert(fs.existsSync(path.join(cwd, 'coverage/lcov-report/index.html')));
-            assert(fs.existsSync(path.join(cwd, 'coverage/lcov.info')));
-            assert(!fs.existsSync(path.join(cwd, '.tmp')));
-            done();
-          });
+          .end();
+        assert(fs.existsSync(path.join(cwd, 'coverage/coverage-final.json')));
+        assert(fs.existsSync(path.join(cwd, 'coverage/lcov-report/index.html')));
+        assert(fs.existsSync(path.join(cwd, 'coverage/lcov.info')));
+        assert(!fs.existsSync(path.join(cwd, '.tmp')));
+        const lcov = fs.readFileSync(path.join(cwd, 'coverage/lcov.info'), 'utf8');
+        assert(!/ignore\/a.js/.test(lcov));
+      });
+
+      it('should success with -x to ignore files', function* () {
+        yield coffee.fork(eggBin, [ 'cov', '-x', 'ignore/*', 'test/**/*.test.js' ], { cwd })
+          .coverage(false)
+          // .debug()
+          .expect('stdout', /\/test\/fixtures\/test-files\/\.tmp true/)
+          .expect('stdout', /should success/)
+          .expect('stdout', /a\.test\.js/)
+          .expect('stdout', /b\/b\.test\.js/)
+          .notExpect('stdout', /a.js/)
+          .expect('stdout', /Statements {3}: 75% \( 3\/4 \)/)
+          .expect('code', 0)
+          .end();
+        assert(fs.existsSync(path.join(cwd, 'coverage/coverage-final.json')));
+        assert(fs.existsSync(path.join(cwd, 'coverage/lcov-report/index.html')));
+        assert(fs.existsSync(path.join(cwd, 'coverage/lcov.info')));
+        assert(!fs.existsSync(path.join(cwd, '.tmp')));
+        const lcov = fs.readFileSync(path.join(cwd, 'coverage/lcov.info'), 'utf8');
+        assert(!/ignore\/a.js/.test(lcov));
       });
 
       it('should fail when test fail', done => {