fixup no-diff tests to use expect.js for mochajs#2536

TwineHealth · Dec 12, 2017 · e8fb1b1 · e8fb1b1
1 parent 2f2b30b
commit e8fb1b1
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Showing 3 changed files with 28 additions and 11 deletions.
diff --git a/lib/reporters/base.js b/lib/reporters/base.js
@@ -208,11 +208,8 @@ exports.list = function (failures) {
     if (err.uncaught) {
       msg = 'Uncaught ' + msg;
     }
-
     // explicitly show diff
-    if (exports.hideDiff !== true && err.showDiff !== false && sameType(actual, expected) && expected !== undefined) {
-      escape = false;
-    if (showDiff(err)) {
+    if (!exports.hideDiff && showDiff(err)) {
       stringifyDiffObjs(err);
       fmt = color('error title', '  %s) %s:\n%s') + color('error stack', '\n%s\n');
       var match = message.match(/^([^:]+): expected/);

diff --git a/test/integration/no-diff.spec.js b/test/integration/no-diff.spec.js
@@ -4,11 +4,31 @@ var helpers = require('./helpers');
 var run = helpers.runMocha;
 
 describe('no-diff', function () {
-  it('should be honoured', function (done) {
-    run('no-diff.fixture.js', ['--no-diff'], function (err, res) {
-      res.output.should.not.match(/\+ expected/);
-      res.output.should.not.match(/- actual/);
-      done(err);
+  describe('when enabled', function () {
+    it('should not display a diff', function (done) {
+      run('no-diff.fixture.js', ['--no-diff'], function (err, res) {
+        if (err) {
+          done(err);
+          return;
+        }
+        expect(res.output).not.to.match(/\+ expected/);
+        expect(res.output).not.to.match(/- actual/);
+        done();
+      });
+    });
+  });
+
+  describe('when disabled', function () {
+    it('should display a diff', function (done) {
+      run('no-diff.fixture.js', ['--diff'], function (err, res) {
+        if (err) {
+          done(err);
+          return;
+        }
+        expect(res.output).to.match(/\+ expected/);
+        expect(res.output).to.match(/- actual/);
+        done();
+      });
     });
   });
 });
diff --git a/test/reporters/base.spec.js b/test/reporters/base.spec.js
@@ -108,8 +108,8 @@ describe('Base reporter', function () {
       Base.hideDiff = false; // Revert to original value
 
       errOut = stdout.join('\n');
-      errOut.should.not.match(/\- actual/);
-      errOut.should.not.match(/\+ expected/);
+      expect(errOut).to.not.match(/- actual/);
+      expect(errOut).to.not.match(/\+ expected/);
     });
   });