fix(babel-plugin-espower): do not include comments in one-line format…

… assertion

refs: avajs/ava#538

lib/babel-assertion-visitor.js

@@ -133,7 +133,7 @@ BabelAssertionVisitor.prototype.isGeneratedNode = function (nodePath) {
 // internal
 
 BabelAssertionVisitor.prototype.generateCanonicalCode = function (node) {
-    var gen = new babelgen.CodeGenerator(node, { concise: true });
+    var gen = new babelgen.CodeGenerator(node, { concise: true, comments: false });
     return gen.generate().code;
 };
 

test/fixtures/CommentsInAssertion/expected.js

@@ -0,0 +1,21 @@
+'use strict';
+
+var _powerAssertRecorder = function () { function PowerAssertRecorder() { this.captured = []; } PowerAssertRecorder.prototype._capt = function _capt(value, espath) { this.captured.push({ value: value, espath: espath }); return value; }; PowerAssertRecorder.prototype._expr = function _expr(value, source) { return { powerAssertContext: { value: value, events: this.captured }, source: source }; }; return PowerAssertRecorder; }(),
+    _rec = new _powerAssertRecorder(),
+    _rec2 = new _powerAssertRecorder();
+
+assert.equal(
+// first comment
+_rec._expr(_rec._capt(str, 'arguments/0'), {
+    content: 'assert.equal(str, anotherStr)',
+    filepath: 'test/fixtures/CommentsInAssertion/fixture.js',
+    line: 3
+}),
+// second comment
+_rec2._expr(_rec2._capt(anotherStr, 'arguments/1'), {
+    content: 'assert.equal(str, anotherStr)',
+    filepath: 'test/fixtures/CommentsInAssertion/fixture.js',
+    line: 3
+})
+// last comment
+);

test/fixtures/CommentsInAssertion/fixture.js

@@ -0,0 +1,9 @@
+'use strict';
+
+assert.equal(
+    // first comment
+    str,
+    // second comment
+    anotherStr
+    // last comment
+);

test/test.js

@@ -64,4 +64,5 @@ describe('babel-plugin-espower', function () {
             })
         ]
     });
+    testTransform('CommentsInAssertion');
 });