feat(power-assert-formatter): outputOffset option to configure number…

… of spaces inserted at the left
power-assert-js · Oct 23, 2014 · d646aa8 · d646aa8
1 parent 635bb96
commit d646aa8
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Showing 3 changed files with 65 additions and 1 deletion.
diff --git a/lib/default-options.js b/lib/default-options.js
@@ -3,6 +3,7 @@ module.exports = function defaultOptions () {
  return {
  lineDiffThreshold: 5,
  maxDepth: 1,
+ outputOffset: 0,
  anonymous: 'Object',
  circular: '#@Circular#',
  lineSeparator: '\n',

diff --git a/lib/string-writer.js b/lib/string-writer.js
@@ -1,12 +1,22 @@
 'use strict';
 
+function spacerStr (len) {
+ var str = '';
+ for(var i = 0; i < len; i += 1) {
+ str += ' ';
+ }
+ return str;
+}
+
 function StringWriter (config) {
  this.lines = [];
  this.lineSeparator = config.lineSeparator;
+ this.regex = new RegExp(this.lineSeparator, 'g');
+ this.spacer = spacerStr(config.outputOffset);
 }
 
 StringWriter.prototype.write = function (str) {
- this.lines.push(str);
+ this.lines.push(this.spacer + str.replace(this.regex, this.lineSeparator + this.spacer));
 };
 
 StringWriter.prototype.flush = function () {

diff --git a/test/options_test.js b/test/options_test.js
@@ -43,6 +43,59 @@ suite('lineSeparator option', function () {
  lineSeparatorTest('CRLF', {lineSeparator: '\r\n'}, '\r\n');
 });
 
+
+suite('outputOffset option', function () {
+ function outputOffsetCustomizationTest (option, expectedLines) {
+ var assert = empower(baseAssert, createFormatter(option));
+ test(JSON.stringify(option), function () {
+ var hoge = 'foo';
+ var fuga = 'bar';
+ try {
+ eval(weave('assert.ok(hoge === fuga, "comment");'));
+ } catch (e) {
+ baseAssert.equal(e.name, 'AssertionError');
+ var actual = e.message.split(createFormatter.defaultOptions().lineSeparator);
+ baseAssert.deepEqual(actual, expectedLines);
+ }
+ });
+ }
+ outputOffsetCustomizationTest({outputOffset: 1}, [
+ 'comment # /path/to/some_test.js:1',
+ ' ',
+ ' assert.ok(hoge === fuga, "comment")',
+ ' | | | ',
+ ' | | "bar" ',
+ ' | false ',
+ ' "foo" ',
+ ' ',
+ ' --- [string] fuga',
+ ' +++ [string] hoge',
+ ' @@ -1,3 +1,3 @@',
+ ' -bar',
+ ' +foo',
+ ' ',
+ ' '
+ ]);
+ outputOffsetCustomizationTest({outputOffset: 3}, [
+ 'comment # /path/to/some_test.js:1',
+ ' ',
+ ' assert.ok(hoge === fuga, "comment")',
+ ' | | | ',
+ ' | | "bar" ',
+ ' | false ',
+ ' "foo" ',
+ ' ',
+ ' --- [string] fuga',
+ ' +++ [string] hoge',
+ ' @@ -1,3 +1,3 @@',
+ ' -bar',
+ ' +foo',
+ ' ',
+ ' '
+ ]);
+});
+
+
 suite('renderers customization', function () {
  function rendererCustomizationTest (name, option, expectedLines) {
  var assert = empower(baseAssert, createFormatter(option));