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authorFlorian Dold <florian.dold@gmail.com>2017-08-14 05:01:11 +0200
committerFlorian Dold <florian.dold@gmail.com>2017-08-14 05:02:09 +0200
commit363723fc84f7b8477592e0105aeb331ec9a017af (patch)
tree29f92724f34131bac64d6a318dd7e30612e631c7 /node_modules/jest-diff/build/diffStrings.js
parent5634e77ad96bfe1818f6b6ee70b7379652e5487f (diff)
node_modules
Diffstat (limited to 'node_modules/jest-diff/build/diffStrings.js')
-rw-r--r--node_modules/jest-diff/build/diffStrings.js145
1 files changed, 0 insertions, 145 deletions
diff --git a/node_modules/jest-diff/build/diffStrings.js b/node_modules/jest-diff/build/diffStrings.js
deleted file mode 100644
index 6961ff801..000000000
--- a/node_modules/jest-diff/build/diffStrings.js
+++ /dev/null
@@ -1,145 +0,0 @@
-/**
- * Copyright (c) 2014, Facebook, Inc. All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- *
- */
-
-'use strict';
-
-const chalk = require('chalk');
-const diff = require('diff');var _require =
-
-require('./constants.js');const NO_DIFF_MESSAGE = _require.NO_DIFF_MESSAGE;
-const DIFF_CONTEXT = 5;
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-const getColor = (added, removed) =>
-added ?
-chalk.red :
-removed ? chalk.green : chalk.dim;
-
-const getBgColor = (added, removed) =>
-added ?
-chalk.bgRed :
-removed ? chalk.bgGreen : chalk.dim;
-
-const highlightTrailingWhitespace = (line, bgColor) =>
-line.replace(/\s+$/, bgColor('$&'));
-
-const getAnnotation = options =>
-chalk.green('- ' + (options && options.aAnnotation || 'Expected')) + '\n' +
-chalk.red('+ ' + (options && options.bAnnotation || 'Received')) + '\n\n';
-
-const diffLines = (a, b) => {
- let isDifferent = false;
- return {
- diff: diff.diffLines(a, b).map(part => {const
- added = part.added,removed = part.removed;
- if (part.added || part.removed) {
- isDifferent = true;
- }
-
- const lines = part.value.split('\n');
- const color = getColor(added, removed);
- const bgColor = getBgColor(added, removed);
-
- if (lines[lines.length - 1] === '') {
- lines.pop();
- }
-
- return lines.map(line => {
- const highlightedLine = highlightTrailingWhitespace(line, bgColor);
- const mark = color(part.added ? '+' : part.removed ? '-' : ' ');
- return mark + ' ' + color(highlightedLine) + '\n';
- }).join('');
- }).join('').trim(),
- isDifferent };
-
-};
-
-// Only show patch marks ("@@ ... @@") if the diff is big.
-// To determine this, we need to compare either the original string (a) to
-// `hunk.oldLines` or a new string to `hunk.newLines`.
-// If the `oldLinesCount` is greater than `hunk.oldLines`
-// we can be sure that at least 1 line has been "hidden".
-const shouldShowPatchMarks =
-(hunk, oldLinesCount) => oldLinesCount > hunk.oldLines;
-
-const createPatchMark = hunk => {
- const markOld = `-${hunk.oldStart},${hunk.oldLines}`;
- const markNew = `+${hunk.newStart},${hunk.newLines}`;
- return chalk.yellow(`@@ ${markOld} ${markNew} @@\n`);
-};
-
-const structuredPatch = (a, b) => {
- const options = { context: DIFF_CONTEXT };
- let isDifferent = false;
- // Make sure the strings end with a newline.
- if (!a.endsWith('\n')) {
- a += '\n';
- }
- if (!b.endsWith('\n')) {
- b += '\n';
- }
-
- const oldLinesCount = (a.match(/\n/g) || []).length;
-
- return {
- diff: diff.structuredPatch('', '', a, b, '', '', options).
- hunks.map(hunk => {
- const lines = hunk.lines.map(line => {
- const added = line[0] === '+';
- const removed = line[0] === '-';
-
- const color = getColor(added, removed);
- const bgColor = getBgColor(added, removed);
-
- const highlightedLine = highlightTrailingWhitespace(line, bgColor);
- return color(highlightedLine) + '\n';
- }).join('');
-
- isDifferent = true;
- return shouldShowPatchMarks(hunk, oldLinesCount) ?
- createPatchMark(hunk) + lines :
- lines;
- }).join('').trim(),
- isDifferent };
-
-};
-
-function diffStrings(a, b, options) {
- // `diff` uses the Myers LCS diff algorithm which runs in O(n+d^2) time
- // (where "d" is the edit distance) and can get very slow for large edit
- // distances. Mitigate the cost by switching to a lower-resolution diff
- // whenever linebreaks are involved.
- const result = options && options.expand === false ?
- structuredPatch(a, b) :
- diffLines(a, b);
-
- if (result.isDifferent) {
- return getAnnotation(options) + result.diff;
- } else {
- return NO_DIFF_MESSAGE;
- }
-}
-
-module.exports = diffStrings; \ No newline at end of file