wrangler-action/node_modules/@vitest/utils/dist/diff.js
2023-08-07 15:11:15 -05:00

1072 lines
34 KiB
JavaScript

import { format, plugins } from 'pretty-format';
import * as diff$1 from 'diff-sequences';
import { b as getColors } from './chunk-colors.js';
function getType(value) {
if (value === void 0) {
return "undefined";
} else if (value === null) {
return "null";
} else if (Array.isArray(value)) {
return "array";
} else if (typeof value === "boolean") {
return "boolean";
} else if (typeof value === "function") {
return "function";
} else if (typeof value === "number") {
return "number";
} else if (typeof value === "string") {
return "string";
} else if (typeof value === "bigint") {
return "bigint";
} else if (typeof value === "object") {
if (value != null) {
if (value.constructor === RegExp)
return "regexp";
else if (value.constructor === Map)
return "map";
else if (value.constructor === Set)
return "set";
else if (value.constructor === Date)
return "date";
}
return "object";
} else if (typeof value === "symbol") {
return "symbol";
}
throw new Error(`value of unknown type: ${value}`);
}
const DIFF_DELETE = -1;
const DIFF_INSERT = 1;
const DIFF_EQUAL = 0;
class Diff {
0;
1;
constructor(op, text) {
this[0] = op;
this[1] = text;
}
}
const diff_commonPrefix = function(text1, text2) {
if (!text1 || !text2 || text1.charAt(0) !== text2.charAt(0))
return 0;
let pointermin = 0;
let pointermax = Math.min(text1.length, text2.length);
let pointermid = pointermax;
let pointerstart = 0;
while (pointermin < pointermid) {
if (text1.substring(pointerstart, pointermid) === text2.substring(pointerstart, pointermid)) {
pointermin = pointermid;
pointerstart = pointermin;
} else {
pointermax = pointermid;
}
pointermid = Math.floor((pointermax - pointermin) / 2 + pointermin);
}
return pointermid;
};
const diff_commonSuffix = function(text1, text2) {
if (!text1 || !text2 || text1.charAt(text1.length - 1) !== text2.charAt(text2.length - 1))
return 0;
let pointermin = 0;
let pointermax = Math.min(text1.length, text2.length);
let pointermid = pointermax;
let pointerend = 0;
while (pointermin < pointermid) {
if (text1.substring(text1.length - pointermid, text1.length - pointerend) === text2.substring(text2.length - pointermid, text2.length - pointerend)) {
pointermin = pointermid;
pointerend = pointermin;
} else {
pointermax = pointermid;
}
pointermid = Math.floor((pointermax - pointermin) / 2 + pointermin);
}
return pointermid;
};
const diff_commonOverlap_ = function(text1, text2) {
const text1_length = text1.length;
const text2_length = text2.length;
if (text1_length === 0 || text2_length === 0)
return 0;
if (text1_length > text2_length)
text1 = text1.substring(text1_length - text2_length);
else if (text1_length < text2_length)
text2 = text2.substring(0, text1_length);
const text_length = Math.min(text1_length, text2_length);
if (text1 === text2)
return text_length;
let best = 0;
let length = 1;
while (true) {
const pattern = text1.substring(text_length - length);
const found = text2.indexOf(pattern);
if (found === -1)
return best;
length += found;
if (found === 0 || text1.substring(text_length - length) === text2.substring(0, length)) {
best = length;
length++;
}
}
};
const diff_cleanupSemantic = function(diffs) {
let changes = false;
const equalities = [];
let equalitiesLength = 0;
let lastEquality = null;
let pointer = 0;
let length_insertions1 = 0;
let length_deletions1 = 0;
let length_insertions2 = 0;
let length_deletions2 = 0;
while (pointer < diffs.length) {
if (diffs[pointer][0] === DIFF_EQUAL) {
equalities[equalitiesLength++] = pointer;
length_insertions1 = length_insertions2;
length_deletions1 = length_deletions2;
length_insertions2 = 0;
length_deletions2 = 0;
lastEquality = diffs[pointer][1];
} else {
if (diffs[pointer][0] === DIFF_INSERT)
length_insertions2 += diffs[pointer][1].length;
else
length_deletions2 += diffs[pointer][1].length;
if (lastEquality && lastEquality.length <= Math.max(length_insertions1, length_deletions1) && lastEquality.length <= Math.max(
length_insertions2,
length_deletions2
)) {
diffs.splice(
equalities[equalitiesLength - 1],
0,
new Diff(DIFF_DELETE, lastEquality)
);
diffs[equalities[equalitiesLength - 1] + 1][0] = DIFF_INSERT;
equalitiesLength--;
equalitiesLength--;
pointer = equalitiesLength > 0 ? equalities[equalitiesLength - 1] : -1;
length_insertions1 = 0;
length_deletions1 = 0;
length_insertions2 = 0;
length_deletions2 = 0;
lastEquality = null;
changes = true;
}
}
pointer++;
}
if (changes)
diff_cleanupMerge(diffs);
diff_cleanupSemanticLossless(diffs);
pointer = 1;
while (pointer < diffs.length) {
if (diffs[pointer - 1][0] === DIFF_DELETE && diffs[pointer][0] === DIFF_INSERT) {
const deletion = diffs[pointer - 1][1];
const insertion = diffs[pointer][1];
const overlap_length1 = diff_commonOverlap_(deletion, insertion);
const overlap_length2 = diff_commonOverlap_(insertion, deletion);
if (overlap_length1 >= overlap_length2) {
if (overlap_length1 >= deletion.length / 2 || overlap_length1 >= insertion.length / 2) {
diffs.splice(pointer, 0, new Diff(
DIFF_EQUAL,
insertion.substring(0, overlap_length1)
));
diffs[pointer - 1][1] = deletion.substring(0, deletion.length - overlap_length1);
diffs[pointer + 1][1] = insertion.substring(overlap_length1);
pointer++;
}
} else {
if (overlap_length2 >= deletion.length / 2 || overlap_length2 >= insertion.length / 2) {
diffs.splice(pointer, 0, new Diff(
DIFF_EQUAL,
deletion.substring(0, overlap_length2)
));
diffs[pointer - 1][0] = DIFF_INSERT;
diffs[pointer - 1][1] = insertion.substring(0, insertion.length - overlap_length2);
diffs[pointer + 1][0] = DIFF_DELETE;
diffs[pointer + 1][1] = deletion.substring(overlap_length2);
pointer++;
}
}
pointer++;
}
pointer++;
}
};
const nonAlphaNumericRegex_ = /[^a-zA-Z0-9]/;
const whitespaceRegex_ = /\s/;
const linebreakRegex_ = /[\r\n]/;
const blanklineEndRegex_ = /\n\r?\n$/;
const blanklineStartRegex_ = /^\r?\n\r?\n/;
function diff_cleanupSemanticLossless(diffs) {
function diff_cleanupSemanticScore_(one, two) {
if (!one || !two) {
return 6;
}
const char1 = one.charAt(one.length - 1);
const char2 = two.charAt(0);
const nonAlphaNumeric1 = char1.match(nonAlphaNumericRegex_);
const nonAlphaNumeric2 = char2.match(nonAlphaNumericRegex_);
const whitespace1 = nonAlphaNumeric1 && char1.match(whitespaceRegex_);
const whitespace2 = nonAlphaNumeric2 && char2.match(whitespaceRegex_);
const lineBreak1 = whitespace1 && char1.match(linebreakRegex_);
const lineBreak2 = whitespace2 && char2.match(linebreakRegex_);
const blankLine1 = lineBreak1 && one.match(blanklineEndRegex_);
const blankLine2 = lineBreak2 && two.match(blanklineStartRegex_);
if (blankLine1 || blankLine2) {
return 5;
} else if (lineBreak1 || lineBreak2) {
return 4;
} else if (nonAlphaNumeric1 && !whitespace1 && whitespace2) {
return 3;
} else if (whitespace1 || whitespace2) {
return 2;
} else if (nonAlphaNumeric1 || nonAlphaNumeric2) {
return 1;
}
return 0;
}
let pointer = 1;
while (pointer < diffs.length - 1) {
if (diffs[pointer - 1][0] === DIFF_EQUAL && diffs[pointer + 1][0] === DIFF_EQUAL) {
let equality1 = diffs[pointer - 1][1];
let edit = diffs[pointer][1];
let equality2 = diffs[pointer + 1][1];
const commonOffset = diff_commonSuffix(equality1, edit);
if (commonOffset) {
const commonString = edit.substring(edit.length - commonOffset);
equality1 = equality1.substring(0, equality1.length - commonOffset);
edit = commonString + edit.substring(0, edit.length - commonOffset);
equality2 = commonString + equality2;
}
let bestEquality1 = equality1;
let bestEdit = edit;
let bestEquality2 = equality2;
let bestScore = diff_cleanupSemanticScore_(equality1, edit) + diff_cleanupSemanticScore_(edit, equality2);
while (edit.charAt(0) === equality2.charAt(0)) {
equality1 += edit.charAt(0);
edit = edit.substring(1) + equality2.charAt(0);
equality2 = equality2.substring(1);
const score = diff_cleanupSemanticScore_(equality1, edit) + diff_cleanupSemanticScore_(edit, equality2);
if (score >= bestScore) {
bestScore = score;
bestEquality1 = equality1;
bestEdit = edit;
bestEquality2 = equality2;
}
}
if (diffs[pointer - 1][1] !== bestEquality1) {
if (bestEquality1) {
diffs[pointer - 1][1] = bestEquality1;
} else {
diffs.splice(pointer - 1, 1);
pointer--;
}
diffs[pointer][1] = bestEdit;
if (bestEquality2) {
diffs[pointer + 1][1] = bestEquality2;
} else {
diffs.splice(pointer + 1, 1);
pointer--;
}
}
}
pointer++;
}
}
function diff_cleanupMerge(diffs) {
diffs.push(new Diff(DIFF_EQUAL, ""));
let pointer = 0;
let count_delete = 0;
let count_insert = 0;
let text_delete = "";
let text_insert = "";
let commonlength;
while (pointer < diffs.length) {
switch (diffs[pointer][0]) {
case DIFF_INSERT:
count_insert++;
text_insert += diffs[pointer][1];
pointer++;
break;
case DIFF_DELETE:
count_delete++;
text_delete += diffs[pointer][1];
pointer++;
break;
case DIFF_EQUAL:
if (count_delete + count_insert > 1) {
if (count_delete !== 0 && count_insert !== 0) {
commonlength = diff_commonPrefix(text_insert, text_delete);
if (commonlength !== 0) {
if (pointer - count_delete - count_insert > 0 && diffs[pointer - count_delete - count_insert - 1][0] === DIFF_EQUAL) {
diffs[pointer - count_delete - count_insert - 1][1] += text_insert.substring(0, commonlength);
} else {
diffs.splice(0, 0, new Diff(
DIFF_EQUAL,
text_insert.substring(0, commonlength)
));
pointer++;
}
text_insert = text_insert.substring(commonlength);
text_delete = text_delete.substring(commonlength);
}
commonlength = diff_commonSuffix(text_insert, text_delete);
if (commonlength !== 0) {
diffs[pointer][1] = text_insert.substring(text_insert.length - commonlength) + diffs[pointer][1];
text_insert = text_insert.substring(0, text_insert.length - commonlength);
text_delete = text_delete.substring(0, text_delete.length - commonlength);
}
}
pointer -= count_delete + count_insert;
diffs.splice(pointer, count_delete + count_insert);
if (text_delete.length) {
diffs.splice(
pointer,
0,
new Diff(DIFF_DELETE, text_delete)
);
pointer++;
}
if (text_insert.length) {
diffs.splice(
pointer,
0,
new Diff(DIFF_INSERT, text_insert)
);
pointer++;
}
pointer++;
} else if (pointer !== 0 && diffs[pointer - 1][0] === DIFF_EQUAL) {
diffs[pointer - 1][1] += diffs[pointer][1];
diffs.splice(pointer, 1);
} else {
pointer++;
}
count_insert = 0;
count_delete = 0;
text_delete = "";
text_insert = "";
break;
}
}
if (diffs[diffs.length - 1][1] === "")
diffs.pop();
let changes = false;
pointer = 1;
while (pointer < diffs.length - 1) {
if (diffs[pointer - 1][0] === DIFF_EQUAL && diffs[pointer + 1][0] === DIFF_EQUAL) {
if (diffs[pointer][1].substring(diffs[pointer][1].length - diffs[pointer - 1][1].length) === diffs[pointer - 1][1]) {
diffs[pointer][1] = diffs[pointer - 1][1] + diffs[pointer][1].substring(0, diffs[pointer][1].length - diffs[pointer - 1][1].length);
diffs[pointer + 1][1] = diffs[pointer - 1][1] + diffs[pointer + 1][1];
diffs.splice(pointer - 1, 1);
changes = true;
} else if (diffs[pointer][1].substring(0, diffs[pointer + 1][1].length) === diffs[pointer + 1][1]) {
diffs[pointer - 1][1] += diffs[pointer + 1][1];
diffs[pointer][1] = diffs[pointer][1].substring(diffs[pointer + 1][1].length) + diffs[pointer + 1][1];
diffs.splice(pointer + 1, 1);
changes = true;
}
}
pointer++;
}
if (changes)
diff_cleanupMerge(diffs);
}
const NO_DIFF_MESSAGE = "Compared values have no visual difference.";
const SIMILAR_MESSAGE = "Compared values serialize to the same structure.\nPrinting internal object structure without calling `toJSON` instead.";
function formatTrailingSpaces(line, trailingSpaceFormatter) {
return line.replace(/\s+$/, (match) => trailingSpaceFormatter(match));
}
function printDiffLine(line, isFirstOrLast, color, indicator, trailingSpaceFormatter, emptyFirstOrLastLinePlaceholder) {
return line.length !== 0 ? color(
`${indicator} ${formatTrailingSpaces(line, trailingSpaceFormatter)}`
) : indicator !== " " ? color(indicator) : isFirstOrLast && emptyFirstOrLastLinePlaceholder.length !== 0 ? color(`${indicator} ${emptyFirstOrLastLinePlaceholder}`) : "";
}
function printDeleteLine(line, isFirstOrLast, {
aColor,
aIndicator,
changeLineTrailingSpaceColor,
emptyFirstOrLastLinePlaceholder
}) {
return printDiffLine(
line,
isFirstOrLast,
aColor,
aIndicator,
changeLineTrailingSpaceColor,
emptyFirstOrLastLinePlaceholder
);
}
function printInsertLine(line, isFirstOrLast, {
bColor,
bIndicator,
changeLineTrailingSpaceColor,
emptyFirstOrLastLinePlaceholder
}) {
return printDiffLine(
line,
isFirstOrLast,
bColor,
bIndicator,
changeLineTrailingSpaceColor,
emptyFirstOrLastLinePlaceholder
);
}
function printCommonLine(line, isFirstOrLast, {
commonColor,
commonIndicator,
commonLineTrailingSpaceColor,
emptyFirstOrLastLinePlaceholder
}) {
return printDiffLine(
line,
isFirstOrLast,
commonColor,
commonIndicator,
commonLineTrailingSpaceColor,
emptyFirstOrLastLinePlaceholder
);
}
function createPatchMark(aStart, aEnd, bStart, bEnd, { patchColor }) {
return patchColor(
`@@ -${aStart + 1},${aEnd - aStart} +${bStart + 1},${bEnd - bStart} @@`
);
}
function joinAlignedDiffsNoExpand(diffs, options) {
const iLength = diffs.length;
const nContextLines = options.contextLines;
const nContextLines2 = nContextLines + nContextLines;
let jLength = iLength;
let hasExcessAtStartOrEnd = false;
let nExcessesBetweenChanges = 0;
let i = 0;
while (i !== iLength) {
const iStart = i;
while (i !== iLength && diffs[i][0] === DIFF_EQUAL)
i += 1;
if (iStart !== i) {
if (iStart === 0) {
if (i > nContextLines) {
jLength -= i - nContextLines;
hasExcessAtStartOrEnd = true;
}
} else if (i === iLength) {
const n = i - iStart;
if (n > nContextLines) {
jLength -= n - nContextLines;
hasExcessAtStartOrEnd = true;
}
} else {
const n = i - iStart;
if (n > nContextLines2) {
jLength -= n - nContextLines2;
nExcessesBetweenChanges += 1;
}
}
}
while (i !== iLength && diffs[i][0] !== DIFF_EQUAL)
i += 1;
}
const hasPatch = nExcessesBetweenChanges !== 0 || hasExcessAtStartOrEnd;
if (nExcessesBetweenChanges !== 0)
jLength += nExcessesBetweenChanges + 1;
else if (hasExcessAtStartOrEnd)
jLength += 1;
const jLast = jLength - 1;
const lines = [];
let jPatchMark = 0;
if (hasPatch)
lines.push("");
let aStart = 0;
let bStart = 0;
let aEnd = 0;
let bEnd = 0;
const pushCommonLine = (line) => {
const j = lines.length;
lines.push(printCommonLine(line, j === 0 || j === jLast, options));
aEnd += 1;
bEnd += 1;
};
const pushDeleteLine = (line) => {
const j = lines.length;
lines.push(printDeleteLine(line, j === 0 || j === jLast, options));
aEnd += 1;
};
const pushInsertLine = (line) => {
const j = lines.length;
lines.push(printInsertLine(line, j === 0 || j === jLast, options));
bEnd += 1;
};
i = 0;
while (i !== iLength) {
let iStart = i;
while (i !== iLength && diffs[i][0] === DIFF_EQUAL)
i += 1;
if (iStart !== i) {
if (iStart === 0) {
if (i > nContextLines) {
iStart = i - nContextLines;
aStart = iStart;
bStart = iStart;
aEnd = aStart;
bEnd = bStart;
}
for (let iCommon = iStart; iCommon !== i; iCommon += 1)
pushCommonLine(diffs[iCommon][1]);
} else if (i === iLength) {
const iEnd = i - iStart > nContextLines ? iStart + nContextLines : i;
for (let iCommon = iStart; iCommon !== iEnd; iCommon += 1)
pushCommonLine(diffs[iCommon][1]);
} else {
const nCommon = i - iStart;
if (nCommon > nContextLines2) {
const iEnd = iStart + nContextLines;
for (let iCommon = iStart; iCommon !== iEnd; iCommon += 1)
pushCommonLine(diffs[iCommon][1]);
lines[jPatchMark] = createPatchMark(
aStart,
aEnd,
bStart,
bEnd,
options
);
jPatchMark = lines.length;
lines.push("");
const nOmit = nCommon - nContextLines2;
aStart = aEnd + nOmit;
bStart = bEnd + nOmit;
aEnd = aStart;
bEnd = bStart;
for (let iCommon = i - nContextLines; iCommon !== i; iCommon += 1)
pushCommonLine(diffs[iCommon][1]);
} else {
for (let iCommon = iStart; iCommon !== i; iCommon += 1)
pushCommonLine(diffs[iCommon][1]);
}
}
}
while (i !== iLength && diffs[i][0] === DIFF_DELETE) {
pushDeleteLine(diffs[i][1]);
i += 1;
}
while (i !== iLength && diffs[i][0] === DIFF_INSERT) {
pushInsertLine(diffs[i][1]);
i += 1;
}
}
if (hasPatch)
lines[jPatchMark] = createPatchMark(aStart, aEnd, bStart, bEnd, options);
return lines.join("\n");
}
function joinAlignedDiffsExpand(diffs, options) {
return diffs.map((diff, i, diffs2) => {
const line = diff[1];
const isFirstOrLast = i === 0 || i === diffs2.length - 1;
switch (diff[0]) {
case DIFF_DELETE:
return printDeleteLine(line, isFirstOrLast, options);
case DIFF_INSERT:
return printInsertLine(line, isFirstOrLast, options);
default:
return printCommonLine(line, isFirstOrLast, options);
}
}).join("\n");
}
const noColor = (string) => string;
const DIFF_CONTEXT_DEFAULT = 5;
function getDefaultOptions() {
const c = getColors();
return {
aAnnotation: "Expected",
aColor: c.green,
aIndicator: "-",
bAnnotation: "Received",
bColor: c.red,
bIndicator: "+",
changeColor: c.inverse,
changeLineTrailingSpaceColor: noColor,
commonColor: c.dim,
commonIndicator: " ",
commonLineTrailingSpaceColor: noColor,
compareKeys: void 0,
contextLines: DIFF_CONTEXT_DEFAULT,
emptyFirstOrLastLinePlaceholder: "",
expand: true,
includeChangeCounts: false,
omitAnnotationLines: false,
patchColor: c.yellow
};
}
function getCompareKeys(compareKeys) {
return compareKeys && typeof compareKeys === "function" ? compareKeys : void 0;
}
function getContextLines(contextLines) {
return typeof contextLines === "number" && Number.isSafeInteger(contextLines) && contextLines >= 0 ? contextLines : DIFF_CONTEXT_DEFAULT;
}
function normalizeDiffOptions(options = {}) {
return {
...getDefaultOptions(),
...options,
compareKeys: getCompareKeys(options.compareKeys),
contextLines: getContextLines(options.contextLines)
};
}
function isEmptyString(lines) {
return lines.length === 1 && lines[0].length === 0;
}
function countChanges(diffs) {
let a = 0;
let b = 0;
diffs.forEach((diff2) => {
switch (diff2[0]) {
case DIFF_DELETE:
a += 1;
break;
case DIFF_INSERT:
b += 1;
break;
}
});
return { a, b };
}
function printAnnotation({
aAnnotation,
aColor,
aIndicator,
bAnnotation,
bColor,
bIndicator,
includeChangeCounts,
omitAnnotationLines
}, changeCounts) {
if (omitAnnotationLines)
return "";
let aRest = "";
let bRest = "";
if (includeChangeCounts) {
const aCount = String(changeCounts.a);
const bCount = String(changeCounts.b);
const baAnnotationLengthDiff = bAnnotation.length - aAnnotation.length;
const aAnnotationPadding = " ".repeat(Math.max(0, baAnnotationLengthDiff));
const bAnnotationPadding = " ".repeat(Math.max(0, -baAnnotationLengthDiff));
const baCountLengthDiff = bCount.length - aCount.length;
const aCountPadding = " ".repeat(Math.max(0, baCountLengthDiff));
const bCountPadding = " ".repeat(Math.max(0, -baCountLengthDiff));
aRest = `${aAnnotationPadding} ${aIndicator} ${aCountPadding}${aCount}`;
bRest = `${bAnnotationPadding} ${bIndicator} ${bCountPadding}${bCount}`;
}
const a = `${aIndicator} ${aAnnotation}${aRest}`;
const b = `${bIndicator} ${bAnnotation}${bRest}`;
return `${aColor(a)}
${bColor(b)}
`;
}
function printDiffLines(diffs, options) {
return printAnnotation(options, countChanges(diffs)) + (options.expand ? joinAlignedDiffsExpand(diffs, options) : joinAlignedDiffsNoExpand(diffs, options));
}
function diffLinesUnified(aLines, bLines, options) {
return printDiffLines(
diffLinesRaw(
isEmptyString(aLines) ? [] : aLines,
isEmptyString(bLines) ? [] : bLines
),
normalizeDiffOptions(options)
);
}
function diffLinesUnified2(aLinesDisplay, bLinesDisplay, aLinesCompare, bLinesCompare, options) {
if (isEmptyString(aLinesDisplay) && isEmptyString(aLinesCompare)) {
aLinesDisplay = [];
aLinesCompare = [];
}
if (isEmptyString(bLinesDisplay) && isEmptyString(bLinesCompare)) {
bLinesDisplay = [];
bLinesCompare = [];
}
if (aLinesDisplay.length !== aLinesCompare.length || bLinesDisplay.length !== bLinesCompare.length) {
return diffLinesUnified(aLinesDisplay, bLinesDisplay, options);
}
const diffs = diffLinesRaw(aLinesCompare, bLinesCompare);
let aIndex = 0;
let bIndex = 0;
diffs.forEach((diff2) => {
switch (diff2[0]) {
case DIFF_DELETE:
diff2[1] = aLinesDisplay[aIndex];
aIndex += 1;
break;
case DIFF_INSERT:
diff2[1] = bLinesDisplay[bIndex];
bIndex += 1;
break;
default:
diff2[1] = bLinesDisplay[bIndex];
aIndex += 1;
bIndex += 1;
}
});
return printDiffLines(diffs, normalizeDiffOptions(options));
}
function diffLinesRaw(aLines, bLines) {
const aLength = aLines.length;
const bLength = bLines.length;
const isCommon = (aIndex2, bIndex2) => aLines[aIndex2] === bLines[bIndex2];
const diffs = [];
let aIndex = 0;
let bIndex = 0;
const foundSubsequence = (nCommon, aCommon, bCommon) => {
for (; aIndex !== aCommon; aIndex += 1)
diffs.push(new Diff(DIFF_DELETE, aLines[aIndex]));
for (; bIndex !== bCommon; bIndex += 1)
diffs.push(new Diff(DIFF_INSERT, bLines[bIndex]));
for (; nCommon !== 0; nCommon -= 1, aIndex += 1, bIndex += 1)
diffs.push(new Diff(DIFF_EQUAL, bLines[bIndex]));
};
const diffSequences = diff$1.default.default || diff$1.default;
diffSequences(aLength, bLength, isCommon, foundSubsequence);
for (; aIndex !== aLength; aIndex += 1)
diffs.push(new Diff(DIFF_DELETE, aLines[aIndex]));
for (; bIndex !== bLength; bIndex += 1)
diffs.push(new Diff(DIFF_INSERT, bLines[bIndex]));
return diffs;
}
function diffStrings(a, b) {
const isCommon = (aIndex2, bIndex2) => a[aIndex2] === b[bIndex2];
let aIndex = 0;
let bIndex = 0;
const diffs = [];
const foundSubsequence = (nCommon, aCommon, bCommon) => {
if (aIndex !== aCommon)
diffs.push(new Diff(DIFF_DELETE, a.slice(aIndex, aCommon)));
if (bIndex !== bCommon)
diffs.push(new Diff(DIFF_INSERT, b.slice(bIndex, bCommon)));
aIndex = aCommon + nCommon;
bIndex = bCommon + nCommon;
diffs.push(new Diff(DIFF_EQUAL, b.slice(bCommon, bIndex)));
};
const diffSequences = diff$1.default.default || diff$1.default;
diffSequences(a.length, b.length, isCommon, foundSubsequence);
if (aIndex !== a.length)
diffs.push(new Diff(DIFF_DELETE, a.slice(aIndex)));
if (bIndex !== b.length)
diffs.push(new Diff(DIFF_INSERT, b.slice(bIndex)));
return diffs;
}
function concatenateRelevantDiffs(op, diffs, changeColor) {
return diffs.reduce(
(reduced, diff) => reduced + (diff[0] === DIFF_EQUAL ? diff[1] : diff[0] === op && diff[1].length !== 0 ? changeColor(diff[1]) : ""),
""
);
}
class ChangeBuffer {
op;
line;
// incomplete line
lines;
// complete lines
changeColor;
constructor(op, changeColor) {
this.op = op;
this.line = [];
this.lines = [];
this.changeColor = changeColor;
}
pushSubstring(substring) {
this.pushDiff(new Diff(this.op, substring));
}
pushLine() {
this.lines.push(
this.line.length !== 1 ? new Diff(
this.op,
concatenateRelevantDiffs(this.op, this.line, this.changeColor)
) : this.line[0][0] === this.op ? this.line[0] : new Diff(this.op, this.line[0][1])
// was common diff
);
this.line.length = 0;
}
isLineEmpty() {
return this.line.length === 0;
}
// Minor input to buffer.
pushDiff(diff) {
this.line.push(diff);
}
// Main input to buffer.
align(diff) {
const string = diff[1];
if (string.includes("\n")) {
const substrings = string.split("\n");
const iLast = substrings.length - 1;
substrings.forEach((substring, i) => {
if (i < iLast) {
this.pushSubstring(substring);
this.pushLine();
} else if (substring.length !== 0) {
this.pushSubstring(substring);
}
});
} else {
this.pushDiff(diff);
}
}
// Output from buffer.
moveLinesTo(lines) {
if (!this.isLineEmpty())
this.pushLine();
lines.push(...this.lines);
this.lines.length = 0;
}
}
class CommonBuffer {
deleteBuffer;
insertBuffer;
lines;
constructor(deleteBuffer, insertBuffer) {
this.deleteBuffer = deleteBuffer;
this.insertBuffer = insertBuffer;
this.lines = [];
}
pushDiffCommonLine(diff) {
this.lines.push(diff);
}
pushDiffChangeLines(diff) {
const isDiffEmpty = diff[1].length === 0;
if (!isDiffEmpty || this.deleteBuffer.isLineEmpty())
this.deleteBuffer.pushDiff(diff);
if (!isDiffEmpty || this.insertBuffer.isLineEmpty())
this.insertBuffer.pushDiff(diff);
}
flushChangeLines() {
this.deleteBuffer.moveLinesTo(this.lines);
this.insertBuffer.moveLinesTo(this.lines);
}
// Input to buffer.
align(diff) {
const op = diff[0];
const string = diff[1];
if (string.includes("\n")) {
const substrings = string.split("\n");
const iLast = substrings.length - 1;
substrings.forEach((substring, i) => {
if (i === 0) {
const subdiff = new Diff(op, substring);
if (this.deleteBuffer.isLineEmpty() && this.insertBuffer.isLineEmpty()) {
this.flushChangeLines();
this.pushDiffCommonLine(subdiff);
} else {
this.pushDiffChangeLines(subdiff);
this.flushChangeLines();
}
} else if (i < iLast) {
this.pushDiffCommonLine(new Diff(op, substring));
} else if (substring.length !== 0) {
this.pushDiffChangeLines(new Diff(op, substring));
}
});
} else {
this.pushDiffChangeLines(diff);
}
}
// Output from buffer.
getLines() {
this.flushChangeLines();
return this.lines;
}
}
function getAlignedDiffs(diffs, changeColor) {
const deleteBuffer = new ChangeBuffer(DIFF_DELETE, changeColor);
const insertBuffer = new ChangeBuffer(DIFF_INSERT, changeColor);
const commonBuffer = new CommonBuffer(deleteBuffer, insertBuffer);
diffs.forEach((diff) => {
switch (diff[0]) {
case DIFF_DELETE:
deleteBuffer.align(diff);
break;
case DIFF_INSERT:
insertBuffer.align(diff);
break;
default:
commonBuffer.align(diff);
}
});
return commonBuffer.getLines();
}
function hasCommonDiff(diffs, isMultiline) {
if (isMultiline) {
const iLast = diffs.length - 1;
return diffs.some(
(diff, i) => diff[0] === DIFF_EQUAL && (i !== iLast || diff[1] !== "\n")
);
}
return diffs.some((diff) => diff[0] === DIFF_EQUAL);
}
function diffStringsUnified(a, b, options) {
if (a !== b && a.length !== 0 && b.length !== 0) {
const isMultiline = a.includes("\n") || b.includes("\n");
const diffs = diffStringsRaw(
isMultiline ? `${a}
` : a,
isMultiline ? `${b}
` : b,
true
// cleanupSemantic
);
if (hasCommonDiff(diffs, isMultiline)) {
const optionsNormalized = normalizeDiffOptions(options);
const lines = getAlignedDiffs(diffs, optionsNormalized.changeColor);
return printDiffLines(lines, optionsNormalized);
}
}
return diffLinesUnified(a.split("\n"), b.split("\n"), options);
}
function diffStringsRaw(a, b, cleanup) {
const diffs = diffStrings(a, b);
if (cleanup)
diff_cleanupSemantic(diffs);
return diffs;
}
function getCommonMessage(message, options) {
const { commonColor } = normalizeDiffOptions(options);
return commonColor(message);
}
const {
AsymmetricMatcher,
DOMCollection,
DOMElement,
Immutable,
ReactElement,
ReactTestComponent
} = plugins;
const PLUGINS = [
ReactTestComponent,
ReactElement,
DOMElement,
DOMCollection,
Immutable,
AsymmetricMatcher
];
const FORMAT_OPTIONS = {
plugins: PLUGINS
};
const FALLBACK_FORMAT_OPTIONS = {
callToJSON: false,
maxDepth: 10,
plugins: PLUGINS
};
function diff(a, b, options) {
if (Object.is(a, b))
return "";
const aType = getType(a);
let expectedType = aType;
let omitDifference = false;
if (aType === "object" && typeof a.asymmetricMatch === "function") {
if (a.$$typeof !== Symbol.for("jest.asymmetricMatcher")) {
return null;
}
if (typeof a.getExpectedType !== "function") {
return null;
}
expectedType = a.getExpectedType();
omitDifference = expectedType === "string";
}
if (expectedType !== getType(b)) {
const { aAnnotation, aColor, aIndicator, bAnnotation, bColor, bIndicator } = normalizeDiffOptions(options);
const formatOptions = getFormatOptions(FALLBACK_FORMAT_OPTIONS, options);
const aDisplay = format(a, formatOptions);
const bDisplay = format(b, formatOptions);
const aDiff = `${aColor(`${aIndicator} ${aAnnotation}:`)}
${aDisplay}`;
const bDiff = `${bColor(`${bIndicator} ${bAnnotation}:`)}
${bDisplay}`;
return `${aDiff}
${bDiff}`;
}
if (omitDifference)
return null;
switch (aType) {
case "string":
return diffLinesUnified(a.split("\n"), b.split("\n"), options);
case "boolean":
case "number":
return comparePrimitive(a, b, options);
case "map":
return compareObjects(sortMap(a), sortMap(b), options);
case "set":
return compareObjects(sortSet(a), sortSet(b), options);
default:
return compareObjects(a, b, options);
}
}
function comparePrimitive(a, b, options) {
const aFormat = format(a, FORMAT_OPTIONS);
const bFormat = format(b, FORMAT_OPTIONS);
return aFormat === bFormat ? "" : diffLinesUnified(aFormat.split("\n"), bFormat.split("\n"), options);
}
function sortMap(map) {
return new Map(Array.from(map.entries()).sort());
}
function sortSet(set) {
return new Set(Array.from(set.values()).sort());
}
function compareObjects(a, b, options) {
let difference;
let hasThrown = false;
try {
const formatOptions = getFormatOptions(FORMAT_OPTIONS, options);
difference = getObjectsDifference(a, b, formatOptions, options);
} catch {
hasThrown = true;
}
const noDiffMessage = getCommonMessage(NO_DIFF_MESSAGE, options);
if (difference === void 0 || difference === noDiffMessage) {
const formatOptions = getFormatOptions(FALLBACK_FORMAT_OPTIONS, options);
difference = getObjectsDifference(a, b, formatOptions, options);
if (difference !== noDiffMessage && !hasThrown) {
difference = `${getCommonMessage(
SIMILAR_MESSAGE,
options
)}
${difference}`;
}
}
return difference;
}
function getFormatOptions(formatOptions, options) {
const { compareKeys } = normalizeDiffOptions(options);
return {
...formatOptions,
compareKeys
};
}
function getObjectsDifference(a, b, formatOptions, options) {
const formatOptionsZeroIndent = { ...formatOptions, indent: 0 };
const aCompare = format(a, formatOptionsZeroIndent);
const bCompare = format(b, formatOptionsZeroIndent);
if (aCompare === bCompare) {
return getCommonMessage(NO_DIFF_MESSAGE, options);
} else {
const aDisplay = format(a, formatOptions);
const bDisplay = format(b, formatOptions);
return diffLinesUnified2(
aDisplay.split("\n"),
bDisplay.split("\n"),
aCompare.split("\n"),
bCompare.split("\n"),
options
);
}
}
export { DIFF_DELETE, DIFF_EQUAL, DIFF_INSERT, Diff, diff, diffLinesRaw, diffLinesUnified, diffLinesUnified2, diffStringsRaw, diffStringsUnified };