vitest
Version:
Next generation testing framework powered by Vite
195 lines (192 loc) • 5.98 kB
JavaScript
import { f as format$1, p as plugins, c as createDOMElementFilter } from './index.D0heQG4v.js';
const { AsymmetricMatcher, DOMCollection, DOMElement, Immutable, ReactElement, ReactTestComponent } = plugins;
const PLUGINS = [
ReactTestComponent,
ReactElement,
DOMElement,
DOMCollection,
Immutable,
AsymmetricMatcher
];
function stringify(object, maxDepth = 10, { maxLength, filterNode, ...options } = {}) {
const MAX_LENGTH = maxLength ?? 1e4;
let result;
// Convert string selector to filter function
const filterFn = typeof filterNode === "string" ? createNodeFilterFromSelector(filterNode) : filterNode;
const plugins = filterFn ? [
ReactTestComponent,
ReactElement,
createDOMElementFilter(filterFn),
DOMCollection,
Immutable,
AsymmetricMatcher
] : PLUGINS;
try {
result = format$1(object, {
maxDepth,
escapeString: false,
// min: true,
plugins,
...options
});
} catch {
result = format$1(object, {
callToJSON: false,
maxDepth,
escapeString: false,
// min: true,
plugins,
...options
});
}
// Prevents infinite loop https://github.com/vitest-dev/vitest/issues/7249
return result.length >= MAX_LENGTH && maxDepth > 1 ? stringify(object, Math.floor(Math.min(maxDepth, Number.MAX_SAFE_INTEGER) / 2), {
maxLength,
filterNode,
...options
}) : result;
}
function createNodeFilterFromSelector(selector) {
const ELEMENT_NODE = 1;
const COMMENT_NODE = 8;
return (node) => {
// Filter out comments
if (node.nodeType === COMMENT_NODE) return false;
// Filter out elements matching the selector
if (node.nodeType === ELEMENT_NODE && node.matches) try {
return !node.matches(selector);
} catch {
return true;
}
return true;
};
}
const formatRegExp = /%[sdjifoOc%]/g;
function format(args, options = {}) {
const formatArg = (item) => inspect(item, options);
if (typeof args[0] !== "string") {
const objects = [];
for (let i = 0; i < args.length; i++) objects.push(formatArg(args[i]));
return objects.join(" ");
}
const len = args.length;
let i = 1;
const template = args[0];
let str = String(template).replace(formatRegExp, (x) => {
if (x === "%%") return "%";
if (i >= len) return x;
switch (x) {
case "%s": {
const value = args[i++];
if (typeof value === "bigint") return `${value.toString()}n`;
if (typeof value === "number" && value === 0 && 1 / value < 0) return "-0";
if (typeof value === "object" && value !== null) {
if (typeof value.toString === "function" && value.toString !== Object.prototype.toString) return value.toString();
return formatArg(value);
}
return String(value);
}
case "%d": {
const value = args[i++];
if (typeof value === "bigint") return `${value.toString()}n`;
if (typeof value === "symbol") return "NaN";
return Number(value).toString();
}
case "%i": {
const value = args[i++];
if (typeof value === "bigint") return `${value.toString()}n`;
return Number.parseInt(String(value)).toString();
}
case "%f": return Number.parseFloat(String(args[i++])).toString();
case "%o":
case "%O": return formatArg(args[i++]);
case "%c":
i++;
return "";
case "%j": try {
return JSON.stringify(args[i++]);
} catch (err) {
const m = err.message;
if (m.includes("circular structure") || m.includes("cyclic structures") || m.includes("cyclic object")) return "[Circular]";
throw err;
}
default: return x;
}
});
for (let x = args[i]; i < len; x = args[++i]) if (x === null || typeof x !== "object") str += ` ${typeof x === "symbol" ? x.toString() : x}`;
else str += ` ${formatArg(x)}`;
return str;
}
function inspect(obj, options) {
const { truncate, multiline, ...stringifyOptions } = options ?? {};
const prettyFormatOptions = {
singleQuote: true,
quoteKeys: false,
min: true,
spacingInner: " ",
spacingOuter: " ",
printBasicPrototype: false,
compareKeys: null,
...multiline ? {
min: false,
spacingInner: void 0,
spacingOuter: void 0
} : {}
};
const threshold = truncate ?? 0;
const formatted = stringify(obj, void 0, {
...prettyFormatOptions,
...stringifyOptions,
maxLength: threshold || void 0
});
if (threshold === 0 || formatted.length <= threshold) return formatted;
// if stringify's adaptive maxDepth (down to 1) fails to truncate enough,
// - for known types (e.g. string, object, array, etc), apply best effort truncation.
// - for other values, fallback to maxDepth = 0 which should can show minimal output.
const type = Object.prototype.toString.call(obj);
if (typeof obj === "string") {
let end = threshold - 1;
if (end > 0 && isHighSurrogate(formatted[end - 1])) end = end - 1;
return `'${formatted.slice(1, end)}…'`;
}
if (type === "[object Array]" || type === "[object Object]" || type === "[object Set]" || type === "[object Map]") return stringifyByMaxWidth(obj, threshold, {
...prettyFormatOptions,
...stringifyOptions,
maxDepth: 1
});
return stringify(obj, void 0, {
...prettyFormatOptions,
...stringifyOptions,
maxDepth: 0
});
}
function truncateString(string, maxLength) {
if (string.length <= maxLength) return string;
let end = maxLength - 1;
if (isHighSurrogate(string[end - 1])) end = end - 1;
return `${string.slice(0, end)}…`;
}
function stringifyByMaxWidth(object, threshold, options) {
function evaluate(x) {
return stringify(object, void 0, {
...options,
maxWidth: x
});
}
return evaluate(binarySearch(0, threshold, (x) => evaluate(x).length <= threshold));
}
// find max(x \in [x, y) | f(x) = true)
// if f(x0) is false, then returns x0.
function binarySearch(x0, x1, f) {
while (x0 + 1 < x1) {
const x = Math.floor((x0 + x1) / 2);
if (f(x)) x0 = x;
else x1 = x;
}
return x0;
}
// https://github.com/chaijs/loupe/pull/79
function isHighSurrogate(char) {
return char >= "\ud800" && char <= "\udbff";
}
export { formatRegExp as a, format as f, inspect as i, stringify as s, truncateString as t };