jest-matcher-utils - npm Package Compare versions

Comparing version 15.1.0 to 15.2.0-alpha.c681f819

build/index.js

@@ -14,2 +14,3 @@ /**
 const chalk = require('chalk');
+const prettyFormat = require('pretty-format');
 
@@ -31,2 +32,19 @@
 
+const NUMBERS = [
+'zero',
+'one',
+'two',
+'three',
+'four',
+'five',
+'six',
+'seven',
+'eight',
+'nine',
+'ten',
+'eleven',
+'twelve',
+'thirteen'];
+
+
 // get the type of a value with handling the edge cases like `typeof []`
@@ -62,66 +80,15 @@ // and `typeof null`
 
-const stringifyValue = (value, visitedSet) => {
-  if (value instanceof Error) {
-    const name = value.constructor && value.constructor.name || 'Error';
-    return `${ name }: ${ value.message }`;
-  } else if (typeof value === 'object' && value !== null) {
-    if (
-    value &&
-    value.constructor &&
-    value.constructor.name === 'RegExp')
-    {
-      return value.toString();
-    } else {
-      if (visitedSet.has(value)) {
-        return '[Circular]';
-      }
-      visitedSet.add(value);
-    }
-  } else if (typeof value === 'function') {
-    return value.toString();
-  } else if (typeof value === 'undefined') {
-    return 'undefined';
-    // $FlowFixMe symbols are not supported by flow yet
-  } else if (typeof value === 'symbol') {
-    return value.toString();
-  } else if (value === Infinity) {
-    return 'Infinity';
-  } else if (value === -Infinity) {
-    return '-Infinity';
-  } else if (Number.isNaN(value)) {
-    return 'NaN';
-  }
-  return value;
-};
-
-const stringifyDeep = obj => {
-  const visitedSet = new Set();
-  let result = null;
+const stringify = object => {
   try {
-    result = JSON.stringify(
-    obj,
-    (_, value) => stringifyValue(value, visitedSet));
+    return prettyFormat(object, {
+      min: true });
 
-  } catch (err) {}
-  return typeof result === 'string' ? result : null;
-};
+  } catch (e) {
+    return prettyFormat(object, {
+      callToJSON: false,
+      min: true });
 
-const stringifyShallow = obj => {
-  let result = null;
-  try {
-    result = stringifyValue(obj, new Set());
-  } catch (err) {}
-  return typeof result === 'string' ? result : null;
+  }
 };
 
-// Convert to JSON removing circular references and
-// converting JS values to strings.
-const stringify = obj => {
-  return (
-    stringifyDeep(obj) ||
-    stringifyShallow(obj) ||
-    '[' + typeof obj + ']');
-
-};
-
 const printReceived = object => RECEIVED_COLOR(stringify(object));
@@ -148,3 +115,7 @@ const printExpected = value => EXPECTED_COLOR(stringify(value));
   if (typeof expected !== 'undefined') {
-    throw new Error(`${ matcherName } matcher does not accept any arguments.`);
+    throw new Error(
+    matcherHint('[.not]' + matcherName, undefined, '') + '\n\n' +
+    'Matcher does not accept any arguments.\n' +
+    printWithType('Got', expected, printExpected));
+
   }
@@ -157,4 +128,5 @@ };
     throw new Error(
-    `${ matcherName } actual value should be a number. ` +
-    `'${ typeof actual }' was passed.`);
+    matcherHint('[.not]' + matcherName) + '\n\n' +
+    `Actual value must be a number.\n` +
+    printWithType('Received', actual, printReceived));
 
@@ -168,4 +140,5 @@ }
     throw new Error(
-    `${ matcherName } expected value should be a number. ` +
-    `'${ typeof expected }' was passed.`);
+    matcherHint('[.not]' + matcherName) + '\n\n' +
+    `Expected value must be a number.\n` +
+    printWithType('Got', expected, printExpected));
 
@@ -181,3 +154,4 @@ }
 const pluralize =
-(word, count) => `${ count } ${ word }${ count === 1 ? '' : 's' }`;
+(word, count) =>
+(NUMBERS[count] || count) + ' ' + word + (count === 1 ? '' : 's');
 
@@ -189,5 +163,7 @@ const matcherHint = function (
 {let received = arguments.length <= 1 || arguments[1] === undefined ? 'received' : arguments[1];let expected = arguments.length <= 2 || arguments[2] === undefined ? 'expected' : arguments[2];
-  return chalk.dim('expect(') + RECEIVED_COLOR(received) +
-  chalk.dim(')' + matcherName + '(') +
-  EXPECTED_COLOR(expected) + chalk.dim(')');
+  return (
+    chalk.dim('expect(') + RECEIVED_COLOR(received) +
+    chalk.dim(')' + matcherName + '(') +
+    EXPECTED_COLOR(expected) + chalk.dim(')'));
+
 };
@@ -194,0 +170,0 @@

package.json

 {
   "name": "jest-matcher-utils",
   "description": "A set of utility functions for jest-matchers and related packages",
-  "version": "15.1.0",
+  "version": "15.2.0-alpha.c681f819",
   "repository": {
@@ -15,4 +15,5 @@ "type": "git",
   "dependencies": {
-    "chalk": "^1.1.3"
+    "chalk": "^1.1.3",
+    "pretty-format": "~4.2.1"
   }
 }

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Worsened metrics

Total package byte prevSize

4421

decreased by-18.01%

Dependency count

2

increased by100%

Lines of code

137

decreased by-15.43%

Number of low quality alerts

2

increased by100%

Dependency changes

• + Addedpretty-format@~4.2.1

• + Addedpretty-format@4.2.3(transitive)