diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9c45d21186..bf0c559bd1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,6 +10,8 @@ on:
 
 env:
   CI: true
+  # Force terminal colors. @see https://www.npmjs.com/package/colors
+  FORCE_COLOR: 1
 
 jobs:
   chromium_linux:
diff --git a/package.json b/package.json
index 3e9ea44e7d..055e825c60 100644
--- a/package.json
+++ b/package.json
@@ -62,6 +62,7 @@
     "@types/ws": "^6.0.1",
     "@typescript-eslint/eslint-plugin": "^2.6.1",
     "@typescript-eslint/parser": "^2.6.1",
+    "colors": "^1.4.0",
     "commonmark": "^0.28.1",
     "cross-env": "^5.0.5",
     "eslint": "^6.6.0",
diff --git a/test/golden-utils.js b/test/golden-utils.js
index ebb152f0e9..7ae32399d8 100644
--- a/test/golden-utils.js
+++ b/test/golden-utils.js
@@ -20,6 +20,7 @@ const Diff = require('text-diff');
 const PNG = require('pngjs').PNG;
 const jpeg = require('jpeg-js');
 const pixelmatch = require('pixelmatch');
+const c = require('colors/safe');
 
 module.exports = {compare};
 
@@ -51,7 +52,7 @@ function compareImages(actualBuffer, expectedBuffer, mimeType) {
   const expected = mimeType === 'image/png' ? PNG.sync.read(expectedBuffer) : jpeg.decode(expectedBuffer);
   if (expected.width !== actual.width || expected.height !== actual.height) {
     return {
-      errorMessage: `Sizes differ: expected image ${expected.width}px X ${expected.height}px, but got ${actual.width}px X ${actual.height}px. `
+      errorMessage: `Sizes differ; expected image ${expected.width}px X ${expected.height}px, but got ${actual.width}px X ${actual.height}px. `
     };
   }
   const diff = new PNG({width: expected.width, height: expected.height});
@@ -110,23 +111,34 @@ function compare(goldenPath, outputPath, actual, goldenName) {
   if (!comparator) {
     return {
       pass: false,
-      message: 'Failed to find comparator with type ' + mimeType + ': '  + goldenName
+      message: 'Failed to find comparator with type ' + mimeType + ': '  + goldenName,
     };
   }
   const result = comparator(actual, expected, mimeType);
   if (!result)
     return { pass: true };
   ensureOutputDir();
+  const output = [
+    c.red(`GOLDEN FAILED: `) + c.yellow('"' + goldenName + '"'),
+  ];
+  if (result.errorMessage)
+    output.push('    ' + result.errorMessage);
+  output.push('');
+  output.push(`Expected: ${c.yellow(expectedPath)}`);
   if (goldenPath === outputPath) {
-    fs.writeFileSync(addSuffix(actualPath, '-actual'), actual);
+    const filepath = addSuffix(actualPath, '-actual');
+    fs.writeFileSync(filepath, actual);
+    output.push(`Received: ${c.yellow(filepath)}`);
   } else {
     fs.writeFileSync(actualPath, actual);
     // Copy expected to the output/ folder for convenience.
     fs.writeFileSync(addSuffix(actualPath, '-expected'), expected);
+    output.push(`Received: ${c.yellow(actualPath)}`);
   }
   if (result.diff) {
     const diffPath = addSuffix(actualPath, '-diff', result.diffExtension);
     fs.writeFileSync(diffPath, result.diff);
+    output.push(`    Diff: ${c.yellow(diffPath)}`);
   }
 
   let message = goldenName + ' mismatch!';
@@ -134,7 +146,8 @@ function compare(goldenPath, outputPath, actual, goldenName) {
     message += ' ' + result.errorMessage;
   return {
     pass: false,
-    message: message + ' ' + messageSuffix
+    message: message + ' ' + messageSuffix,
+    formatter: () => output.join('\n'),
   };
 
   function ensureOutputDir() {
diff --git a/test/test.js b/test/test.js
index 688735ed08..7d5f63c431 100644
--- a/test/test.js
+++ b/test/test.js
@@ -124,7 +124,6 @@ if (process.env.CI && testRunner.hasFocusedTestsOrSuites()) {
 new Reporter(testRunner, {
   verbose: process.argv.includes('--verbose'),
   summary: !process.argv.includes('--verbose'),
-  projectFolder: utils.projectRoot(),
   showSlowTests: process.env.CI ? 5 : 0,
   showSkippedTests: 10,
 });
diff --git a/utils/testrunner/Matchers.js b/utils/testrunner/Matchers.js
index 000751d43c..b9273ca509 100644
--- a/utils/testrunner/Matchers.js
+++ b/utils/testrunner/Matchers.js
@@ -14,7 +14,11 @@
  * limitations under the License.
  */
 
-module.exports = class Matchers {
+const {getCallerLocation} = require('./utils.js');
+const colors = require('colors/safe');
+const Diff = require('text-diff');
+
+class Matchers {
   constructor(customMatchers = {}) {
     this._matchers = {};
     Object.assign(this._matchers, DefaultMatchers);
@@ -26,99 +30,202 @@ module.exports = class Matchers {
     this._matchers[name] = matcher;
   }
 
-  expect(value) {
-    return new Expect(value, this._matchers);
+  expect(received) {
+    return new Expect(received, this._matchers);
   }
 };
 
+class MatchError extends Error {
+  constructor(message, formatter) {
+    super(message);
+    this.name = this.constructor.name;
+    this.formatter = formatter;
+    this.location = getCallerLocation(__filename);
+    Error.captureStackTrace(this, this.constructor);
+  }
+}
+
+module.exports = {Matchers, MatchError};
+
 class Expect {
-  constructor(value, matchers) {
+  constructor(received, matchers) {
     this.not = {};
     this.not.not = this;
     for (const matcherName of Object.keys(matchers)) {
       const matcher = matchers[matcherName];
-      this[matcherName] = applyMatcher.bind(null, matcherName, matcher, false /* inverse */, value);
-      this.not[matcherName] = applyMatcher.bind(null, matcherName, matcher, true /* inverse */, value);
+      this[matcherName] = applyMatcher.bind(null, matcherName, matcher, false /* inverse */, received);
+      this.not[matcherName] = applyMatcher.bind(null, matcherName, matcher, true /* inverse */, received);
     }
 
-    function applyMatcher(matcherName, matcher, inverse, value, ...args) {
-      const result = matcher.call(null, value, ...args);
+    function applyMatcher(matcherName, matcher, inverse, received, ...args) {
+      const result = matcher.call(null, received, ...args);
       const message = `expect.${inverse ? 'not.' : ''}${matcherName} failed` + (result.message ? `: ${result.message}` : '');
       if (result.pass === inverse)
-        throw new Error(message);
+        throw new MatchError(message, result.formatter || defaultFormatter.bind(null, received));
     }
   }
 }
 
+function defaultFormatter(received) {
+  return `Received: ${colors.red(JSON.stringify(received))}`;
+}
+
+function stringFormatter(received, expected) {
+  const diff = new Diff();
+  const result = diff.main(expected, received);
+  diff.cleanupSemantic(result);
+  const highlighted = result.map(([type, text]) => {
+    if (type === -1)
+      return colors.bgRed(text);
+    if (type === 1)
+      return colors.bgGreen.black(text);
+    return text;
+  }).join('');
+  const output = [
+    `Expected: ${expected}`,
+    `Received: ${highlighted}`,
+  ];
+  for (let i = 0; i < Math.min(expected.length, received.length); ++i) {
+    if (expected[i] !== received[i]) {
+      const padding = ' '.repeat('Expected: '.length);
+      const firstDiffCharacter = '~'.repeat(i) + '^';
+      output.push(colors.red(padding + firstDiffCharacter));
+      break;
+    }
+  }
+  return output.join('\n');
+}
+
+function objectFormatter(received, expected) {
+  const receivedLines = received.split('\n');
+  const expectedLines = expected.split('\n');
+  const encodingMap = new Map();
+  const decodingMap = new Map();
+
+  const doEncodeLines = (lines) => {
+    let encoded = '';
+    for (const line of lines) {
+      let code = encodingMap.get(line);
+      if (!code) {
+        code = String.fromCodePoint(encodingMap.size);
+        encodingMap.set(line, code);
+        decodingMap.set(code, line);
+      }
+      encoded += code;
+    }
+    return encoded;
+  };
+
+  const doDecodeLines = (text) => {
+    let decoded = [];
+    for (const codepoint of [...text])
+      decoded.push(decodingMap.get(codepoint));
+    return decoded;
+  }
+
+  let receivedEncoded = doEncodeLines(received.split('\n'));
+  let expectedEncoded = doEncodeLines(expected.split('\n'));
+
+  const diff = new Diff();
+  const result = diff.main(expectedEncoded, receivedEncoded);
+  diff.cleanupSemantic(result);
+
+  const highlighted = result.map(([type, text]) => {
+    const lines = doDecodeLines(text);
+    if (type === -1)
+      return lines.map(line => '-   ' + colors.bgRed(line));
+    if (type === 1)
+      return lines.map(line => '+   ' + colors.bgGreen.black(line));
+    return lines.map(line => '    ' + line);
+  }).flat().join('\n');
+  return `Received:\n${highlighted}`;
+}
+
+function toBeFormatter(received, expected) {
+  if (typeof expected === 'string' && typeof received === 'string') {
+    return stringFormatter(JSON.stringify(received), JSON.stringify(expected));
+  }
+  return [
+    `Expected: ${JSON.stringify(expected)}`,
+    `Received: ${colors.red(JSON.stringify(received))}`,
+  ].join('\n');
+}
+
 const DefaultMatchers = {
-  toBe: function(value, other, message) {
-    message = message || `${value} == ${other}`;
-    return { pass: value === other, message };
+  toBe: function(received, expected, message) {
+    message = message || `${received} == ${expected}`;
+    return { pass: received === expected, message, formatter: toBeFormatter.bind(null, received, expected) };
   },
 
-  toBeFalsy: function(value, message) {
-    message = message || `${value}`;
-    return { pass: !value, message };
+  toBeFalsy: function(received, message) {
+    message = message || `${received}`;
+    return { pass: !received, message };
   },
 
-  toBeTruthy: function(value, message) {
-    message = message || `${value}`;
-    return { pass: !!value, message };
+  toBeTruthy: function(received, message) {
+    message = message || `${received}`;
+    return { pass: !!received, message };
   },
 
-  toBeGreaterThan: function(value, other, message) {
-    message = message || `${value} > ${other}`;
-    return { pass: value > other, message };
+  toBeGreaterThan: function(received, other, message) {
+    message = message || `${received} > ${other}`;
+    return { pass: received > other, message };
   },
 
-  toBeGreaterThanOrEqual: function(value, other, message) {
-    message = message || `${value} >= ${other}`;
-    return { pass: value >= other, message };
+  toBeGreaterThanOrEqual: function(received, other, message) {
+    message = message || `${received} >= ${other}`;
+    return { pass: received >= other, message };
   },
 
-  toBeLessThan: function(value, other, message) {
-    message = message || `${value} < ${other}`;
-    return { pass: value < other, message };
+  toBeLessThan: function(received, other, message) {
+    message = message || `${received} < ${other}`;
+    return { pass: received < other, message };
   },
 
-  toBeLessThanOrEqual: function(value, other, message) {
-    message = message || `${value} <= ${other}`;
-    return { pass: value <= other, message };
+  toBeLessThanOrEqual: function(received, other, message) {
+    message = message || `${received} <= ${other}`;
+    return { pass: received <= other, message };
   },
 
-  toBeNull: function(value, message) {
-    message = message || `${value} == null`;
-    return { pass: value === null, message };
+  toBeNull: function(received, message) {
+    message = message || `${received} == null`;
+    return { pass: received === null, message };
   },
 
-  toContain: function(value, other, message) {
-    message = message || `${value} ⊇ ${other}`;
-    return { pass: value.includes(other), message };
+  toContain: function(received, other, message) {
+    message = message || `${received} ⊇ ${other}`;
+    return { pass: received.includes(other), message };
   },
 
-  toEqual: function(value, other, message) {
-    const valueJson = stringify(value);
-    const otherJson = stringify(other);
-    message = message || `\n${valueJson} ≈ ${otherJson}`;
-    return { pass: valueJson === otherJson, message };
+  toEqual: function(received, other, message) {
+    let receivedJson = stringify(received);
+    let otherJson = stringify(other);
+    let formatter = objectFormatter.bind(null, receivedJson, otherJson);
+    if (receivedJson.length < 40 && otherJson.length < 40) {
+      receivedJson = receivedJson.split('\n').map(line => line.trim()).join(' ');
+      otherJson = otherJson.split('\n').map(line => line.trim()).join(' ');
+      formatter = stringFormatter.bind(null, receivedJson, otherJson);
+    }
+    message = message || `\n${receivedJson} ≈ ${otherJson}`;
+    return { pass: receivedJson === otherJson, message, formatter };
   },
 
-  toBeCloseTo: function(value, other, precision, message) {
+  toBeCloseTo: function(received, other, precision, message) {
     return {
-      pass: Math.abs(value - other) < Math.pow(10, -precision),
+      pass: Math.abs(received - other) < Math.pow(10, -precision),
       message
     };
   },
 
-  toBeInstanceOf: function(value, other, message) {
-    message = message || `${value.constructor.name} instanceof ${other.name}`;
-    return { pass: value instanceof other, message };
+  toBeInstanceOf: function(received, other, message) {
+    message = message || `${received.constructor.name} instanceof ${other.name}`;
+    return { pass: received instanceof other, message };
   },
 };
 
 function stringify(value) {
   function stabilize(key, object) {
-    if (typeof object !== 'object' || object === undefined || object === null)
+    if (typeof object !== 'object' || object === undefined || object === null || Array.isArray(object))
       return object;
     const result = {};
     for (const key of Object.keys(object).sort())
diff --git a/utils/testrunner/Reporter.js b/utils/testrunner/Reporter.js
index 30d3425e56..f40b7b6ee8 100644
--- a/utils/testrunner/Reporter.js
+++ b/utils/testrunner/Reporter.js
@@ -14,24 +14,20 @@
  * limitations under the License.
  */
 
-const RED_COLOR = '\x1b[31m';
-const GREEN_COLOR = '\x1b[32m';
-const GRAY_COLOR = '\x1b[90m';
-const YELLOW_COLOR = '\x1b[33m';
-const MAGENTA_COLOR = '\x1b[35m';
-const RESET_COLOR = '\x1b[0m';
+const fs = require('fs');
+const colors = require('colors/safe');
+const {MatchError} = require('./Matchers.js');
 
 class Reporter {
   constructor(runner, options = {}) {
     const {
-      projectFolder = null,
       showSlowTests = 3,
       showSkippedTests = Infinity,
       verbose = false,
       summary = true,
     } = options;
+    this._filePathToLines = new Map();
     this._runner = runner;
-    this._projectFolder = projectFolder;
     this._showSlowTests = showSlowTests;
     this._showSkippedTests = showSkippedTests;
     this._verbose = verbose;
@@ -48,19 +44,20 @@ class Reporter {
     this._testCounter = 0;
     this._timestamp = Date.now();
     const allTests = this._runner.tests();
-    if (allTests.length === runnableTests.length)
-      console.log(`Running all ${YELLOW_COLOR}${runnableTests.length}${RESET_COLOR} tests on ${YELLOW_COLOR}${this._runner.parallel()}${RESET_COLOR} worker(s):\n`);
-    else
-      console.log(`Running ${YELLOW_COLOR}${runnableTests.length}${RESET_COLOR} focused tests out of total ${YELLOW_COLOR}${allTests.length}${RESET_COLOR} on ${YELLOW_COLOR}${this._runner.parallel()}${RESET_COLOR} worker(s):\n`);
+    if (allTests.length === runnableTests.length) {
+      console.log(`Running all ${colors.yellow(runnableTests.length)} tests on ${colors.yellow(this._runner.parallel())} worker${this._runner.parallel() > 1 ? 's' : ''}:\n`);
+    } else {
+      console.log(`Running ${colors.yellow(runnableTests.length)} focused tests out of total ${colors.yellow(allTests.length)} on ${colors.yellow(this._runner.parallel())} worker${this._runner.parallel() > 1 ? 's' : ''}:\n`);
+    }
   }
 
   _printTermination(result, message, error) {
-    console.log(`${RED_COLOR}## ${result.toUpperCase()} ##${RESET_COLOR}`);
+    console.log(colors.red(`## ${result.toUpperCase()} ##`));
     console.log('Message:');
-    console.log(`  ${RED_COLOR}${message}${RESET_COLOR}`);
+    console.log(`  ${colors.red(message)}`);
     if (error && error.stack) {
       console.log('Stack:');
-      console.log(error.stack.split('\n').map(line => '  ' + line).join('\n'));
+      console.log(padLines(error.stack, 2));
     }
     console.log('WORKERS STATE');
     const workerIds = Array.from(this._workersState.keys());
@@ -69,23 +66,25 @@ class Reporter {
       const {isRunning, test} = this._workersState.get(workerId);
       let description = '';
       if (isRunning)
-        description = `${YELLOW_COLOR}RUNNING${RESET_COLOR}`;
+        description = colors.yellow('RUNNING');
       else if (test.result === 'ok')
-        description = `${GREEN_COLOR}OK${RESET_COLOR}`;
+        description = colors.green('OK');
       else if (test.result === 'skipped')
-        description = `${YELLOW_COLOR}SKIPPED${RESET_COLOR}`;
+        description = colors.yellow('SKIPPED');
       else if (test.result === 'failed')
-        description = `${RED_COLOR}FAILED${RESET_COLOR}`;
+        description = colors.red('FAILED');
       else if (test.result === 'crashed')
-        description = `${RED_COLOR}CRASHED${RESET_COLOR}`;
+        description = colors.red('CRASHED');
       else if (test.result === 'timedout')
-        description = `${RED_COLOR}TIMEDOUT${RESET_COLOR}`;
+        description = colors.red('TIMEDOUT');
       else if (test.result === 'terminated')
-        description = `${MAGENTA_COLOR}TERMINATED${RESET_COLOR}`;
+        description = colors.magenta('TERMINATED');
       else
-        description = `${RED_COLOR}<UNKNOWN>${RESET_COLOR}`;
-      console.log(`  ${workerId}: [${description}] ${test.fullName} (${formatTestLocation(test)})`);
+        description = colors.red('<UNKNOWN>');
+      console.log(`  ${workerId}: [${description}] ${test.fullName} (${formatLocation(test.location)})`);
     }
+    console.log('');
+    console.log('');
     process.exitCode = 2;
   }
 
@@ -105,24 +104,7 @@ class Reporter {
       console.log('\nFailures:');
       for (let i = 0; i < failedTests.length; ++i) {
         const test = failedTests[i];
-        console.log(`${i + 1}) ${test.fullName} (${formatTestLocation(test)})`);
-        if (test.result === 'timedout') {
-          console.log('  Message:');
-          console.log(`    ${RED_COLOR}Timeout Exceeded ${this._runner.timeout()}ms${RESET_COLOR}`);
-        } else if (test.result === 'crashed') {
-          console.log('  Message:');
-          console.log(`    ${RED_COLOR}CRASHED${RESET_COLOR}`);
-        } else {
-          console.log('  Message:');
-          console.log(`    ${RED_COLOR}${test.error.message || test.error}${RESET_COLOR}`);
-          console.log('  Stack:');
-          if (test.error.stack)
-            console.log(this._beautifyStack(test.error.stack));
-        }
-        if (test.output) {
-          console.log('  Output:');
-          console.log(test.output.split('\n').map(line => '    ' + line).join('\n'));
-        }
+        this._printVerboseTestResult(i + 1, test);
         console.log('');
       }
     }
@@ -132,12 +114,12 @@ class Reporter {
       if (skippedTests.length > 0) {
         console.log('\nSkipped:');
         skippedTests.slice(0, this._showSkippedTests).forEach((test, index) => {
-          console.log(`${index + 1}) ${test.fullName} (${formatTestLocation(test)})`);
+          console.log(`${index + 1}) ${test.fullName} (${formatLocation(test.location)})`);
         });
       }
       if (this._showSkippedTests < skippedTests.length) {
         console.log('');
-        console.log(`... and ${YELLOW_COLOR}${skippedTests.length - this._showSkippedTests}${RESET_COLOR} more skipped tests ...`);
+        console.log(`... and ${colors.yellow(skippedTests.length - this._showSkippedTests)} more skipped tests ...`);
       }
     }
 
@@ -151,7 +133,7 @@ class Reporter {
       for (let i = 0; i < slowTests.length; ++i) {
         const test = slowTests[i];
         const duration = test.endTimestamp - test.startTimestamp;
-        console.log(`  (${i + 1}) ${YELLOW_COLOR}${duration / 1000}s${RESET_COLOR} - ${test.fullName} (${formatTestLocation(test)})`);
+        console.log(`  (${i + 1}) ${colors.yellow((duration / 1000) + 's')} - ${test.fullName} (${formatLocation(test.location)})`);
       }
     }
 
@@ -160,39 +142,18 @@ class Reporter {
     const okTestsLength = executedTests.length - failedTests.length - skippedTests.length;
     let summaryText = '';
     if (failedTests.length || skippedTests.length) {
-      const summary = [`ok - ${GREEN_COLOR}${okTestsLength}${RESET_COLOR}`];
+      const summary = [`ok - ${colors.green(okTestsLength)}`];
       if (failedTests.length)
-        summary.push(`failed - ${RED_COLOR}${failedTests.length}${RESET_COLOR}`);
+        summary.push(`failed - ${colors.red(failedTests.length)}`);
       if (skippedTests.length)
-        summary.push(`skipped - ${YELLOW_COLOR}${skippedTests.length}${RESET_COLOR}`);
-      summaryText = `(${summary.join(', ')})`;
+        summary.push(`skipped - ${colors.yellow(skippedTests.length)}`);
+      summaryText = ` (${summary.join(', ')})`;
     }
 
-    console.log(`\nRan ${executedTests.length} ${summaryText} of ${tests.length} test(s)`);
+    console.log(`\nRan ${executedTests.length}${summaryText} of ${tests.length} test${tests.length > 1 ? 's' : ''}`);
     const milliseconds = Date.now() - this._timestamp;
     const seconds = milliseconds / 1000;
-    console.log(`Finished in ${YELLOW_COLOR}${seconds}${RESET_COLOR} seconds`);
-  }
-
-  _beautifyStack(stack) {
-    if (!this._projectFolder)
-      return stack;
-    const lines = stack.split('\n').map(line => '    ' + line);
-    // Find last stack line that include testrunner code.
-    let index = 0;
-    while (index < lines.length && !lines[index].includes(__dirname))
-      ++index;
-    while (index < lines.length && lines[index].includes(__dirname))
-      ++index;
-    if (index >= lines.length)
-      return stack;
-    const line = lines[index];
-    const fromIndex = line.lastIndexOf(this._projectFolder) + this._projectFolder.length;
-    let toIndex = line.lastIndexOf(')');
-    if (toIndex === -1)
-      toIndex = line.length;
-    lines[index] = line.substring(0, fromIndex) + YELLOW_COLOR + line.substring(fromIndex, toIndex) + RESET_COLOR + line.substring(toIndex);
-    return lines.join('\n');
+    console.log(`Finished in ${colors.yellow(seconds)} seconds`);
   }
 
   _onTestStarted(test, workerId) {
@@ -203,55 +164,92 @@ class Reporter {
     this._workersState.set(workerId, {test, isRunning: false});
     if (this._verbose) {
       ++this._testCounter;
-      let prefix = `${this._testCounter})`;
-      if (this._runner.parallel() > 1)
-        prefix += ` ${GRAY_COLOR}[worker = ${workerId}]${RESET_COLOR}`;
-      if (test.result === 'ok') {
-        console.log(`${prefix} ${GREEN_COLOR}[ OK ]${RESET_COLOR} ${test.fullName} (${formatTestLocation(test)})`);
-      } else if (test.result === 'terminated') {
-        console.log(`${prefix} ${MAGENTA_COLOR}[ TERMINATED ]${RESET_COLOR} ${test.fullName} (${formatTestLocation(test)})`);
-      } else if (test.result === 'crashed') {
-        console.log(`${prefix} ${RED_COLOR}[ CRASHED ]${RESET_COLOR} ${test.fullName} (${formatTestLocation(test)})`);
-      } else if (test.result === 'skipped') {
-        console.log(`${prefix} ${YELLOW_COLOR}[SKIP]${RESET_COLOR} ${test.fullName} (${formatTestLocation(test)})`);
-      } else if (test.result === 'failed') {
-        console.log(`${prefix} ${RED_COLOR}[FAIL]${RESET_COLOR} ${test.fullName} (${formatTestLocation(test)})`);
-        console.log('  Message:');
-        console.log(`    ${RED_COLOR}${test.error.message || test.error}${RESET_COLOR}`);
-        console.log('  Stack:');
-        if (test.error.stack)
-          console.log(this._beautifyStack(test.error.stack));
-        if (test.output) {
-          console.log('  Output:');
-          console.log(test.output.split('\n').map(line => '    ' + line).join('\n'));
-        }
-      } else if (test.result === 'timedout') {
-        console.log(`${prefix} ${RED_COLOR}[TIME]${RESET_COLOR} ${test.fullName} (${formatTestLocation(test)})`);
-        console.log('  Message:');
-        console.log(`    ${RED_COLOR}Timeout Exceeded ${this._runner.timeout()}ms${RESET_COLOR}`);
-      }
+      this._printVerboseTestResult(this._testCounter, test, workerId);
     } else {
       if (test.result === 'ok')
-        process.stdout.write(`${GREEN_COLOR}.${RESET_COLOR}`);
+        process.stdout.write(colors.green('.'));
       else if (test.result === 'skipped')
-        process.stdout.write(`${YELLOW_COLOR}*${RESET_COLOR}`);
+        process.stdout.write(colors.yellow('*'));
       else if (test.result === 'failed')
-        process.stdout.write(`${RED_COLOR}F${RESET_COLOR}`);
+        process.stdout.write(colors.red('F'));
       else if (test.result === 'crashed')
-        process.stdout.write(`${RED_COLOR}C${RESET_COLOR}`);
+        process.stdout.write(colors.red('C'));
       else if (test.result === 'terminated')
-        process.stdout.write(`${MAGENTA_COLOR}.${RESET_COLOR}`);
+        process.stdout.write(colors.magenta('.'));
       else if (test.result === 'timedout')
-        process.stdout.write(`${RED_COLOR}T${RESET_COLOR}`);
+        process.stdout.write(colors.red('T'));
+    }
+  }
+
+  _printVerboseTestResult(resultIndex, test, workerId = undefined) {
+    let prefix = `${resultIndex})`;
+    if (this._runner.parallel() > 1 && workerId !== undefined)
+      prefix += ' ' + colors.gray(`[worker = ${workerId}]`);
+    if (test.result === 'ok') {
+      console.log(`${prefix} ${colors.green('[OK]')} ${test.fullName} (${formatLocation(test.location)})`);
+    } else if (test.result === 'terminated') {
+      console.log(`${prefix} ${colors.magenta('[TERMINATED]')} ${test.fullName} (${formatLocation(test.location)})`);
+    } else if (test.result === 'crashed') {
+      console.log(`${prefix} ${colors.red('[CRASHED]')} ${test.fullName} (${formatLocation(test.location)})`);
+    } else if (test.result === 'skipped') {
+      console.log(`${prefix} ${colors.yellow('[SKIP]')} ${test.fullName} (${formatLocation(test.location)})`);
+    } else if (test.result === 'timedout') {
+      console.log(`${prefix} ${colors.red(`[TIMEOUT ${test.timeout}ms]`)} ${test.fullName} (${formatLocation(test.location)})`);
+    } else if (test.result === 'failed') {
+      console.log(`${prefix} ${colors.red('[FAIL]')} ${test.fullName} (${formatLocation(test.location)})`);
+      if (test.error instanceof MatchError) {
+        let lines = this._filePathToLines.get(test.error.location.filePath);
+        if (!lines) {
+          try {
+            lines = fs.readFileSync(test.error.location.filePath, 'utf8').split('\n');
+          } catch (e) {
+            lines = [];
+          }
+          this._filePathToLines.set(test.error.location.filePath, lines);
+        }
+        const lineNumber = test.error.location.lineNumber;
+        if (lineNumber < lines.length) {
+          const lineNumberLength = (lineNumber + 1 + '').length;
+          const FROM = Math.max(test.location.lineNumber - 1, lineNumber - 5);
+          const snippet = lines.slice(FROM, lineNumber).map((line, index) => `    ${(FROM + index + 1 + '').padStart(lineNumberLength, ' ')} | ${line}`).join('\n');
+          const pointer = `    ` + ' '.repeat(lineNumberLength) + '   ' + '~'.repeat(test.error.location.columnNumber - 1) + '^';
+          console.log('\n' + snippet + '\n' + colors.grey(pointer) + '\n');
+        }
+        console.log(padLines(test.error.formatter(), 4));
+        console.log('');
+      } else {
+        console.log('  Message:');
+        console.log(`    ${colors.red(test.error.message || test.error)}`);
+        if (test.error.stack) {
+          console.log('  Stack:');
+          let stack = test.error.stack;
+          // Highlight first test location, if any.
+          const match = stack.match(new RegExp(test.location.filePath + ':(\\d+):(\\d+)'));
+          if (match) {
+            const [, line, column] = match;
+            const fileName = `${test.location.fileName}:${line}:${column}`;
+            stack = stack.substring(0, match.index) + stack.substring(match.index).replace(fileName, colors.yellow(fileName));
+          }
+          console.log(padLines(stack, 4));
+        }
+      }
+      if (test.output) {
+        console.log('  Output:');
+        console.log(padLines(test.output, 4));
+      }
     }
   }
 }
 
-function formatTestLocation(test) {
-  const location = test.location;
+function formatLocation(location) {
   if (!location)
     return '';
-  return `${YELLOW_COLOR}${location.fileName}:${location.lineNumber}:${location.columnNumber}${RESET_COLOR}`;
+  return colors.yellow(`${location.fileName}:${location.lineNumber}:${location.columnNumber}`);
+}
+
+function padLines(text, spaces = 0) {
+  const indent = ' '.repeat(spaces);
+  return text.split('\n').map(line => indent + line).join('\n');
 }
 
 module.exports = Reporter;
diff --git a/utils/testrunner/TestRunner.js b/utils/testrunner/TestRunner.js
index 7598eb8c76..74793fc994 100644
--- a/utils/testrunner/TestRunner.js
+++ b/utils/testrunner/TestRunner.js
@@ -23,6 +23,7 @@ const Multimap = require('./Multimap');
 const fs = require('fs');
 const {SourceMapSupport} = require('./SourceMapSupport');
 const debug = require('debug');
+const {getCallerLocation} = require('./utils');
 
 const INFINITE_TIMEOUT = 2147483647;
 
@@ -41,7 +42,7 @@ class UserCallback {
     });
 
     this.timeout = timeout;
-    this.location = this._getLocation();
+    this.location = getCallerLocation(__filename);
   }
 
   async run(...args) {
@@ -62,35 +63,6 @@ class UserCallback {
     }
   }
 
-  _getLocation() {
-    const error = new Error();
-    const stackFrames = error.stack.split('\n').slice(1);
-    // Find first stackframe that doesn't point to this file.
-    for (let frame of stackFrames) {
-      frame = frame.trim();
-      if (!frame.startsWith('at '))
-        return null;
-      if (frame.endsWith(')')) {
-        const from = frame.indexOf('(');
-        frame = frame.substring(from + 1, frame.length - 1);
-      } else {
-        frame = frame.substring('at '.length);
-      }
-
-      const match = frame.match(/^(.*):(\d+):(\d+)$/);
-      if (!match)
-        return null;
-      const filePath = match[1];
-      const lineNumber = parseInt(match[2], 10);
-      const columnNumber = parseInt(match[3], 10);
-      if (filePath === __filename)
-        continue;
-      const fileName = filePath.split(path.sep).pop();
-      return { fileName, filePath, lineNumber, columnNumber };
-    }
-    return null;
-  }
-
   terminate() {
     this._terminateCallback(TerminatedError);
   }
@@ -119,6 +91,7 @@ class Test {
     this.declaredMode = declaredMode;
     this._userCallback = new UserCallback(callback, timeout);
     this.location = this._userCallback.location;
+    this.timeout = timeout;
 
     // Test results
     this.result = null;
@@ -422,7 +395,10 @@ class TestRunner extends EventEmitter {
     const runnableTests = this._runnableTests();
     this.emit(TestRunner.Events.Started, runnableTests);
     this._runningPass = new TestPass(this, this._rootSuite, runnableTests, this._parallel, this._breakOnFailure);
-    const termination = await this._runningPass.run();
+    const termination = await this._runningPass.run().catch(e => {
+      console.error(e);
+      throw e;
+    });
     this._runningPass = null;
     const result = {};
     if (termination) {
diff --git a/utils/testrunner/index.js b/utils/testrunner/index.js
index 998ea3d150..84f9410671 100644
--- a/utils/testrunner/index.js
+++ b/utils/testrunner/index.js
@@ -16,6 +16,6 @@
 
 const TestRunner = require('./TestRunner');
 const Reporter = require('./Reporter');
-const Matchers = require('./Matchers');
+const {Matchers} = require('./Matchers');
 
 module.exports = { TestRunner, Reporter, Matchers };
diff --git a/utils/testrunner/test/test.js b/utils/testrunner/test/test.js
index d4f6b461a3..f18570038c 100644
--- a/utils/testrunner/test/test.js
+++ b/utils/testrunner/test/test.js
@@ -8,7 +8,6 @@ require('./testrunner.spec.js').addTests({testRunner, expect});
 new Reporter(testRunner, {
   verbose: process.argv.includes('--verbose'),
   summary: true,
-  projectFolder: require('path').join(__dirname, '..'),
   showSlowTests: 0,
 });
 testRunner.run();
diff --git a/utils/testrunner/utils.js b/utils/testrunner/utils.js
new file mode 100644
index 0000000000..9934a7d7be
--- /dev/null
+++ b/utils/testrunner/utils.js
@@ -0,0 +1,32 @@
+const path = require('path');
+
+module.exports = {
+  getCallerLocation: function(filename) {
+    const error = new Error();
+    const stackFrames = error.stack.split('\n').slice(1);
+    // Find first stackframe that doesn't point to this file.
+    for (let frame of stackFrames) {
+      frame = frame.trim();
+      if (!frame.startsWith('at '))
+        return null;
+      if (frame.endsWith(')')) {
+        const from = frame.indexOf('(');
+        frame = frame.substring(from + 1, frame.length - 1);
+      } else {
+        frame = frame.substring('at '.length);
+      }
+
+      const match = frame.match(/^(.*):(\d+):(\d+)$/);
+      if (!match)
+        return null;
+      const filePath = match[1];
+      const lineNumber = parseInt(match[2], 10);
+      const columnNumber = parseInt(match[3], 10);
+      if (filePath === __filename || filePath === filename)
+        continue;
+      const fileName = filePath.split(path.sep).pop();
+      return { fileName, filePath, lineNumber, columnNumber };
+    }
+    return null;
+  },
+};