From 4f974701ff45f785f761af3f9c2b13242f980ce4 Mon Sep 17 00:00:00 2001
From: Codebuff Contributor <contributor@codebuff.com>
Date: Wed, 20 May 2026 08:28:13 +0600
Subject: [PATCH 1/2] test_runner: print coverage report with dot reporter

---
 lib/internal/test_runner/reporter/dot.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/internal/test_runner/reporter/dot.js b/lib/internal/test_runner/reporter/dot.js
index 45ff047bc4e5a0..15645695f1597b 100644
--- a/lib/internal/test_runner/reporter/dot.js
+++ b/lib/internal/test_runner/reporter/dot.js
@@ -4,6 +4,7 @@ const {
   MathMax,
 } = primordials;
 const colors = require('internal/util/colors');
+const { getCoverageReport } = require('internal/test_runner/utils');
 const { formatTestReport } = require('internal/test_runner/reporter/utils');
 
 module.exports = async function* dot(source) {
@@ -18,6 +19,9 @@ module.exports = async function* dot(source) {
       yield `${colors.red}X${colors.reset}`;
       ArrayPrototypePush(failedTests, data);
     }
+    if (type === 'test:coverage') {
+      yield getCoverageReport('', data.summary, '', '', true);
+    }
     if ((type === 'test:fail' || type === 'test:pass') && ++count === columns) {
       yield '\n';
 

From e38e30151649c0455aebcbbd0903e7ac091296bb Mon Sep 17 00:00:00 2001
From: Codebuff Contributor <contributor@codebuff.com>
Date: Wed, 20 May 2026 08:50:03 +0600
Subject: [PATCH 2/2] test_runner: fix branch count when ignore comment present

---
 lib/internal/test_runner/coverage.js          |  6 ++---
 .../test-runner-coverage-thresholds.js        |  6 ++---
 test/parallel/test-runner-coverage.js         | 26 +++++++++----------
 3 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/lib/internal/test_runner/coverage.js b/lib/internal/test_runner/coverage.js
index 8fa9c872568d1e..48ee23085ac683 100644
--- a/lib/internal/test_runner/coverage.js
+++ b/lib/internal/test_runner/coverage.js
@@ -196,11 +196,11 @@ class TestCoverage {
             ArrayPrototypePush(branchReports, {
               __proto__: null,
               line: range.lines[0]?.line,
-              count: range.count,
+              count: range.count !== 0 ? range.count :
+                     range.ignoredLines > 0 ? 1 : 0,
             });
 
-            if (range.count !== 0 ||
-                range.ignoredLines === range.lines.length) {
+            if (range.count !== 0 || range.ignoredLines > 0) {
               branchesCovered++;
             }
 
diff --git a/test/parallel/test-runner-coverage-thresholds.js b/test/parallel/test-runner-coverage-thresholds.js
index e45e1191299ca7..7bb6029fa96b97 100644
--- a/test/parallel/test-runner-coverage-thresholds.js
+++ b/test/parallel/test-runner-coverage-thresholds.js
@@ -29,12 +29,12 @@ function getTapCoverageFixtureReport() {
     '# test              |        |          |         | ',
     '#  fixtures         |        |          |         | ',
     '#   test-runner     |        |          |         | ',
-    '#    coverage.js    |  78.65 |    38.46 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
+    '#    coverage.js    |  78.65 |    46.15 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
     '#    invalid-tap.js | 100.00 |   100.00 |  100.00 | ',
     '#   v8-coverage     |        |          |         | ',
     '#    throw.js       |  71.43 |    50.00 |  100.00 | 5-6',
     '# --------------------------------------------------------------------------------------------',
-    '# all files         |  78.35 |    43.75 |   60.00 | ',
+    '# all files         |  78.35 |    50.00 |   60.00 | ',
     '# --------------------------------------------------------------------------------------------',
     '# end of coverage report',
   ].join('\n');
@@ -53,7 +53,7 @@ const reporter = fixtures.fileURL('test-runner/custom_reporters/coverage.mjs');
 const coverages = [
   { flag: '--test-coverage-lines', name: 'line', actual: 78.35 },
   { flag: '--test-coverage-functions', name: 'function', actual: 60.00 },
-  { flag: '--test-coverage-branches', name: 'branch', actual: 43.75 },
+  { flag: '--test-coverage-branches', name: 'branch', actual: 50.00 },
 ];
 
 for (const coverage of coverages) {
diff --git a/test/parallel/test-runner-coverage.js b/test/parallel/test-runner-coverage.js
index 5a8f3d743538cb..e8f65bf826d27d 100644
--- a/test/parallel/test-runner-coverage.js
+++ b/test/parallel/test-runner-coverage.js
@@ -31,12 +31,12 @@ function getTapCoverageFixtureReport() {
     '# test              |        |          |         | ',
     '#  fixtures         |        |          |         | ',
     '#   test-runner     |        |          |         | ',
-    '#    coverage.js    |  78.65 |    38.46 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
+    '#    coverage.js    |  78.65 |    46.15 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
     '#    invalid-tap.js | 100.00 |   100.00 |  100.00 | ',
     '#   v8-coverage     |        |          |         | ',
     '#    throw.js       |  71.43 |    50.00 |  100.00 | 5-6',
     '# --------------------------------------------------------------------------------------------',
-    '# all files         |  78.35 |    43.75 |   60.00 | ',
+    '# all files         |  78.35 |    50.00 |   60.00 | ',
     '# --------------------------------------------------------------------------------------------',
     '# end of coverage report',
   ].join('\n');
@@ -59,12 +59,12 @@ function getSpecCoverageFixtureReport() {
     '\u2139 test              |        |          |         | ',
     '\u2139  fixtures         |        |          |         | ',
     '\u2139   test-runner     |        |          |         | ',
-    '\u2139    coverage.js    |  78.65 |    38.46 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
+    '\u2139    coverage.js    |  78.65 |    46.15 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
     '\u2139    invalid-tap.js | 100.00 |   100.00 |  100.00 | ',
     '\u2139   v8-coverage     |        |          |         | ',
     '\u2139    throw.js       |  71.43 |    50.00 |  100.00 | 5-6',
     '\u2139 --------------------------------------------------------------------------------------------',
-    '\u2139 all files         |  78.35 |    43.75 |   60.00 | ',
+    '\u2139 all files         |  78.35 |    50.00 |   60.00 | ',
     '\u2139 --------------------------------------------------------------------------------------------',
     '\u2139 end of coverage report',
   ].join('\n');
@@ -309,7 +309,7 @@ test('coverage reports on lines, functions, and branches', skipIfNoInspector, as
 
   await t.test('reports on branch coverage', () => {
     const uncalledBranch = file.branches.find((b) => b.line === 6);
-    assert.strictEqual(uncalledBranch.count, 0);
+    assert.strictEqual(uncalledBranch.count, 1);
 
     const calledTwice = file.branches.find((b) => b.line === 35);
     assert.strictEqual(calledTwice.count, 2);
@@ -421,11 +421,11 @@ test('coverage with excluded files', skipIfNoInspector, () => {
     '# test           |        |          |         | ',
     '#  fixtures      |        |          |         | ',
     '#   test-runner  |        |          |         | ',
-    '#    coverage.js |  78.65 |    38.46 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
+    '#    coverage.js |  78.65 |    46.15 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
     '#   v8-coverage  |        |          |         | ',
     '#    throw.js    |  71.43 |    50.00 |  100.00 | 5-6',
     '# -----------------------------------------------------------------------------------------',
-    '# all files      |  78.13 |    40.00 |   60.00 | ',
+    '# all files      |  78.13 |    46.67 |   60.00 | ',
     '# -----------------------------------------------------------------------------------------',
     '# end of coverage report',
   ].join('\n');
@@ -458,11 +458,11 @@ test('coverage with included files', skipIfNoInspector, () => {
     '# test           |        |          |         | ',
     '#  fixtures      |        |          |         | ',
     '#   test-runner  |        |          |         | ',
-    '#    coverage.js |  78.65 |    38.46 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
+    '#    coverage.js |  78.65 |    46.15 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
     '#   v8-coverage  |        |          |         | ',
     '#    throw.js    |  71.43 |    50.00 |  100.00 | 5-6',
     '# -----------------------------------------------------------------------------------------',
-    '# all files      |  78.13 |    40.00 |   60.00 | ',
+    '# all files      |  78.13 |    46.67 |   60.00 | ',
     '# -----------------------------------------------------------------------------------------',
     '# end of coverage report',
   ].join('\n');
@@ -494,9 +494,9 @@ test('coverage with included and excluded files', skipIfNoInspector, () => {
     '# test           |        |          |         | ',
     '#  fixtures      |        |          |         | ',
     '#   test-runner  |        |          |         | ',
-    '#    coverage.js |  78.65 |    38.46 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
+    '#    coverage.js |  78.65 |    46.15 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
     '# -----------------------------------------------------------------------------------------',
-    '# all files      |  78.65 |    38.46 |   60.00 | ',
+    '# all files      |  78.65 |    46.15 |   60.00 | ',
     '# -----------------------------------------------------------------------------------------',
     '# end of coverage report',
   ].join('\n');
@@ -518,13 +518,13 @@ test('correctly prints the coverage report of files contained in parent director
     '# file              | line % | branch % | funcs % | uncovered lines',
     '# --------------------------------------------------------------------------------------------',
     '# ..                |        |          |         | ',
-    '#  coverage.js      |  78.65 |    38.46 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
+    '#  coverage.js      |  78.65 |    46.15 |   60.00 | 12-13 16-22 27 39 43-44 61-62 66-67 71-72',
     '#  invalid-tap.js   | 100.00 |   100.00 |  100.00 | ',
     '#  ..               |        |          |         | ',
     '#   v8-coverage     |        |          |         | ',
     '#    throw.js       |  71.43 |    50.00 |  100.00 | 5-6',
     '# --------------------------------------------------------------------------------------------',
-    '# all files         |  78.35 |    43.75 |   60.00 | ',
+    '# all files         |  78.35 |    50.00 |   60.00 | ',
     '# --------------------------------------------------------------------------------------------',
     '# end of coverage report',
   ].join('\n');