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test/fixtures/v8-coverage/combined_coverage/common.js

@@ -0,0 +1,69 @@
+'use strict';
+function fnA() {
+  let cnt = 0;
+
+  try {
+    cnt++;
+    throw new Error('boom');
+    cnt++;
+  } catch (err) {
+    cnt++;
+  } finally {
+    if (false) {
+
+    }
+
+    return cnt;
+  }
+  cnt++;
+}
+
+function fnB(arr) {
+  for (let i = 0; i < arr.length; ++i) {
+    if (i === 2) {
+      continue;
+    } else {
+      fnE(1);
+    }
+  }
+}
+
+function fnC(arg1, arg2) {
+  if (arg1 === 1) {
+    if (arg2 === 3) {
+      return -1;
+    }
+
+    if (arg2 === 4) {
+      return 3;
+    }
+
+    if (arg2 === 5) {
+      return 9;
+    }
+  }
+}
+
+function fnD(arg) {
+  let cnt = 0;
+
+  if (arg % 2 === 0) {
+    cnt++;
+  } else if (arg === 1) {
+    cnt++;
+  } else if (arg === 3) {
+    cnt++;
+  } else {
+    fnC(1, 5);
+  }
+
+  return cnt;
+}
+
+function fnE(arg) {
+  const a = arg ?? 5;
+
+  return a;
+}
+
+module.exports = { fnA, fnB, fnC, fnD, fnE };

test/fixtures/v8-coverage/combined_coverage/first.test.js

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+'use strict';
+const { test } = require('node:test');
+const common = require('./common');
+
+function notCalled() {
+}
+
+test('first 1', () => {
+  common.fnA();
+  common.fnD(100);
+  common.fnB([1, 2, 3]);
+});

test/fixtures/v8-coverage/combined_coverage/second.test.js

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+'use strict';
+const { test } = require('node:test');
+const common = require('./common');
+
+test('second 1', () => {
+  common.fnB([1, 2, 3]);
+  common.fnD(3);
+});

test/fixtures/v8-coverage/combined_coverage/third.test.js

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+'use strict';
+const assert = require('node:assert');
+const { unlinkSync, writeFileSync } = require('node:fs')
+const { join } = require('node:path');
+const { test } = require('node:test');
+const common = require('./common');
+
+test('third 1', () => {
+  common.fnC(1, 4);
+  common.fnD(99);
+});
+
+assert(process.env.NODE_TEST_TMPDIR);
+const tmpFilePath = join(process.env.NODE_TEST_TMPDIR, 'temp-module.js');
+writeFileSync(tmpFilePath, `
+  module.exports = {
+    fn() {
+      return 42;
+    }
+  };
+`);
+const tempModule = require(tmpFilePath);
+assert.strictEqual(tempModule.fn(), 42);
+// Deleted files should not be part of the coverage report.
+unlinkSync(tmpFilePath);