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‎test/common/index.js‎
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‎test/common/index.js‎
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‎test/fixtures/inspector-instrumentation-breakpoint/dep.js‎
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‎test/fixtures/inspector-instrumentation-breakpoint/dep.js‎
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‎test/fixtures/inspector-instrumentation-breakpoint/main.js‎
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‎test/fixtures/inspector-instrumentation-breakpoint/main.js‎
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‎test/known_issues/test-inspector-instrumentation-breakpoint.js‎
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‎test/known_issues/test-inspector-instrumentation-breakpoint.js‎
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@@ -603,7 +603,8 @@ function printSkipMessage(msg) {
 
 function skip(msg) {
   printSkipMessage(msg);
-  process.exit(0);
+  // In known_issues test, skipping should produce a non-zero exit code.
+  process.exit(require.main?.filename.startsWith(path.resolve(__dirname, '../known_issues/')) ? 1 : 0);
 }
 
 // Returns true if the exit code "exitCode" and/or signal name "signal"
 
@@ -0,0 +1 @@
+console.log('dep loaded');
@@ -0,0 +1 @@
+require('./dep');
@@ -0,0 +1,54 @@
+// This test validates inspector's Debugger.setInstrumentationBreakpoint method.
+// Refs: https://github.com/nodejs/node/issues/31138
+
+'use strict';
+const common = require('../common');
+
+common.skipIfInspectorDisabled();
+
+const assert = require('assert');
+const { resolve: UrlResolve } = require('url');
+const fixtures = require('../common/fixtures');
+const { NodeInstance } = require('../common/inspector-helper.js');
+
+async function testBreakpointBeforeScriptExecution(session) {
+  console.log('[test]',
+              'Verifying debugger stops on start of each script ' +
+    '(Debugger.setInstrumentationBreakpoint with beforeScriptExecution)');
+  const commands = [
+    { 'method': 'Runtime.enable' },
+    { 'method': 'Debugger.enable' },
+    { 'method': 'Debugger.setInstrumentationBreakpoint',
+      'params': { 'instrumentation': 'beforeScriptExecution' } },
+    { 'method': 'Runtime.runIfWaitingForDebugger' },
+  ];
+
+  await session.send(commands);
+
+  // Break on start
+  await session.waitForBreakOnLine(
+    0, UrlResolve(session.scriptURL().toString(), 'main.js'));
+  await session.send([{ 'method': 'Debugger.resume' }]);
+
+  // Script loaded
+  await session.waitForBreakOnLine(
+    0, UrlResolve(session.scriptURL().toString(), 'main.js'));
+  await session.send([{ 'method': 'Debugger.resume' }]);
+
+  // Script loaded
+  await session.waitForBreakOnLine(
+    0, UrlResolve(session.scriptURL().toString(), 'dep.js'));
+  await session.send([{ 'method': 'Debugger.resume' }]);
+}
+
+async function runTest() {
+  const main = fixtures.path('inspector-instrumentation-breakpoint', 'main.js');
+  const child = new NodeInstance(['--inspect-brk=0'], '', main);
+
+  const session = await child.connectInspectorSession();
+  await testBreakpointBeforeScriptExecution(session);
+  await session.runToCompletion();
+  assert.strictEqual((await child.expectShutdown()).exitCode, 0);
+}
+
+runTest();
Original file line number	Diff line number	Diff line change
`@@ -603,7 +603,8 @@ function printSkipMessage(msg) {`
`603`	`603`
`604`	`604`	`function skip(msg) {`
`605`	`605`	`printSkipMessage(msg);`
`606`		`- process.exit(0);`
	`606`	`+ // In known_issues test, skipping should produce a non-zero exit code.`
	`607`	`+ process.exit(require.main?.filename.startsWith(path.resolve(__dirname, '../known_issues/')) ? 1 : 0);`
`607`	`608`	`}`
`608`	`609`
`609`	`610`	`// Returns true if the exit code "exitCode" and/or signal name "signal"`