test: use async/await in test-debugger-preserve-breaks

PR-URL: #44696
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/sequential/test-debugger-preserve-breaks.js

@@ -9,54 +9,39 @@ const startCLI = require('../common/debugger');
 const assert = require('assert');
 const path = require('path');
 
+const scriptFullPath = fixtures.path('debugger', 'three-lines.js');
+const script = path.relative(process.cwd(), scriptFullPath);
+
 // Run after quit.
-{
-  const scriptFullPath = fixtures.path('debugger', 'three-lines.js');
-  const script = path.relative(process.cwd(), scriptFullPath);
+const runTest = async () => {
   const cli = startCLI([script]);
-
-  function onFatal(error) {
-    cli.quit();
-    throw error;
+  try {
+    await cli.waitForInitialBreak();
+    await cli.waitForPrompt();
+    await cli.command('breakpoints');
+    assert.match(cli.output, /No breakpoints yet/);
+    await cli.command('sb(2)');
+    await cli.command('sb(3)');
+    await cli.command('breakpoints');
+    assert.ok(cli.output.includes(`#0 ${script}:2`));
+    assert.ok(cli.output.includes(`#1 ${script}:3`));
+    await cli.stepCommand('c'); // hit line 2
+    await cli.stepCommand('c'); // hit line 3
+    assert.deepStrictEqual(cli.breakInfo, { filename: script, line: 3 });
+    await cli.command('restart');
+    await cli.waitForInitialBreak();
+    assert.deepStrictEqual(cli.breakInfo, { filename: script, line: 1 });
+    await cli.stepCommand('c');
+    assert.deepStrictEqual(cli.breakInfo, { filename: script, line: 2 });
+    await cli.stepCommand('c');
+    assert.deepStrictEqual(cli.breakInfo, { filename: script, line: 3 });
+    await cli.command('breakpoints');
+    const msg = `SCRIPT: ${script}, OUTPUT: ${cli.output}`;
+    assert.ok(cli.output.includes(`#0 ${script}:2`), msg);
+    assert.ok(cli.output.includes(`#1 ${script}:3`), msg);
+  } finally {
+    await cli.quit();
   }
+};
 
-  return cli.waitForInitialBreak()
-    .then(() => cli.waitForPrompt())
-    .then(() => cli.command('breakpoints'))
-    .then(() => {
-      assert.match(cli.output, /No breakpoints yet/);
-    })
-    .then(() => cli.command('sb(2)'))
-    .then(() => cli.command('sb(3)'))
-    .then(() => cli.command('breakpoints'))
-    .then(() => {
-      assert.ok(cli.output.includes(`#0 ${script}:2`));
-      assert.ok(cli.output.includes(`#1 ${script}:3`));
-    })
-    .then(() => cli.stepCommand('c')) // hit line 2
-    .then(() => cli.stepCommand('c')) // hit line 3
-    .then(() => {
-      assert.deepStrictEqual(cli.breakInfo, { filename: script, line: 3 });
-    })
-    .then(() => cli.command('restart'))
-    .then(() => cli.waitForInitialBreak())
-    .then(() => {
-      assert.deepStrictEqual(cli.breakInfo, { filename: script, line: 1 });
-    })
-    .then(() => cli.stepCommand('c'))
-    .then(() => {
-      assert.deepStrictEqual(cli.breakInfo, { filename: script, line: 2 });
-    })
-    .then(() => cli.stepCommand('c'))
-    .then(() => {
-      assert.deepStrictEqual(cli.breakInfo, { filename: script, line: 3 });
-    })
-    .then(() => cli.command('breakpoints'))
-    .then(() => {
-      const msg = `SCRIPT: ${script}, OUTPUT: ${cli.output}`;
-      assert.ok(cli.output.includes(`#0 ${script}:2`), msg);
-      assert.ok(cli.output.includes(`#1 ${script}:3`), msg);
-    })
-    .then(() => cli.quit())
-    .then(null, onFatal);
-}
+runTest();