diff --git a/test/parallel/test-snapshot-api.js b/test/parallel/test-snapshot-api.js
index 38b17add3db9c1..1068ae3b4c7b46 100644
--- a/test/parallel/test-snapshot-api.js
+++ b/test/parallel/test-snapshot-api.js
@@ -7,6 +7,7 @@ const assert = require('assert');
 const { spawnSync } = require('child_process');
 const tmpdir = require('../common/tmpdir');
 const fixtures = require('../common/fixtures');
+const { expectSyncExitWithoutError } = require('../common/child_process');
 const fs = require('fs');
 
 const v8 = require('v8');
@@ -36,11 +37,8 @@ const entry = fixtures.path('snapshot', 'v8-startup-snapshot-api.js');
   ], {
     cwd: tmpdir.path
   });
-  if (child.status !== 0) {
-    console.log(child.stderr.toString());
-    console.log(child.stdout.toString());
-    assert.strictEqual(child.status, 0);
-  }
+
+  expectSyncExitWithoutError(child);
   const stats = fs.statSync(tmpdir.resolve('snapshot.blob'));
   assert(stats.isFile());
 }
@@ -58,9 +56,9 @@ const entry = fixtures.path('snapshot', 'v8-startup-snapshot-api.js');
     }
   });
 
-  const stdout = child.stdout.toString().trim();
-  const stderr = child.stderr.toString().trim();
-  assert.strictEqual(stderr, 'Reading book1.en_US.txt');
-  assert.strictEqual(stdout, 'This is book1.en_US.txt');
-  assert.strictEqual(child.status, 0);
+  expectSyncExitWithoutError(child, {
+    stderr: 'Reading book1.en_US.txt',
+    stdout: 'This is book1.en_US.txt',
+    trim: true
+  });
 }
diff --git a/test/parallel/test-snapshot-basic.js b/test/parallel/test-snapshot-basic.js
index 6f1d3c21ae1772..cd87caa3fcbce3 100644
--- a/test/parallel/test-snapshot-basic.js
+++ b/test/parallel/test-snapshot-basic.js
@@ -8,6 +8,7 @@ const assert = require('assert');
 const { spawnSync } = require('child_process');
 const tmpdir = require('../common/tmpdir');
 const fixtures = require('../common/fixtures');
+const { expectSyncExitWithoutError, expectSyncExit } = require('../common/child_process');
 const fs = require('fs');
 
 tmpdir.refresh();
@@ -15,7 +16,7 @@ tmpdir.refresh();
 let snapshotScript = 'node:embedded_snapshot_main';
 if (!process.config.variables.node_use_node_snapshot) {
   // Check that Node.js built without an embedded snapshot
-  // exits with 1 when node:embedded_snapshot_main is specified
+  // exits with 9 when node:embedded_snapshot_main is specified
   // as snapshot entry point.
   const child = spawnSync(process.execPath, [
     '--build-snapshot',
@@ -24,10 +25,11 @@ if (!process.config.variables.node_use_node_snapshot) {
     cwd: tmpdir.path
   });
 
-  assert.match(
-    child.stderr.toString(),
-    /Node\.js was built without embedded snapshot/);
-  assert.strictEqual(child.status, 9);
+  expectSyncExit(child, {
+    status: 9,
+    signal: null,
+    stderr: /Node\.js was built without embedded snapshot/
+  });
 
   snapshotScript = fixtures.path('empty.js');
 }
@@ -41,12 +43,7 @@ if (!process.config.variables.node_use_node_snapshot) {
   ], {
     cwd: tmpdir.path
   });
-  if (child.status !== 0) {
-    console.log(child.stderr.toString());
-    console.log(child.stdout.toString());
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
+  expectSyncExitWithoutError(child);
   const stats = fs.statSync(tmpdir.resolve('snapshot.blob'));
   assert(stats.isFile());
 }
@@ -63,12 +60,7 @@ const blobPath = tmpdir.resolve('my-snapshot.blob');
   ], {
     cwd: tmpdir.path
   });
-  if (child.status !== 0) {
-    console.log(child.stderr.toString());
-    console.log(child.stdout.toString());
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
+  expectSyncExitWithoutError(child);
   const stats = fs.statSync(blobPath);
   assert(stats.isFile());
 }
@@ -82,13 +74,7 @@ const blobPath = tmpdir.resolve('my-snapshot.blob');
   ], {
     cwd: tmpdir.path
   });
-
-  if (child.status !== 0) {
-    console.log(child.stderr.toString());
-    console.log(child.stdout.toString());
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
+  expectSyncExitWithoutError(child);
 
   assert(child.stdout.toString().includes('--help'));
 }
@@ -105,7 +91,9 @@ const blobPath = tmpdir.resolve('my-snapshot.blob');
   });
 
   // Check that it is a noop.
-  assert.strictEqual(child.stdout.toString().trim(), '');
-  assert.strictEqual(child.stderr.toString().trim(), '');
-  assert.strictEqual(child.status, 0);
+  expectSyncExitWithoutError(child, {
+    stderr: '',
+    stdout: '',
+    trim: true
+  });
 }
diff --git a/test/parallel/test-snapshot-warning.js b/test/parallel/test-snapshot-warning.js
index 2ca87f1ef5f055..444f65af0b8b35 100644
--- a/test/parallel/test-snapshot-warning.js
+++ b/test/parallel/test-snapshot-warning.js
@@ -10,6 +10,7 @@ const assert = require('assert');
 const { spawnSync } = require('child_process');
 const tmpdir = require('../common/tmpdir');
 const fixtures = require('../common/fixtures');
+const { expectSyncExitWithoutError } = require('../common/child_process');
 const fs = require('fs');
 
 const warningScript = fixtures.path('snapshot', 'warning.js');
@@ -27,12 +28,7 @@ tmpdir.refresh();
   ], {
     cwd: tmpdir.path
   });
-  console.log('[stderr]:', child.stderr.toString());
-  console.log('[stdout]:', child.stdout.toString());
-  if (child.status !== 0) {
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
+  expectSyncExitWithoutError(child);
   const stats = fs.statSync(blobPath);
   assert(stats.isFile());
 
@@ -43,14 +39,14 @@ tmpdir.refresh();
   ], {
     cwd: tmpdir.path
   });
-  console.log('[stderr]:', child.stderr.toString());
-  console.log('[stdout]:', child.stdout.toString());
-  if (child.status !== 0) {
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
-  const match = child.stderr.toString().match(/Warning: test warning/g);
-  assert.strictEqual(match.length, 1);
+  expectSyncExitWithoutError(child, {
+    stderr(output) {
+      const match = output.match(/Warning: test warning/g);
+      assert.strictEqual(match.length, 1);
+      return true;
+    }
+  });
+
 }
 
 tmpdir.refresh();
@@ -65,18 +61,17 @@ tmpdir.refresh();
   ], {
     cwd: tmpdir.path
   });
-  console.log('[stderr]:', child.stderr.toString());
-  console.log('[stdout]:', child.stdout.toString());
-  if (child.status !== 0) {
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
+  expectSyncExitWithoutError(child, {
+    stderr(output) {
+      let match = output.match(/Warning: test warning/g);
+      assert.strictEqual(match.length, 1);
+      match = output.match(/Use `node --trace-warnings/g);
+      assert.strictEqual(match.length, 1);
+      return true;
+    }
+  });
   const stats = fs.statSync(blobPath);
   assert(stats.isFile());
-  let match = child.stderr.toString().match(/Warning: test warning/g);
-  assert.strictEqual(match.length, 1);
-  match = child.stderr.toString().match(/Use `node --trace-warnings/g);
-  assert.strictEqual(match.length, 1);
 
   child = spawnSync(process.execPath, [
     '--snapshot-blob',
@@ -85,17 +80,17 @@ tmpdir.refresh();
   ], {
     cwd: tmpdir.path
   });
-  console.log('[stderr]:', child.stderr.toString());
-  console.log('[stdout]:', child.stdout.toString());
-  if (child.status !== 0) {
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
-  // Warnings should not be handled more than once.
-  match = child.stderr.toString().match(/Warning: test warning/g);
-  assert.strictEqual(match.length, 1);
-  match = child.stderr.toString().match(/Use `node --trace-warnings/g);
-  assert.strictEqual(match.length, 1);
+
+  expectSyncExitWithoutError(child, {
+    stderr(output) {
+      // Warnings should not be handled more than once.
+      let match = output.match(/Warning: test warning/g);
+      assert.strictEqual(match.length, 1);
+      match = output.match(/Use `node --trace-warnings/g);
+      assert.strictEqual(match.length, 1);
+      return true;
+    }
+  });
 }
 
 tmpdir.refresh();
@@ -114,25 +109,26 @@ tmpdir.refresh();
   ], {
     cwd: tmpdir.path
   });
-  console.log('[stderr]:', child.stderr.toString());
-  console.log('[stdout]:', child.stdout.toString());
-  if (child.status !== 0) {
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
+
+  expectSyncExitWithoutError(child, {
+    stderr(output) {
+      assert.doesNotMatch(output, /Warning: test warning/);
+    }
+  });
+
   const stats = fs.statSync(blobPath);
   assert(stats.isFile());
+
   const warnings1 = fs.readFileSync(warningFile1, 'utf8');
   console.log(warningFile1, ':', warnings1);
   let match = warnings1.match(/Warning: test warning/g);
   assert.strictEqual(match.length, 1);
   match = warnings1.match(/Use `node --trace-warnings/g);
   assert.strictEqual(match.length, 1);
-  assert.doesNotMatch(child.stderr.toString(), /Warning: test warning/);
-
   fs.rmSync(warningFile1, {
     maxRetries: 3, recursive: false, force: true
   });
+
   child = spawnSync(process.execPath, [
     '--snapshot-blob',
     blobPath,
@@ -142,12 +138,13 @@ tmpdir.refresh();
   ], {
     cwd: tmpdir.path
   });
-  console.log('[stderr]:', child.stderr.toString());
-  console.log('[stdout]:', child.stdout.toString());
-  if (child.status !== 0) {
-    console.log(child.signal);
-    assert.strictEqual(child.status, 0);
-  }
+
+  expectSyncExitWithoutError(child, {
+    stderr(output) {
+      assert.doesNotMatch(output, /Warning: test warning/);
+      return true;
+    }
+  });
   assert(!fs.existsSync(warningFile1));
 
   const warnings2 = fs.readFileSync(warningFile2, 'utf8');
@@ -156,5 +153,4 @@ tmpdir.refresh();
   assert.strictEqual(match.length, 1);
   match = warnings2.match(/Use `node --trace-warnings/g);
   assert.strictEqual(match.length, 1);
-  assert.doesNotMatch(child.stderr.toString(), /Warning: test warning/);
 }