test(cli): snapshot the cdk synth output contract

packages/aws-cdk/test/_helpers/io-recorder.ts

@@ -38,6 +38,13 @@ function defaultScrubbers(): Scrubber[] {
     { pattern: /\n\s+at\s+[^\n]*/g, replacement: '' },
     // The OS temp dir (tests chdir into a temp dir)
     { pattern: new RegExp(escapeRegExp(fs.realpathSync(os.tmpdir())), 'g'), replacement: '<TMP>' },
+    // The random suffix of mkdtemp-created assembly output dirs, e.g.
+    // "/cdk.outAb12Cd". Anchored on the path separator (either flavor, and
+    // normalized to '/' so snapshots match cross-platform) so prose that
+    // merely starts with "cdk.out" is never mangled; mkdtemp dirs always sit
+    // directly under the temp dir, so the separator is always present (and
+    // the TMP scrubber above has already run — scrubbers apply in array order).
+    { pattern: /[\\/]cdk\.out[a-zA-Z0-9]{6}/g, replacement: '/cdk.out<RANDOM>' },
   ];
 }
 

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_--ignore-errors_tolerates_error_annotations_on_a_selected_stack.ndjson

@@ -0,0 +1,4 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"error","code":"CDK_TOOLKIT_E9600","message":"ERROR this is an error (Construct Annotations)\n   resource\n   Rule Construct-Annotations::error-annotation"}
+{"seq":3,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_--strict_fails_synthesis_on_warning_annotations.ndjson

@@ -0,0 +1,3 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"error","code":"CDK_TOOLKIT_E9600","message":"WARNING this is a warning (Construct Annotations)\n   resource\n   Acknowledge with 'Construct-Annotations::warning-annotation'"}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_CI_mode_single_stack_skips_the_flags_warning_to_keep_stdout_valid_YAML.ndjson

@@ -0,0 +1,3 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"result","code":null,"message":"Resources:\n  TemplateName: Test-Stack-A\n"}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_CI_mode_single_stack_with_--quiet_allows_the_flags_warning.ndjson

@@ -0,0 +1,3 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_a_stage-only_app_selects_no_stacks_and_still_succeeds.ndjson

@@ -0,0 +1,5 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"info","code":null,"message":"Successfully synthesized to <TMP>/cdk.out<RANDOM>"}
+{"seq":3,"type":"notify","action":"synth","level":"info","code":null,"message":"Supply a stack id () to display its template."}
+{"seq":4,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_a_validateOnSynth_stack_with_errors_fails_synth_when_validation_is_on.ndjson

@@ -0,0 +1,3 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"error","code":"CDK_TOOLKIT_E9600","message":"ERROR this is an error (Construct Annotations)\n   resource\n   Rule Construct-Annotations::error-annotation"}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_a_validateOnSynth_stack_with_errors_is_tolerated_with_--no-validation.ndjson

@@ -0,0 +1,5 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"info","code":null,"message":"Successfully synthesized to <TMP>/cdk.out<RANDOM>"}
+{"seq":3,"type":"notify","action":"synth","level":"info","code":null,"message":"Supply a stack id (Test-Stack-A-Display-Name, Test-Stack-B) to display its template."}
+{"seq":4,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_an_unmatched_pattern_fails_with_the_historical_error_message.ndjson

@@ -0,0 +1,2 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_explicitly_selected_stack_with_error_annotations_fails_synthesis.ndjson

@@ -0,0 +1,3 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"error","code":"CDK_TOOLKIT_E9600","message":"ERROR this is an error (Construct Annotations)\n   resource\n   Rule Construct-Annotations::error-annotation"}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_multiple_stacks_print_the_success_and_supply-a-stack-id_lines.ndjson

@@ -0,0 +1,5 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"info","code":null,"message":"Successfully synthesized to <TMP>/cdk.out<RANDOM>"}
+{"seq":3,"type":"notify","action":"synth","level":"info","code":null,"message":"Supply a stack id (Test-Stack-A-Display-Name, Test-Stack-B) to display its template."}
+{"seq":4,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_nested-assembly_stacks_are_addressed_by_hierarchical_id_in_the_supply_line.ndjson

@@ -0,0 +1,5 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"info","code":null,"message":"Successfully synthesized to <TMP>/cdk.out<RANDOM>"}
+{"seq":3,"type":"notify","action":"synth","level":"info","code":null,"message":"Supply a stack id (Test-Stack-A-Display-Name, Test-Stack-A/nested) to display its template."}
+{"seq":4,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_non-exclusive_selection_expands_to_upstream_dependencies.ndjson

@@ -0,0 +1,6 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"info","code":"CDK_TOOLKIT_I1002","message":"Including dependency stacks: Test-Stack-B"}
+{"seq":3,"type":"notify","action":"synth","level":"info","code":null,"message":"Successfully synthesized to <TMP>/cdk.out<RANDOM>"}
+{"seq":4,"type":"notify","action":"synth","level":"info","code":null,"message":"Supply a stack id (Test-Stack-B, Test-Stack-D) to display its template."}
+{"seq":5,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_single_stack_prints_the_obscured_YAML_template_and_the_flags_warning.ndjson

@@ -0,0 +1,4 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"result","code":null,"message":"Resources:\n  TemplateName: Test-Stack-A\n"}
+{"seq":3,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_single_stack_with_--json_prints_the_JSON_template.ndjson

@@ -0,0 +1,4 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"result","code":null,"message":"{\n  \"Resources\": {\n    \"TemplateName\": \"Test-Stack-A\"\n  }\n}"}
+{"seq":3,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_single_stack_with_--quiet_prints_no_template_but_keeps_the_flags_warning.ndjson

@@ -0,0 +1,3 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/__io_snapshots__/synth/cdk_synth_stack_ids_containing_glob_metacharacters_are_handed_to_toolkit-lib_literally.ndjson

@@ -0,0 +1,4 @@
+{"seq":0,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1000","message":"Starting Synthesis ..."}
+{"seq":1,"type":"notify","action":"synth","level":"trace","code":"CDK_CLI_I1001","message":"\n✨  Synthesis time: <DURATION>\n"}
+{"seq":2,"type":"notify","action":"synth","level":"result","code":null,"message":"Resources:\n  TemplateName: Data[prod]\n"}
+{"seq":3,"type":"notify","action":"synth","level":"warn","code":null,"message":"1 feature flags are not configured. Run 'cdk flags --unstable=flags' to learn more."}

packages/aws-cdk/test/commands/synth.test.ts

@@ -0,0 +1,249 @@
+import * as cxschema from '@aws-cdk/cloud-assembly-schema';
+import type { FeatureFlag } from '@aws-cdk/toolkit-lib';
+import { Toolkit } from '@aws-cdk/toolkit-lib';
+import { Deployments } from '../../lib/api/deployments';
+import { CdkToolkit } from '../../lib/cli/cdk-toolkit';
+import { CliIoHost } from '../../lib/cli/io-host';
+import { instanceMockFrom, MockCloudExecutable } from '../_helpers';
+import type { TestAssembly } from '../_helpers';
+import { IoHostRecorder } from '../_helpers/io-recorder';
+
+// `cdk synth` prints the template of a single selected stack to stdout (or a
+// success message for several stacks) and appends a feature-flags warning with
+// CI/quiet-dependent gating. Its stdout is a scripting surface (must stay valid
+// YAML in CI mode), so these tests run `CdkToolkit.synth` and snapshot
+// everything the user sees (via IoHostRecorder) — the committed NDJSON is the
+// assertion for selection, template rendering, message levels and gating.
+//
+// Coverage notes: the cli.ts argument mapping (settings-file `quiet` override,
+// the `--exclusively` branch) sits above the entry point used here and is NOT
+// pinned by these snapshots. Several scenarios are also asserted, spy-style, in
+// test/cli/cdk-toolkit.test.ts describe('synth') — these snapshots are the
+// authoritative record of the user-visible output.
+describe('cdk synth', () => {
+  const ioHost = CliIoHost.instance();
+  let recorder: IoHostRecorder;
+
+  // A flag that `FlagOperations.filterNeedsAttention` keeps (unconfigured, not
+  // obsolete, unconfigured behavior differs from the recommended value), so
+  // `displayFlagsMessage` deterministically emits its warning when not gated.
+  const UNCONFIGURED_FLAG: FeatureFlag = {
+    module: 'aws-cdk-lib',
+    name: '@aws-cdk/testing:synthSnapshotFlag',
+    recommendedValue: true,
+    unconfiguredBehavesLike: { v2: false },
+  };
+
+  beforeEach(() => {
+    jest.resetAllMocks();
+    ioHost.isCI = false;
+    ioHost.currentAction = 'synth';
+    jest.spyOn(Toolkit.prototype, 'flags').mockResolvedValue([UNCONFIGURED_FLAG]);
+    // The recorder observes the host (it does not spy on `notify`), so the real
+    // notify path — and any output listeners — run without any pass-through.
+    recorder = IoHostRecorder.create(ioHost);
+  });
+
+  afterEach(() => {
+    recorder.matchSnapshot();
+  });
+
+  async function synth(
+    assembly: TestAssembly,
+    stackNames: string[],
+    options: {
+      exclusively?: boolean;
+      quiet?: boolean;
+      autoValidate?: boolean;
+      json?: boolean;
+      strict?: boolean;
+      ignoreErrors?: boolean;
+    } = {},
+  ) {
+    const cloudExecutable = await MockCloudExecutable.create(assembly, undefined, ioHost, 'synth');
+    const toolkit = new CdkToolkit({
+      ioHost,
+      cloudExecutable,
+      configuration: cloudExecutable.configuration,
+      sdkProvider: cloudExecutable.sdkProvider,
+      deployments: instanceMockFrom(Deployments),
+      strict: options.strict,
+      ignoreErrors: options.ignoreErrors,
+    });
+    await toolkit.synth(
+      stackNames,
+      options.exclusively ?? true,
+      options.quiet ?? false,
+      options.autoValidate,
+      options.json,
+    );
+  }
+
+  const STACK_A = {
+    stackName: 'Test-Stack-A',
+    displayName: 'Test-Stack-A-Display-Name',
+    // Rules.CheckBootstrapVersion must be obscured from the printed template
+    template: {
+      Resources: { TemplateName: 'Test-Stack-A' },
+      Rules: { CheckBootstrapVersion: { Assertions: [] } },
+    },
+    env: 'aws://123456789012/bermuda-triangle-1',
+  };
+
+  const STACK_B = {
+    stackName: 'Test-Stack-B',
+    template: { Resources: { TemplateName: 'Test-Stack-B' } },
+    env: 'aws://123456789012/bermuda-triangle-1',
+  };
+
+  const STACK_WITH_ERROR = {
+    stackName: 'witherrors',
+    displayName: 'Test-Stack-A/witherrors',
+    env: 'aws://123456789012/bermuda-triangle-1',
+    template: { resource: 'errorresource' },
+    metadata: {
+      '/resource': [
+        {
+          type: cxschema.ArtifactMetadataEntryType.ERROR,
+          data: 'this is an error',
+        },
+      ],
+    },
+  };
+
+  test('single stack prints the obscured YAML template and the flags warning', async () => {
+    await synth({ stacks: [STACK_A] }, ['Test-Stack-A-Display-Name']);
+  });
+
+  test('single stack with --json prints the JSON template', async () => {
+    await synth({ stacks: [STACK_A] }, ['Test-Stack-A-Display-Name'], { json: true });
+  });
+
+  test('single stack with --quiet prints no template but keeps the flags warning', async () => {
+    await synth({ stacks: [STACK_A] }, ['Test-Stack-A-Display-Name'], { quiet: true });
+  });
+
+  test('multiple stacks print the success and supply-a-stack-id lines', async () => {
+    await synth({ stacks: [STACK_A, STACK_B] }, []);
+  });
+
+  test('nested-assembly stacks are addressed by hierarchical id in the supply line', async () => {
+    // Select the nested stack explicitly (the no-pattern default only selects
+    // top-level stacks), so the snapshot pins the hierarchical-id handoff.
+    await synth({
+      stacks: [STACK_A, STACK_B],
+      nestedAssemblies: [{
+        stacks: [{
+          stackName: 'nested',
+          displayName: 'Test-Stack-A/nested',
+          template: { Resources: { TemplateName: 'nested' } },
+          env: 'aws://123456789012/bermuda-triangle-1',
+        }],
+      }],
+    }, ['Test-Stack-A-Display-Name', 'Test-Stack-A/nested']);
+  });
+
+  test('stack ids containing glob metacharacters are handed to toolkit-lib literally', async () => {
+    // 'Data[prod]' glob-matches 'Datap' when re-interpreted as a pattern, so an
+    // unescaped id handoff would select both stacks and print the supply line
+    // instead of the template. The snapshot must show Data[prod]'s template.
+    await synth({
+      stacks: [
+        {
+          stackName: 'DataProd',
+          displayName: 'Data[prod]',
+          template: { Resources: { TemplateName: 'Data[prod]' } },
+          env: 'aws://123456789012/bermuda-triangle-1',
+        },
+        {
+          stackName: 'Datap',
+          template: { Resources: { TemplateName: 'Datap' } },
+          env: 'aws://123456789012/bermuda-triangle-1',
+        },
+      ],
+    }, ['Data\\[prod\\]']);
+  });
+
+  test('CI mode single stack skips the flags warning to keep stdout valid YAML', async () => {
+    ioHost.isCI = true;
+    await synth({ stacks: [STACK_A] }, ['Test-Stack-A-Display-Name']);
+  });
+
+  test('CI mode single stack with --quiet allows the flags warning', async () => {
+    ioHost.isCI = true;
+    await synth({ stacks: [STACK_A] }, ['Test-Stack-A-Display-Name'], { quiet: true });
+  });
+
+  test('explicitly selected stack with error annotations fails synthesis', async () => {
+    await expect(synth({
+      stacks: [STACK_A, STACK_B],
+      nestedAssemblies: [{ stacks: [STACK_WITH_ERROR] }],
+    }, ['Test-Stack-A/witherrors'], { quiet: true })).rejects.toThrow(/Synthesis finished with errors/);
+  });
+
+  test('a validateOnSynth stack with errors fails synth when validation is on', async () => {
+    await expect(synth({
+      stacks: [STACK_A, STACK_B],
+      nestedAssemblies: [{ stacks: [{ ...STACK_WITH_ERROR, properties: { validateOnSynth: true } }] }],
+    }, [], { quiet: true, autoValidate: true })).rejects.toThrow(/Synthesis finished with errors/);
+  });
+
+  test('a validateOnSynth stack with errors is tolerated with --no-validation', async () => {
+    await synth({
+      stacks: [STACK_A, STACK_B],
+      nestedAssemblies: [{ stacks: [{ ...STACK_WITH_ERROR, properties: { validateOnSynth: true } }] }],
+    }, [], { quiet: true, autoValidate: false });
+  });
+
+  test('an unmatched pattern fails with the historical error message', async () => {
+    await expect(synth({ stacks: [STACK_A] }, ['NoSuchStack']))
+      .rejects.toThrow(/No stacks match the name\(s\) NoSuchStack/);
+  });
+
+  test('a stage-only app selects no stacks and still succeeds', async () => {
+    // Pipeline-style apps have no top-level stacks; the no-pattern MainAssembly
+    // default selects nothing and synth must not fail.
+    //
+    // The snapshot deliberately pins the current output as-is, including the
+    // awkward empty-parens "Supply a stack id ()" line — this is a baseline,
+    // not an endorsement; fixing that wording should show up as a snapshot diff.
+    await synth({
+      stacks: [],
+      nestedAssemblies: [{ stacks: [{ ...STACK_B, stackName: 'staged', displayName: 'MyStage/staged' }] }],
+    }, []);
+  });
+
+  test('non-exclusive selection expands to upstream dependencies', async () => {
+    // Selecting the dependent stack without --exclusively pulls in its
+    // dependency, taking the multi-stack path.
+    await synth({
+      stacks: [
+        STACK_B,
+        {
+          stackName: 'Test-Stack-D',
+          template: { Resources: { TemplateName: 'Test-Stack-D' } },
+          env: 'aws://123456789012/bermuda-triangle-1',
+          depends: ['Test-Stack-B'],
+        },
+      ],
+    }, ['Test-Stack-D'], { exclusively: false });
+  });
+
+  test('--strict fails synthesis on warning annotations', async () => {
+    await expect(synth({
+      stacks: [{
+        ...STACK_B,
+        metadata: {
+          '/resource': [{ type: cxschema.ArtifactMetadataEntryType.WARN, data: 'this is a warning' }],
+        },
+      }],
+    }, ['Test-Stack-B'], { quiet: true, strict: true })).rejects.toThrow(/Synthesis finished with warnings/);
+  });
+
+  test('--ignore-errors tolerates error annotations on a selected stack', async () => {
+    await synth({
+      stacks: [STACK_A, STACK_B],
+      nestedAssemblies: [{ stacks: [STACK_WITH_ERROR] }],
+    }, ['Test-Stack-A/witherrors'], { quiet: true, ignoreErrors: true });
+  });
+});