GeezerVison is showing github.com — Print stdout/stderr when pytest fails (in adapter script). (#5512) · mitchell-as/vscode-python@77a510c
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Expand file treeCollapse file tree Open diff view settings Collapse file Copy file name to clipboardExpand all lines: build/unlocalizedFiles.json +1Lines changed: 1 addition & 0 deletions | Original file line number | Diff line number | Diff line change |
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| 19 | 19 | "src/client/terminals/codeExecution/helper.ts", | 20 | 20 | "src/client/testing/common/debugLauncher.ts", | 21 | 21 | "src/client/testing/common/managers/baseTestManager.ts", | | 22 | + "src/client/testing/common/services/discovery.ts", | 22 | 23 | "src/client/testing/configuration.ts", | 23 | 24 | "src/client/testing/display/main.ts", | 24 | 25 | "src/client/testing/main.ts", | |
Collapse file Copy file name to clipboard +1Lines changed: 1 addition & 0 deletions - Display the source diff
- Display the rich diff
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| | 1 | +Always show pytest's output when it fails. |
Collapse file Copy file name to clipboardExpand all lines: pythonFiles/testing_tools/adapter/pytest.py +8-2Lines changed: 8 additions & 2 deletions | Original file line number | Diff line number | Diff line change |
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| 1 | 1 | # Copyright (c) Microsoft Corporation. All rights reserved. | 2 | 2 | # Licensed under the MIT License. | 3 | 3 |
| 4 | | -from __future__ import absolute_import | | 4 | +from __future__ import absolute_import, print_function | 5 | 5 |
| 6 | 6 | import os.path | 7 | 7 | import sys | @@ -33,15 +33,21 @@ def discover(pytestargs=None, hidestdio=False, | 33 | 33 | pytestargs = _adjust_pytest_args(pytestargs) | 34 | 34 | # We use this helper rather than "-pno:terminal" due to possible | 35 | 35 | # platform-dependent issues. | 36 | | - with util.hide_stdio() if hidestdio else util.noop_cm(): | | 36 | + with (util.hide_stdio() if hidestdio else util.noop_cm()) as stdio: | 37 | 37 | ec = _pytest_main(pytestargs, [_plugin]) | 38 | 38 | # See: https://docs.pytest.org/en/latest/usage.html#possible-exit-codes | 39 | 39 | if ec == 5: | 40 | 40 | # No tests were discovered. | 41 | 41 | pass | 42 | 42 | elif ec != 0: | | 43 | + if hidestdio: | | 44 | + print(stdio.getvalue(), file=sys.stderr) | | 45 | + sys.stdout.flush() | 43 | 46 | raise Exception('pytest discovery failed (exit code {})'.format(ec)) | 44 | 47 | if not _plugin._started: | | 48 | + if hidestdio: | | 49 | + print(stdio.getvalue(), file=sys.stderr) | | 50 | + sys.stdout.flush() | 45 | 51 | raise Exception('pytest discovery did not start') | 46 | 52 | return ( | 47 | 53 | _plugin._tests.parents, | |
Collapse file Copy file name to clipboardExpand all lines: pythonFiles/testing_tools/adapter/util.py +8-6Lines changed: 8 additions & 6 deletions | Original file line number | Diff line number | Diff line change |
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@@ -17,17 +17,19 @@ def noop_cm(): | 17 | 17 | @contextlib.contextmanager | 18 | 18 | def hide_stdio(): | 19 | 19 | """Swallow stdout and stderr.""" | 20 | | - ignored = IgnoredIO() | | 20 | + ignored = StdioStream() | 21 | 21 | sys.stdout = ignored | 22 | 22 | sys.stderr = ignored | 23 | 23 | try: | 24 | | - yield | | 24 | + yield ignored | 25 | 25 | finally: | 26 | 26 | sys.stdout = sys.__stdout__ | 27 | 27 | sys.stderr = sys.__stderr__ | 28 | 28 |
| 29 | 29 |
| 30 | | -class IgnoredIO(StringIO): | 31 | | - """A noop "file".""" | 32 | | - def write(self, msg): | 33 | | - pass | | 30 | +if sys.version_info < (3,): | | 31 | + class StdioStream(StringIO): | | 32 | + def write(self, msg): | | 33 | + StringIO.write(self, msg.decode()) | | 34 | +else: | | 35 | + StdioStream = StringIO |
Collapse file Copy file name to clipboardExpand all lines: pythonFiles/tests/testing_tools/adapter/.data/syntax-error/tests/__init__.py Collapse file Copy file name to clipboard +7Lines changed: 7 additions & 0 deletions | Original file line number | Diff line number | Diff line change |
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| | 1 | + | | 2 | +def test_simple(): | | 3 | + assert True | | 4 | + | | 5 | + | | 6 | +# A syntax error: | | 7 | +: |
Collapse file Copy file name to clipboardExpand all lines: pythonFiles/tests/testing_tools/adapter/test_functional.py +28-8Lines changed: 28 additions & 8 deletions | Original file line number | Diff line number | Diff line change |
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@@ -28,18 +28,14 @@ def resolve_testroot(name): | 28 | 28 | def run_adapter(cmd, tool, *cliargs): | 29 | 29 | try: | 30 | 30 | return _run_adapter(cmd, tool, *cliargs) | 31 | | - except subprocess.CalledProcessError: | 32 | | - # Re-run pytest but print out stdout & stderr this time | 33 | | - try: | 34 | | - return _run_adapter(cmd, tool, *cliargs, hidestdio=False) | 35 | | - except subprocess.CalledProcessError as exc: | 36 | | - print(exc.output) | | 31 | + except subprocess.CalledProcessError as exc: | | 32 | + print(exc.output) | 37 | 33 |
| 38 | 34 |
| 39 | 35 | def _run_adapter(cmd, tool, *cliargs, **kwargs): | 40 | 36 | hidestdio = kwargs.pop('hidestdio', True) | 41 | | - assert not kwargs | 42 | | - kwds = {} | | 37 | + assert not kwargs or tuple(kwargs) == ('stderr',) | | 38 | + kwds = kwargs | 43 | 39 | argv = [sys.executable, SCRIPT, cmd, tool, '--'] + list(cliargs) | 44 | 40 | if not hidestdio: | 45 | 41 | argv.insert(4, '--no-hide-stdio') | @@ -235,6 +231,30 @@ def test_discover_not_found(self): | 235 | 231 | # 'tests': [], | 236 | 232 | # }]) | 237 | 233 |
| | 234 | + @unittest.skip('broken in CI') | | 235 | + def test_discover_bad_args(self): | | 236 | + projroot, testroot = resolve_testroot('simple') | | 237 | + | | 238 | + with self.assertRaises(subprocess.CalledProcessError) as cm: | | 239 | + _run_adapter('discover', 'pytest', | | 240 | + '--spam', | | 241 | + '--rootdir', projroot, | | 242 | + testroot, | | 243 | + stderr=subprocess.STDOUT, | | 244 | + ) | | 245 | + self.assertIn('(exit code 4)', cm.exception.output) | | 246 | + | | 247 | + def test_discover_syntax_error(self): | | 248 | + projroot, testroot = resolve_testroot('syntax-error') | | 249 | + | | 250 | + with self.assertRaises(subprocess.CalledProcessError) as cm: | | 251 | + _run_adapter('discover', 'pytest', | | 252 | + '--rootdir', projroot, | | 253 | + testroot, | | 254 | + stderr=subprocess.STDOUT, | | 255 | + ) | | 256 | + self.assertIn('(exit code 2)', cm.exception.output) | | 257 | + | 238 | 258 |
| 239 | 259 | COMPLEX = { | 240 | 260 | 'root': None, | |
Collapse file Copy file name to clipboardExpand all lines: src/client/testing/common/services/discovery.ts +12-4Lines changed: 12 additions & 4 deletions | Original file line number | Diff line number | Diff line change |
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| 3 | 3 |
| 4 | 4 | 'use strict'; | 5 | 5 |
| 6 | | -import { inject, injectable } from 'inversify'; | | 6 | +import { inject, injectable, named } from 'inversify'; | 7 | 7 | import * as path from 'path'; | | 8 | +import { OutputChannel } from 'vscode'; | 8 | 9 | import { traceError } from '../../../common/logger'; | 9 | 10 | import { ExecutionFactoryCreateWithEnvironmentOptions, ExecutionResult, IPythonExecutionFactory, SpawnOptions } from '../../../common/process/types'; | | 11 | +import { IOutputChannel } from '../../../common/types'; | 10 | 12 | import { EXTENSION_ROOT_DIR } from '../../../constants'; | 11 | 13 | import { captureTelemetry } from '../../../telemetry'; | 12 | 14 | import { EventName } from '../../../telemetry/constants'; | | 15 | +import { TEST_OUTPUT_CHANNEL } from '../constants'; | 13 | 16 | import { ITestDiscoveryService, TestDiscoveryOptions, Tests } from '../types'; | 14 | 17 | import { DiscoveredTests, ITestDiscoveredTestParser } from './types'; | 15 | 18 |
| 16 | 19 | const DISCOVERY_FILE = path.join(EXTENSION_ROOT_DIR, 'pythonFiles', 'testing_tools', 'run_adapter.py'); | 17 | 20 |
| 18 | 21 | @injectable() | 19 | 22 | export class TestsDiscoveryService implements ITestDiscoveryService { | 20 | | - constructor(@inject(IPythonExecutionFactory) private readonly execFactory: IPythonExecutionFactory, | 21 | | - @inject(ITestDiscoveredTestParser) private readonly parser: ITestDiscoveredTestParser) { } | | 23 | + constructor( | | 24 | + @inject(IPythonExecutionFactory) private readonly execFactory: IPythonExecutionFactory, | | 25 | + @inject(ITestDiscoveredTestParser) private readonly parser: ITestDiscoveredTestParser, | | 26 | + @inject(IOutputChannel) @named(TEST_OUTPUT_CHANNEL) private readonly outChannel: OutputChannel | | 27 | + ) { } | 22 | 28 | @captureTelemetry(EventName.UNITTEST_DISCOVER_WITH_PYCODE, undefined, true) | 23 | 29 | public async discoverTests(options: TestDiscoveryOptions): Promise<Tests> { | 24 | 30 | let output: ExecutionResult<string> | undefined; | @@ -45,6 +51,8 @@ export class TestsDiscoveryService implements ITestDiscoveryService { | 45 | 51 | cwd: options.cwd, | 46 | 52 | throwOnStdErr: true | 47 | 53 | }; | 48 | | - return execService.exec([DISCOVERY_FILE, ...options.args], spawnOptions); | | 54 | + const argv = [DISCOVERY_FILE, ...options.args]; | | 55 | + this.outChannel.appendLine(`python ${argv.join(' ')}`); | | 56 | + return execService.exec(argv, spawnOptions); | 49 | 57 | } | 50 | 58 | } |
Collapse file Copy file name to clipboardExpand all lines: src/test/testing/common/services/discovery.unit.test.ts +19-2Lines changed: 19 additions & 2 deletions | Original file line number | Diff line number | Diff line change |
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@@ -7,7 +7,7 @@ import * as assert from 'assert'; | 7 | 7 | import * as path from 'path'; | 8 | 8 | import { deepEqual, instance, mock, when } from 'ts-mockito'; | 9 | 9 | import * as typemoq from 'typemoq'; | 10 | | -import { CancellationTokenSource, Uri } from 'vscode'; | | 10 | +import { CancellationTokenSource, OutputChannel, Uri, ViewColumn } from 'vscode'; | 11 | 11 | import { PythonExecutionFactory } from '../../../../client/common/process/pythonExecutionFactory'; | 12 | 12 | import { ExecutionFactoryCreateWithEnvironmentOptions, IPythonExecutionFactory, IPythonExecutionService, SpawnOptions } from '../../../../client/common/process/types'; | 13 | 13 | import { EXTENSION_ROOT_DIR } from '../../../../client/constants'; | @@ -19,13 +19,16 @@ import { MockOutputChannel } from '../../../mockClasses'; | 19 | 19 |
| 20 | 20 | // tslint:disable:no-unnecessary-override no-any | 21 | 21 | suite('Unit Tests - Common Discovery', () => { | | 22 | + let output: OutputChannel; | 22 | 23 | let discovery: TestsDiscoveryService; | 23 | 24 | let executionFactory: IPythonExecutionFactory; | 24 | 25 | let parser: ITestDiscoveredTestParser; | 25 | 26 | setup(() => { | | 27 | + // tslint:disable-next-line:no-use-before-declare | | 28 | + output = mock(StubOutput); | 26 | 29 | executionFactory = mock(PythonExecutionFactory); | 27 | 30 | parser = mock(TestDiscoveredTestParser); | 28 | | - discovery = new TestsDiscoveryService(instance(executionFactory), instance(parser)); | | 31 | + discovery = new TestsDiscoveryService(instance(executionFactory), instance(parser), instance(output)); | 29 | 32 | }); | 30 | 33 | test('Use parser to parse results', async () => { | 31 | 34 | const options: TestDiscoveryOptions = { | @@ -73,3 +76,17 @@ suite('Unit Tests - Common Discovery', () => { | 73 | 76 | assert.deepEqual(result, executionResult); | 74 | 77 | }); | 75 | 78 | }); | | 79 | + | | 80 | +// tslint:disable:no-empty | | 81 | + | | 82 | +//class StubOutput implements OutputChannel { | | 83 | +class StubOutput { | | 84 | + constructor(public name: string) {} | | 85 | + public append(_value: string) {} | | 86 | + public appendLine(_value: string) {} | | 87 | + public clear() {} | | 88 | + //public show(_preserveFocus?: boolean) {} | | 89 | + public show(_column?: ViewColumn | boolean, _preserveFocus?: boolean) {} | | 90 | + public hide() {} | | 91 | + public dispose() {} | | 92 | +} |
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