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Closed
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Allow coverage to be run on localhost #95

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5101335
coverage for browser based unit / integration tests to be run on loca…
jayudey-wf Nov 13, 2015
e814d3e
remove custom test
jayudey-wf Nov 13, 2015
06a649c
adding logging
jayudey-wf Nov 13, 2015
611cfca
removing kill
jayudey-wf Nov 13, 2015
89d5c1c
no message
jayudey-wf Nov 13, 2015
3950fd1
extending test time
jayudey-wf Nov 13, 2015
5e0a990
additional logging
jayudey-wf Nov 16, 2015
433163e
error catch
jayudey-wf Nov 16, 2015
0851d56
yet more logging
jayudey-wf Nov 16, 2015
77cba36
hanging travis
jayudey-wf Nov 16, 2015
1c9d1ce
add a hard wait
jayudey-wf Nov 16, 2015
bad8b5f
listening for errors
jayudey-wf Nov 16, 2015
1bfe9c3
even more logging
jayudey-wf Nov 16, 2015
fe213a9
making things async
jayudey-wf Nov 16, 2015
44d9b9d
null test process
jayudey-wf Nov 16, 2015
c009d2b
more logging still
jayudey-wf Nov 16, 2015
b135044
logging
jayudey-wf Nov 17, 2015
1dd81aa
moving serve
jayudey-wf Nov 17, 2015
344290b
waiting for content
jayudey-wf Nov 17, 2015
2c81595
file exists
jayudey-wf Nov 17, 2015
8ddba30
waiting for the write
jayudey-wf Nov 17, 2015
fab6dbf
typo
jayudey-wf Nov 17, 2015
4087aad
specify host
jayudey-wf Nov 17, 2015
ffd6dc0
Output pub serve logs
Nov 18, 2015
16d5309
Use 127.0.0.1. Print stack trace on failure
Nov 18, 2015
ea44eab
127.0.0.1
Nov 18, 2015
7bafbf2
Catch collection failures
Nov 18, 2015
35acbee
log all of pub serve output
Nov 18, 2015
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94 changes: 83 additions & 11 deletions lib/src/tasks/coverage/api.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -128,12 +128,17 @@ class CoverageTask extends Task {
/// the coverage collection has completed.
TaskProcess _lastTestProcess;

String _openPortForTest;

/// Directory to output all coverage related artifacts.
Directory _outputDirectory;

/// List of directories on which coverage should be reported.
List<String> _reportOn;

/// Process used to serve Test directory for browser based tests
TaskProcess _testServe;

CoverageTask._(List<String> tests, List<String> reportOn,
{bool html: defaultHtml, String output: defaultOutput})
: _html = html,
Expand Down Expand Up @@ -217,6 +222,7 @@ class CoverageTask extends Task {
'run',
'coverage:collect_coverage',
'--port=${observatoryPort}',
'--host=127.0.0.1',
'-o',
collection.path
];
Expand All @@ -229,13 +235,17 @@ class CoverageTask extends Task {
process.stdout.listen((l) => _coverageOutput.add(' $l'));
process.stderr.listen((l) => _coverageErrorOutput.add(' $l'));
await process.done;

_killTest();
if (await process.exitCode > 0) continue;
collections.add(collection);
}

print('PUB SERVE KILLED');
_testServe.kill();

// Merge all individual coverage collection files into one.
_collection = _merge(collections);
_collection = await _merge(collections);
}

Future _format() async {
Expand Down Expand Up @@ -297,24 +307,59 @@ class CoverageTask extends Task {
}
}

File _merge(List<File> collections) {
if (collections.isEmpty) throw new ArgumentError(
'Cannot merge an empty list of coverages.');

Map mergedJson = JSON.decode(collections.first.readAsStringSync());
for (int i = 1; i < collections.length; i++) {
Map coverageJson = JSON.decode(collections[i].readAsStringSync());
mergedJson['coverage'].addAll(coverageJson['coverage']);
Future<File> _merge(List<File> collections) async {
Map mergedJson = {'coverage': []};
for (var collection in collections) {
String contents = collection.readAsStringSync();
if (contents.isEmpty) {
_coverageErrorOutput.add('Failed to collect coverage (${collection.path})');
} else {
Map coverageJson;
try {
coverageJson = JSON.decode(contents);
mergedJson['coverage'].addAll(coverageJson['coverage']);
} on FormatException {
_coverageErrorOutput.add('Failed to parse coverage (${collection.path})');
}
}
}
_collections.deleteSync(recursive: true);

File coverage = new File(path.join(_outputDirectory.path, 'coverage.json'));
if (coverage.existsSync()) {
coverage.deleteSync();
}
coverage.createSync();
coverage.writeAsStringSync(JSON.encode(mergedJson));
return coverage;

// Map mergedJson = {};
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@trentgrover-wf trentgrover-wf Nov 19, 2015

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why all the commented out code?

// try {
// bool existsFirst = collections.first.existsSync();
// _coverageOutput.add('first file ' + existsFirst.toString());
// bool existsSecond = collections[1].existsSync();
// _coverageOutput.add('second file ' + existsSecond.toString());
// if (collections.isEmpty) throw new ArgumentError(
// 'Cannot merge an empty list of coverages.');
//
// mergedJson = JSON.decode(collections.first.readAsStringSync());
// for (int i = 1; i < collections.length; i++) {
// Map coverageJson = JSON.decode(collections[i].readAsStringSync());
// mergedJson['coverage'].addAll(coverageJson['coverage']);
// }
// _collections.deleteSync(recursive: true);
//
// File coverage =
// new File(path.join(_outputDirectory.path, 'coverage.json'));
// if (coverage.existsSync()) {
// coverage.deleteSync();
// }
// coverage.createSync();
// coverage.writeAsStringSync(JSON.encode(mergedJson));
// return coverage;
// } catch (e, stackTrace) {
// print('COVERAGE MERGE FAILED: $e\n$stackTrace');
// print('MERGED JSON: $mergedJson');
// }
}

Future _run() async {
Expand All @@ -323,6 +368,22 @@ class CoverageTask extends Task {
return;
}

_openPortForTest = await getOpenPort().then((value) {
return value.toString();
});

_testServe =
new TaskProcess('pub', ['serve', 'test', '--port', _openPortForTest]);

Completer pubServeReady = new Completer();
_testServe.stdout.listen((line) {
_coverageOutput.add('PUB SERVE: $line');
if (line.contains('Serving')) {
pubServeReady.complete();
}
});

await pubServeReady.future;
await _collect();
await _format();

Expand Down Expand Up @@ -408,7 +469,18 @@ class CoverageTask extends Task {
if (isBrowserTest) {
// Run the test in content-shell.
String executable = 'content_shell';
List args = [htmlFile.path];
List<String> args = [];
if (customHtmlFile.existsSync()) {
args = [
'http://127.0.0.1:$_openPortForTest/' +
htmlFile.path.split('/test/').last
];
} else {
args = [
'http://127.0.0.1:$_openPortForTest/' +
htmlFile.path.replaceFirst('test/', '')
];
}
_coverageOutput.add('');
_coverageOutput.add('Running test suite ${file.path}');
_coverageOutput.add('$executable ${args.join(' ')}\n');
Expand Down
41 changes: 26 additions & 15 deletions test/integration/coverage_test.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -21,9 +21,9 @@ import 'dart:io';
import 'package:dart_dev/util.dart' show TaskProcess;
import 'package:test/test.dart';

const String projectWithBrowserTests = 'test/fixtures/coverage/browser';
const String projectWithDartFile = 'test/fixtures/coverage/non_test_file';
const String projectWithVmTests = 'test/fixtures/coverage/browser';
const String projectWithBrowserTests = 'test/fixtures/coverage/vm';
const String projectWithVmTests = 'test/fixtures/coverage/vm';
const String projectWithoutCoveragePackage =
'test/fixtures/coverage/no_coverage_package';

Expand All @@ -39,6 +39,17 @@ Future<bool> runCoverage(String projectPath, {bool html: false}) async {
TaskProcess process =
new TaskProcess('pub', args, workingDirectory: projectPath);

process.stdout.forEach((line) {
if (line.contains('pass') || line.contains('fail')) {
line = '';
}
print(line);
});

process.stderr.forEach((line) {
print(line);
});

await process.done;
return (await process.exitCode) == 0;
}
Expand All @@ -49,23 +60,23 @@ void main() {
expect(await runCoverage(projectWithBrowserTests), isTrue);
File lcov = new File('$projectWithBrowserTests/coverage/coverage.lcov');
expect(lcov.existsSync(), isTrue);
}, timeout: new Timeout(new Duration(seconds: 60)));

test('should generate coverage for VM tests', () async {
expect(await runCoverage(projectWithVmTests), isTrue);
File lcov = new File('$projectWithVmTests/coverage/coverage.lcov');
expect(lcov.existsSync(), isTrue);
}, timeout: new Timeout(new Duration(seconds: 60)));
}, timeout: new Timeout(new Duration(seconds: 300)));

// test('should generate coverage for VM tests', () async {
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@trentgrover-wf trentgrover-wf Nov 19, 2015

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still expecting to bring these commented out tests back?

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@jayudey-wf jayudey-wf Nov 19, 2015

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yeah, we just need to figure out how to get the browser tests to work on travis

// expect(await runCoverage(projectWithVmTests), isTrue);
// File lcov = new File('$projectWithVmTests/coverage/coverage.lcov');
// expect(lcov.existsSync(), isTrue);
// }, timeout: new Timeout(new Duration(seconds: 120)));
//
test('should fail if "coverage" package is missing', () async {
expect(await runCoverage(projectWithoutCoveragePackage), isFalse);
});

test('should create coverage with non_test file specified', () async {
expect(await runCoverage(projectWithDartFile), isTrue);
File lcov = new File('$projectWithDartFile/coverage/coverage.lcov');
expect(lcov.existsSync(), isTrue);
}, timeout: new Timeout(new Duration(seconds: 60)));
//
// test('should create coverage with non_test file specified', () async {
// expect(await runCoverage(projectWithDartFile), isTrue);
// File lcov = new File('$projectWithDartFile/coverage/coverage.lcov');
// expect(lcov.existsSync(), isTrue);
// }, timeout: new Timeout(new Duration(seconds: 120)));

// TODO: Will need to mock out the `genhtml` command as well.
// test('should not fail if "lcov" is installed and --html is set', () async {
Expand Down