mirror of
https://github.com/dart-lang/sdk
synced 2024-11-02 10:49:00 +00:00
c92af46433
Bug: https://github.com/dart-lang/sdk/issues/36900 Change-Id: I1306b2df7c789597e49d2033b660a3ea62d6c1a4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/104525 Commit-Queue: Todd Volkert <tvolkert@google.com> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
610 lines
23 KiB
Dart
Executable file
610 lines
23 KiB
Dart
Executable file
#!/usr/bin/env dart
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// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Run tests like on the given builder and/or named configuration.
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import 'dart:async';
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import 'dart:collection';
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import 'dart:convert';
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import 'dart:io';
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import 'package:args/args.dart';
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import 'bots/results.dart';
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const int deflakingCount = 5;
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/// Quotes a string in shell single quote mode. This function produces a single
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/// shell argument that evaluates to the exact string provided, handling any
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/// special characters in the input string. Shell single quote mode works uses
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/// the single quote character as the delimiter and uses the characters
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/// in-between verbatim without any special processing. To insert the single
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/// quote character itself, escape single quote mode, insert an escaped single
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/// quote, and then return to single quote mode.
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///
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/// Examples:
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/// foo becomes 'foo'
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/// foo bar becomes 'foo bar'
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/// foo\ bar becomes 'foo\ bar'
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/// foo's bar becomes 'foo '\''s bar'
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/// foo "b"ar becomes 'foo "b"'
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/// foo
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/// bar becomes 'foo
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/// bar'
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String shellSingleQuote(String string) {
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return "'${string.replaceAll("'", "'\\''")}'";
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}
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/// Like [shellSingleQuote], but if the string only contains safe ASCII
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/// characters, don't quote it. Note that it's not always safe to omit the
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/// quotes even if the string only has safe characters, as doing so might match
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/// a shell keyword or a shell builtin in the first argument in a command. It
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/// should be safe to use this for the second argument onwards in a command.
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String simpleShellSingleQuote(String string) {
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return new RegExp(r"^[a-zA-Z0-9%+,./:_-]*$").hasMatch(string)
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? string
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: shellSingleQuote(string);
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}
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/// Runs a process and exits likewise if the process exits non-zero.
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Future<ProcessResult> runProcess(String executable, List<String> arguments,
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{bool runInShell = false}) async {
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final processResult =
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await Process.run(executable, arguments, runInShell: runInShell);
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if (processResult.exitCode != 0) {
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final command =
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[executable, ...arguments].map(simpleShellSingleQuote).join(" ");
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throw new Exception("Command exited ${processResult.exitCode}: $command\n"
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"${processResult.stdout}\n${processResult.stderr}");
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}
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return processResult;
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}
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/// Runs a process and exits likewise if the process exits non-zero, but let the
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/// child process inherit out stdio handles.
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Future<ProcessResult> runProcessInheritStdio(
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String executable, List<String> arguments,
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{bool runInShell = false}) async {
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final process = await Process.start(executable, arguments,
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mode: ProcessStartMode.inheritStdio, runInShell: runInShell);
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final exitCode = await process.exitCode;
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final processResult = new ProcessResult(process.pid, exitCode, "", "");
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if (processResult.exitCode != 0) {
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final command =
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[executable, ...arguments].map(simpleShellSingleQuote).join(" ");
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throw new Exception("Command exited ${processResult.exitCode}: $command");
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}
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return processResult;
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}
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/// Returns the operating system of a builder.
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String systemOfBuilder(String builder) {
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return builder.split("-").firstWhere(
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(component) => ["linux", "mac", "win"].contains(component),
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orElse: () => null);
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}
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/// Returns the product mode of a builder.
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String modeOfBuilder(String builder) {
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return builder.split("-").firstWhere(
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(component) => ["debug", "product", "release"].contains(component),
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orElse: () => null);
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}
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/// Returns the machine architecture of a builder.
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String archOfBuilder(String builder) {
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return builder.split("-").firstWhere(
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(component) => [
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"arm",
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"arm64",
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"armsimdbc",
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"armsimdbc64",
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"ia32",
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"simarm",
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"simarm64",
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"simdbc",
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"simdbc64",
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"x64",
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].contains(component),
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orElse: () => null);
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}
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/// Returns the runtime environment of a builder.
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String runtimeOfBuilder(String builder) {
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return builder.split("-").firstWhere(
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(component) => ["chrome", "d8", "edge", "firefox", "ie11", "safari"]
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.contains(component),
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orElse: () => null);
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}
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/// Expands a variable in a test matrix step command.
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String expandVariable(String string, String variable, String value) {
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return string.replaceAll("\${$variable}", value ?? "");
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}
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/// Expands all variables in a test matrix step command.
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String expandVariables(String string, String builder) {
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string = expandVariable(string, "system", systemOfBuilder(builder));
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string = expandVariable(string, "mode", modeOfBuilder(builder));
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string = expandVariable(string, "arch", archOfBuilder(builder));
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string = expandVariable(string, "runtime", runtimeOfBuilder(builder));
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return string;
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}
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/// Finds the branch of a builder given the list of branches.
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String branchOfBuilder(String builder, List<String> branches) {
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return branches.where((branch) => branch != "master").firstWhere(
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(branch) => builder.endsWith("-$branch"),
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orElse: () => "master");
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}
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/// Finds the named configuration to test according to the test matrix
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/// information and the command line options.
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bool resolveNamedConfiguration(
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List<String> branches,
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List<dynamic> buildersConfigurations,
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String requestedBranch,
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String requestedNamedConfiguration,
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String requestedBuilder,
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Set<String> outputNamedConfiguration,
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Set<String> outputBuilders) {
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bool foundBuilder = false;
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for (final builderConfiguration in buildersConfigurations) {
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for (final builder in builderConfiguration["builders"]) {
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if (requestedBuilder != null && builder != requestedBuilder) {
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continue;
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}
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final branch = branchOfBuilder(builder, branches);
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if (branch != requestedBranch) {
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if (requestedBuilder == null) {
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continue;
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}
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stderr.writeln("error: Builder $requestedBuilder is on branch $branch "
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"rather than $requestedBranch");
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stderr.writeln("error: To compare with that branch, use: -B $branch");
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return false;
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}
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foundBuilder = true;
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final steps = (builderConfiguration["steps"] as List).cast<Map>();
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final testSteps = steps
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.where((step) =>
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!step.containsKey("script") || step["script"] == "tools/test.py")
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.toList();
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for (final step in testSteps) {
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final arguments = step["arguments"]
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.map((argument) => expandVariables(argument, builder))
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.toList();
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final namedConfiguration = arguments
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.firstWhere((argument) => (argument as String).startsWith("-n"))
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.substring(2);
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if (requestedNamedConfiguration == null ||
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requestedNamedConfiguration == namedConfiguration) {
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outputNamedConfiguration.add(namedConfiguration);
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outputBuilders.add(builder);
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}
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}
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}
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}
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if (requestedBuilder != null && !foundBuilder) {
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stderr.writeln("error: Builder $requestedBuilder doesn't exist");
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return false;
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}
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if (requestedBuilder != null &&
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requestedNamedConfiguration == null &&
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outputNamedConfiguration.isEmpty) {
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stderr.writeln("error: Builder $requestedBuilder isn't testing any named "
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"configurations");
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return false;
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}
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if (requestedBuilder != null &&
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requestedNamedConfiguration != null &&
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outputNamedConfiguration.isEmpty) {
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stderr.writeln("error: The builder $requestedBuilder isn't testing the "
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"named configuration $requestedNamedConfiguration");
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return false;
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}
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if (requestedNamedConfiguration != null && outputBuilders.isEmpty) {
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stderr.writeln("error: The named configuration "
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"$requestedNamedConfiguration isn't tested on any builders");
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return false;
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}
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return true;
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}
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/// Locates the merge base between head and the [branch] on the given [remote].
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/// If a particular [commit] was requested, use that.
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Future<String> findMergeBase(
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String commit, String remote, String branch) async {
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if (commit != null) {
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return commit;
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}
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final arguments = ["merge-base", "$remote/$branch", "HEAD"];
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final result =
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await Process.run("git", arguments, runInShell: Platform.isWindows);
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if (result.exitCode != 0) {
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throw new Exception("Failed to run: git ${arguments.join(' ')}\n"
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"stdout:\n${result.stdout}\n"
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"stderr:\n${result.stderr}\n");
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}
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return LineSplitter.split(result.stdout).first;
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}
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/// Exception thrown when looking up the build for a commit failed.
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class CommitNotBuiltException implements Exception {
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final String reason;
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CommitNotBuiltException(this.reason);
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String toString() => reason;
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}
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/// The result after searching for a build of a commit.
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class BuildSearchResult {
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final int build;
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final String commit;
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BuildSearchResult(this.build, this.commit);
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}
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/// Locates the build number of the [commit] on the [builder], or throws an
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/// exception if the builder hasn't built the commit.
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Future<BuildSearchResult> searchForBuild(String builder, String commit) async {
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final requestUrl = Uri.parse(
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"https://cr-buildbucket.appspot.com/_ah/api/buildbucket/v1/search"
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"?bucket=luci.dart.ci.sandbox"
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"&tag=builder%3A$builder"
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"&tag=buildset%3Acommit%2Fgit%2F$commit"
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"&fields=builds(status%2Ctags%2Curl)");
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final client = new HttpClient();
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final request = await client.getUrl(requestUrl);
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final response = await request.close();
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final Map<String, dynamic> object = await response
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.cast<List<int>>()
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.transform(new Utf8Decoder())
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.transform(new JsonDecoder())
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.first;
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client.close();
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final builds = object["builds"];
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if (builds == null || builds.isEmpty) {
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throw new CommitNotBuiltException(
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"Builder $builder hasn't built commit $commit");
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}
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final build = builds.last;
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final tags = (build["tags"] as List).cast<String>();
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final buildAddressTag =
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tags.firstWhere((tag) => tag.startsWith("build_address:"));
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final buildAddress = buildAddressTag.substring("build_address:".length);
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if (build["status"] != "COMPLETED") {
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throw new CommitNotBuiltException(
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"Build $buildAddress isn't completed yet");
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}
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return new BuildSearchResult(int.parse(buildAddress.split("/").last), commit);
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}
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Future<BuildSearchResult> searchForApproximateBuild(
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String builder, String commit) async {
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try {
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return await searchForBuild(builder, commit);
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} on CommitNotBuiltException catch (e) {
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print("Warning: $e, searching for an inexact previous build...");
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final int limit = 25;
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final arguments = [
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"rev-list",
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"$commit~$limit..$commit~1",
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"--first-parent",
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"--topo-order"
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];
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final processResult = await Process.run("git", arguments, runInShell: true);
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if (processResult.exitCode != 0) {
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throw new Exception("Failed to list potential commits: git $arguments\n"
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"exitCode: ${processResult.exitCode}\n"
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"stdout: ${processResult.stdout}\n"
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"stdout: ${processResult.stderr}\n");
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}
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for (final fallbackCommit in LineSplitter.split(processResult.stdout)) {
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try {
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return await searchForBuild(builder, fallbackCommit);
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} catch (e) {
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print(
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"Warning: Searching for inexact baseline build: $e, continuing...");
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}
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}
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throw new CommitNotBuiltException(
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"Failed to locate approximate baseline results for "
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"$commit in past $limit commits");
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}
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}
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void main(List<String> args) async {
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final parser = new ArgParser();
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parser.addOption("builder",
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abbr: "b", help: "Run tests like on the given builder");
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parser.addOption("branch",
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abbr: "B",
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help: "Select the builders building this branch",
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defaultsTo: "master");
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parser.addOption("commit", abbr: "C", help: "Compare with this commit");
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parser.addFlag("deflake",
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help: "Re-run failing newly tests $deflakingCount times.");
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parser.addFlag("report-flakes",
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help: "Report test failures for tests known to be flaky.\n"
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"This ignores all flakiness data from CI but flakes\n"
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"detected by --deflake will remain hidden");
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parser.addFlag("list-configurations",
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help: "Output list of configurations.", negatable: false);
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parser.addOption("named-configuration",
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abbr: "n",
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help: "The named test configuration that supplies the\nvalues for all "
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"test options, specifying how tests\nshould be run.");
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parser.addOption("local-configuration",
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abbr: "N",
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help: "Use a different named configuration for local\ntesting than the "
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"named configuration the baseline\nresults were downloaded for. The "
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"results may be\ninexact if the baseline configuration is "
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"different.");
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parser.addOption("remote",
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abbr: "R",
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help: "Compare with this remote and git branch",
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defaultsTo: "origin");
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parser.addFlag("help", help: "Show the program usage.", negatable: false);
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final options = parser.parse(args);
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if (options["help"] ||
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(options["builder"] == null &&
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options["named-configuration"] == null &&
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!options["list-configurations"])) {
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print("""
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Usage: test.dart -b [BUILDER] -n [CONFIGURATION] [OPTION]... [--]
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[TEST.PY OPTION]... [SELECTOR]...
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Run tests and compare with the results on the given builder. Either the -n or
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the -b option, or both, must be used. Any options following -- and non-option
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arguments will be forwarded to test.py invocations. The specified named
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configuration's results will be downloaded from the specified builder. If only a
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named configuration is specified, the results are downloaded from the
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appropriate builders. If only a builder is specified, the default named
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configuration is used if the builder only has a single named configuration.
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Otherwise the available named configurations are listed.
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See the documentation at https://goto.google.com/dart-status-file-free-workflow
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${parser.usage}""");
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return;
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}
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if (options["list-configurations"]) {
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final process = await Process.start(
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"python", ["tools/test.py", "--list-configurations"],
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mode: ProcessStartMode.inheritStdio, runInShell: Platform.isWindows);
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exitCode = await process.exitCode;
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return;
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}
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// Locate gsutil.py.
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gsutilPy =
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Platform.script.resolve("../third_party/gsutil/gsutil.py").toFilePath();
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// Load the test matrix.
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final scriptPath = Platform.script.toFilePath();
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final testMatrixPath =
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scriptPath.substring(0, scriptPath.length - "test.dart".length) +
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"bots/test_matrix.json";
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final testMatrix = jsonDecode(await new File(testMatrixPath).readAsString());
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final branches = (testMatrix["branches"] as List).cast<String>();
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final buildersConfigurations =
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testMatrix["builder_configurations"] as List<dynamic>;
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// Determine what named configuration to run and which builders to download
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// existing results from.
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final namedConfigurations = new SplayTreeSet<String>();
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final builders = new SplayTreeSet<String>();
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if (!resolveNamedConfiguration(
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branches,
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buildersConfigurations,
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options["branch"],
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options["named-configuration"],
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options["builder"],
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namedConfigurations,
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builders)) {
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exitCode = 1;
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return;
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}
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if (namedConfigurations.length > 1) {
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final builder = builders.single;
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stderr.writeln(
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"error: The builder $builder is testing multiple named configurations");
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stderr.writeln(
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"error: Please select the desired named configuration using -n:");
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for (final namedConfiguration in namedConfigurations) {
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stderr.writeln(" -n $namedConfiguration");
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}
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exitCode = 1;
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return;
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}
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final namedConfiguration = namedConfigurations.single;
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final localConfiguration =
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options["local-configuration"] as String ?? namedConfiguration;
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for (final builder in builders) {
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if (localConfiguration != namedConfiguration) {
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print("Testing the named configuration $localConfiguration "
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"compared with builder $builder's configuration $namedConfiguration");
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} else {
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print("Testing the named configuration $localConfiguration "
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"compared with builder $builder");
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}
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}
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// Find out where the current HEAD branched.
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final commit = await findMergeBase(
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options["commit"], options["remote"], options["branch"]);
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print("Base commit is $commit");
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// Store the downloaded results and our test results in a temporary directory.
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final outDirectory = await Directory.systemTemp.createTemp("test.dart.");
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try {
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final mergedResults = <String, Map<String, dynamic>>{};
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final mergedFlaky = <String, Map<String, dynamic>>{};
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// Use the buildbucket API to search for builds of the right commit.
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final inexactBuilds = new SplayTreeMap<String, String>();
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for (final builder in builders) {
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// Download the previous results and flakiness info from cloud storage.
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print("Finding build on builder $builder to compare with...");
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final buildSearchResult =
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await searchForApproximateBuild(builder, commit);
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if (buildSearchResult.commit != commit) {
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print("Warning: Using commit ${buildSearchResult.commit} "
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"as baseline instead of $commit for $builder");
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inexactBuilds[builder] = buildSearchResult.commit;
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}
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final buildNumber = buildSearchResult.build.toString();
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print("Downloading results from builder $builder build $buildNumber...");
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await cpGsutil(buildFileCloudPath(builder, buildNumber, "results.json"),
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"${outDirectory.path}/previous.json");
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if (!options["report-flakes"]) {
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await cpGsutil(buildFileCloudPath(builder, buildNumber, "flaky.json"),
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"${outDirectory.path}/flaky.json");
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}
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print("Downloaded baseline results from builder $builder");
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// Merge the results for the builders.
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if (builders.length > 1) {
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mergedResults
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.addAll(await loadResultsMap("${outDirectory.path}/previous.json"));
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if (!options["report-flakes"]) {
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mergedFlaky
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.addAll(await loadResultsMap("${outDirectory.path}/flaky.json"));
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}
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}
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}
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// Write out the merged results for the builders.
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if (builders.length > 1) {
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await new File("${outDirectory.path}/previous.json").writeAsString(
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mergedResults.values.map((data) => jsonEncode(data) + "\n").join(""));
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}
|
|
|
|
// Ensure that there is a flaky.json even if it wasn't downloaded.
|
|
if (builders.length > 1 || options["report-flakes"]) {
|
|
await new File("${outDirectory.path}/flaky.json").writeAsString(
|
|
mergedFlaky.values.map((data) => jsonEncode(data) + "\n").join(""));
|
|
}
|
|
|
|
// Override the named configuration in the baseline data if needed.
|
|
if (namedConfiguration != localConfiguration) {
|
|
for (final path in [
|
|
"${outDirectory.path}/previous.json",
|
|
"${outDirectory.path}/flaky.json"
|
|
]) {
|
|
final results = await loadResultsMap(path);
|
|
final records = results.values
|
|
.where((r) => r["configuration"] == namedConfiguration)
|
|
.toList()
|
|
..forEach((r) => r["configuration"] = localConfiguration);
|
|
await new File(path).writeAsString(
|
|
records.map((data) => jsonEncode(data) + "\n").join(""));
|
|
}
|
|
}
|
|
|
|
// Run the tests.
|
|
final arguments = [
|
|
"--named-configuration=$localConfiguration",
|
|
"--output-directory=${outDirectory.path}",
|
|
"--clean-exit",
|
|
"--silent-failures",
|
|
"--write-results",
|
|
"--write-logs",
|
|
...options.rest,
|
|
];
|
|
print("".padLeft(80, "="));
|
|
print("Running tests");
|
|
print("".padLeft(80, "="));
|
|
await runProcessInheritStdio("python", ["tools/test.py", ...arguments],
|
|
runInShell: Platform.isWindows);
|
|
|
|
if (options["deflake"]) {
|
|
await deflake(outDirectory, localConfiguration, options.rest);
|
|
}
|
|
|
|
// Write out the final comparison.
|
|
print("".padLeft(80, "="));
|
|
print("Test Results");
|
|
print("".padLeft(80, "="));
|
|
final compareOutput = await runProcess(Platform.resolvedExecutable, [
|
|
"tools/bots/compare_results.dart",
|
|
"--human",
|
|
"--verbose",
|
|
"--changed",
|
|
"--failing",
|
|
"--passing",
|
|
"--flakiness-data=${outDirectory.path}/flaky.json",
|
|
"--logs=${outDirectory.path}/logs.json",
|
|
"${outDirectory.path}/previous.json",
|
|
"${outDirectory.path}/results.json",
|
|
]);
|
|
if (compareOutput.stdout == "") {
|
|
print("There were no test failures.");
|
|
} else {
|
|
stdout.write(compareOutput.stdout);
|
|
}
|
|
if (inexactBuilds.isNotEmpty) {
|
|
print("");
|
|
inexactBuilds.forEach((String builder, String inexactCommit) => print(
|
|
"Warning: Results may be inexact because commit ${inexactCommit} "
|
|
"was used as the baseline for $builder instead of $commit"));
|
|
}
|
|
} finally {
|
|
await outDirectory.delete(recursive: true);
|
|
}
|
|
}
|
|
|
|
void deflake(Directory outDirectory, String localConfiguration,
|
|
List<String> testPyArgs) async {
|
|
// Find the list of tests to deflake.
|
|
final deflakeListOutput = await runProcess(Platform.resolvedExecutable, [
|
|
"tools/bots/compare_results.dart",
|
|
"--changed",
|
|
"--failing",
|
|
"--passing",
|
|
"--flakiness-data=${outDirectory.path}/flaky.json",
|
|
"${outDirectory.path}/previous.json",
|
|
"${outDirectory.path}/results.json",
|
|
]);
|
|
final deflakeListPath = "${outDirectory.path}/deflake.list";
|
|
final deflakeListFile = new File(deflakeListPath);
|
|
await deflakeListFile.writeAsString(deflakeListOutput.stdout);
|
|
|
|
// Deflake the changed tests.
|
|
final deflakingResultsPaths = <String>[];
|
|
for (int i = 1; deflakeListOutput.stdout != "" && i <= deflakingCount; i++) {
|
|
print("".padLeft(80, "="));
|
|
print("Running deflaking iteration $i");
|
|
print("".padLeft(80, "="));
|
|
final deflakeDirectory = new Directory("${outDirectory.path}/$i");
|
|
await deflakeDirectory.create();
|
|
final deflakeArguments = <String>[
|
|
"--named-configuration=$localConfiguration",
|
|
"--output-directory=${deflakeDirectory.path}",
|
|
"--clean-exit",
|
|
"--silent-failures",
|
|
"--write-results",
|
|
"--test-list=$deflakeListPath",
|
|
...testPyArgs,
|
|
];
|
|
await runProcessInheritStdio(
|
|
"python", ["tools/test.py", ...deflakeArguments],
|
|
runInShell: Platform.isWindows);
|
|
deflakingResultsPaths.add("${deflakeDirectory.path}/results.json");
|
|
}
|
|
|
|
// Update the flakiness information based on what we've learned.
|
|
print("Updating flakiness information...");
|
|
await runProcess(Platform.resolvedExecutable, [
|
|
"tools/bots/update_flakiness.dart",
|
|
"--input=${outDirectory.path}/flaky.json",
|
|
"--output=${outDirectory.path}/flaky.json",
|
|
"${outDirectory.path}/results.json",
|
|
...deflakingResultsPaths,
|
|
]);
|
|
}
|