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phorge-arcanist/src/unit/engine/XUnitTestEngine.php
Aviv Eyal 4103bc423c get Config Manager to Unit engine and use getConfigFromAnySource
Summary:
somewhat related to D7271 and D7377.
Not actually broken right now, but might be worth it for completeness.

Test Plan: arc unit invokes PHPUnit; Can't test Csharp/XUnit on my end.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley

CC: aurelijus, Korvin, epriestley, aran

Differential Revision: https://secure.phabricator.com/D7381
2013-10-22 13:58:32 -07:00

452 lines
15 KiB
PHP

<?php
/**
* Uses xUnit (http://xunit.codeplex.com/) to test C# code.
*
* Assumes that when modifying a file with a path like `SomeAssembly/MyFile.cs`,
* that the test assembly that verifies the functionality of `SomeAssembly` is
* located at `SomeAssembly.Tests`.
*
* @group unitrun
* @concrete-extensible
*/
class XUnitTestEngine extends ArcanistBaseUnitTestEngine {
protected $runtimeEngine;
protected $buildEngine;
protected $testEngine;
protected $projectRoot;
protected $xunitHintPath;
/**
* This test engine supports running all tests.
*/
protected function supportsRunAllTests() {
return true;
}
/**
* Determines what executables and test paths to use. Between platforms
* this also changes whether the test engine is run under .NET or Mono. It
* also ensures that all of the required binaries are available for the tests
* to run successfully.
*
* @return void
*/
protected function loadEnvironment($config_item = 'unit.xunit.binary') {
$this->projectRoot = $this->getWorkingCopy()->getProjectRoot();
// Determine build engine.
if (Filesystem::binaryExists("msbuild")) {
$this->buildEngine = "msbuild";
} else if (Filesystem::binaryExists("xbuild")) {
$this->buildEngine = "xbuild";
} else {
throw new Exception("Unable to find msbuild or xbuild in PATH!");
}
// Determine runtime engine (.NET or Mono).
if (phutil_is_windows()) {
$this->runtimeEngine = "";
} else if (Filesystem::binaryExists("mono")) {
$this->runtimeEngine = Filesystem::resolveBinary("mono");
} else {
throw new Exception("Unable to find Mono and you are not on Windows!");
}
// Determine xUnit test runner path.
if ($this->xunitHintPath === null) {
$this->xunitHintPath =
$this->getConfigurationManager()->getConfigFromAnySource(
'unit.xunit.binary');
}
if ($this->xunitHintPath === null) {
}
$xunit = $this->projectRoot."/".$this->xunitHintPath;
if (file_exists($xunit)) {
$this->testEngine = Filesystem::resolvePath($xunit);
} else if (Filesystem::binaryExists("xunit.console.clr4.exe")) {
$this->testEngine = "xunit.console.clr4.exe";
} else {
throw new Exception(
"Unable to locate xUnit console runner. Configure ".
"it with the `$config_item' option in .arcconfig");
}
}
/**
* Returns all available tests and related projects. Recurses into
* Protobuild submodules if they are present.
*
* @return array Mappings of test project to project being tested.
*/
public function getAllAvailableTestsAndRelatedProjects($path = null) {
if ($path == null) {
$path = $this->projectRoot;
}
$entries = Filesystem::listDirectory($path);
$mappings = array();
foreach ($entries as $entry) {
if (substr($entry, -6) === ".Tests") {
if (is_dir($path."/".$entry)) {
$mappings[$path."/".$entry] = $path."/".
substr($entry, 0, strlen($entry) - 6);
}
} elseif (is_dir($path."/".$entry."/Build")) {
if (file_exists($path."/".$entry."/Build/Module.xml")) {
// The entry is a Protobuild submodule, which we should
// also recurse into.
$submappings =
$this->getAllAvailableTestsAndRelatedProjects($path."/".$entry);
foreach ($submappings as $key => $value) {
$mappings[$key] = $value;
}
}
}
}
return $mappings;
}
/**
* Main entry point for the test engine. Determines what assemblies to
* build and test based on the files that have changed.
*
* @return array Array of test results.
*/
public function run() {
$this->loadEnvironment();
$affected_tests = array();
if ($this->getRunAllTests()) {
echo "Loading tests..."."\n";
$entries = $this->getAllAvailableTestsAndRelatedProjects();
foreach ($entries as $key => $value) {
echo "Test: ".substr($key, strlen($this->projectRoot) + 1)."\n";
$affected_tests[] = substr($key, strlen($this->projectRoot) + 1);
}
} else {
$paths = $this->getPaths();
foreach ($paths as $path) {
if (substr($path, -4) == ".dll" ||
substr($path, -4) == ".mdb") {
continue;
}
if (substr_count($path, "/") > 0) {
$components = explode("/", $path);
$affected_assembly = $components[0];
// If the change is made inside an assembly that has a `.Tests`
// extension, then the developer has changed the actual tests.
if (substr($affected_assembly, -6) === ".Tests") {
$affected_assembly_path = Filesystem::resolvePath(
$affected_assembly);
$test_assembly = $affected_assembly;
} else {
$affected_assembly_path = Filesystem::resolvePath(
$affected_assembly.".Tests");
$test_assembly = $affected_assembly.".Tests";
}
if (is_dir($affected_assembly_path) &&
!in_array($test_assembly, $affected_tests)) {
$affected_tests[] = $test_assembly;
}
}
}
}
return $this->runAllTests($affected_tests);
}
/**
* Builds and runs the specified test assemblies.
*
* @param array Array of test assemblies.
* @return array Array of test results.
*/
public function runAllTests(array $test_assemblies) {
if (empty($test_assemblies)) {
return array();
}
$results = array();
$results[] = $this->generateProjects();
if ($this->resultsContainFailures($results)) {
return array_mergev($results);
}
$results[] = $this->buildProjects($test_assemblies);
if ($this->resultsContainFailures($results)) {
return array_mergev($results);
}
$results[] = $this->testAssemblies($test_assemblies);
return array_mergev($results);
}
/**
* Determine whether or not a current set of results contains any failures.
* This is needed since we build the assemblies as part of the unit tests, but
* we can't run any of the unit tests if the build fails.
*
* @param array Array of results to check.
* @return bool If there are any failures in the results.
*/
private function resultsContainFailures(array $results) {
$results = array_mergev($results);
foreach ($results as $result) {
if ($result->getResult() != ArcanistUnitTestResult::RESULT_PASS) {
return true;
}
}
return false;
}
/**
* If the `Build` directory exists, we assume that this is a multi-platform
* project that requires generation of C# project files. Because we want to
* test that the generation and subsequent build is whole, we need to
* regenerate any projects in case the developer has added files through an
* IDE and then forgotten to add them to the respective `.definitions` file.
* By regenerating the projects we ensure that any missing definition entries
* will cause the build to fail.
*
* @return array Array of test results.
*/
private function generateProjects() {
// No "Build" directory; so skip generation of projects.
if (!is_dir(Filesystem::resolvePath($this->projectRoot."/Build"))) {
return array();
}
// Work out what platform the user is building for already.
$platform = phutil_is_windows() ? "Windows" : "Linux";
$files = Filesystem::listDirectory($this->projectRoot);
foreach ($files as $file) {
if (strtolower(substr($file, -4)) == ".sln") {
$parts = explode(".", $file);
$platform = $parts[count($parts) - 2];
break;
}
}
$regenerate_start = microtime(true);
$regenerate_future = new ExecFuture(
"%C Protobuild.exe --resync %s",
$this->runtimeEngine,
$platform);
$regenerate_future->setCWD(Filesystem::resolvePath(
$this->projectRoot));
$results = array();
$result = new ArcanistUnitTestResult();
$result->setName("(regenerate projects for $platform)");
try {
$regenerate_future->resolvex();
$result->setResult(ArcanistUnitTestResult::RESULT_PASS);
} catch(CommandException $exc) {
if ($exc->getError() > 1) {
throw $exc;
}
$result->setResult(ArcanistUnitTestResult::RESULT_FAIL);
$result->setUserdata($exc->getStdout());
}
$result->setDuration(microtime(true) - $regenerate_start);
$results[] = $result;
return $results;
}
/**
* Build the projects relevant for the specified test assemblies and return
* the results of the builds as test results. This build also passes the
* "SkipTestsOnBuild" parameter when building the projects, so that MSBuild
* conditionals can be used to prevent any tests running as part of the
* build itself (since the unit tester is about to run each of the tests
* individually).
*
* @param array Array of test assemblies.
* @return array Array of test results.
*/
private function buildProjects(array $test_assemblies) {
$build_futures = array();
$build_failed = false;
$build_start = microtime(true);
$results = array();
foreach ($test_assemblies as $test_assembly) {
$build_future = new ExecFuture(
"%C %s",
$this->buildEngine,
"/p:SkipTestsOnBuild=True");
$build_future->setCWD(Filesystem::resolvePath(
$this->projectRoot."/".$test_assembly));
$build_futures[$test_assembly] = $build_future;
}
$iterator = Futures($build_futures)->limit(1);
foreach ($iterator as $test_assembly => $future) {
$result = new ArcanistUnitTestResult();
$result->setName("(build) ".$test_assembly);
try {
$future->resolvex();
$result->setResult(ArcanistUnitTestResult::RESULT_PASS);
} catch(CommandException $exc) {
if ($exc->getError() > 1) {
throw $exc;
}
$result->setResult(ArcanistUnitTestResult::RESULT_FAIL);
$result->setUserdata($exc->getStdout());
$build_failed = true;
}
$result->setDuration(microtime(true) - $build_start);
$results[] = $result;
}
return $results;
}
/**
* Build the future for running a unit test. This can be
* overridden to enable support for code coverage via
* another tool
*
* @param string Name of the test assembly.
* @return array The future, output filename and coverage filename
* stored in an array.
*/
protected function buildTestFuture($test_assembly) {
// FIXME: Can't use TempFile here as xUnit doesn't like
// UNIX-style full paths. It sees the leading / as the
// start of an option flag, even when quoted.
$xunit_temp = $test_assembly.".results.xml";
if (file_exists($xunit_temp)) {
unlink($xunit_temp);
}
$future = new ExecFuture(
"%C %s /xml %s /silent",
trim($this->runtimeEngine." ".$this->testEngine),
$test_assembly."/bin/Debug/".$test_assembly.".dll",
$xunit_temp);
$future->setCWD(Filesystem::resolvePath($this->projectRoot));
return array($future, $xunit_temp, null);
}
/**
* Run the xUnit test runner on each of the assemblies and parse the
* resulting XML.
*
* @param array Array of test assemblies.
* @return array Array of test results.
*/
private function testAssemblies(array $test_assemblies) {
$results = array();
// Build the futures for running the tests.
$futures = array();
$outputs = array();
$coverages = array();
foreach ($test_assemblies as $test_assembly) {
list($future, $xunit_temp, $coverage) =
$this->buildTestFuture($test_assembly);
$futures[$test_assembly] = $future;
$outputs[$test_assembly] = $xunit_temp;
$coverages[$test_assembly] = $coverage;
}
// Run all of the tests.
foreach (Futures($futures) as $test_assembly => $future) {
$future->resolve();
if (file_exists($outputs[$test_assembly])) {
$result = $this->parseTestResult(
$outputs[$test_assembly],
$coverages[$test_assembly]);
$results[] = $result;
unlink($outputs[$test_assembly]);
} else {
$result = new ArcanistUnitTestResult();
$result->setName("(execute) ".$test_assembly);
$result->setResult(ArcanistUnitTestResult::RESULT_BROKEN);
$result->setUserData($outputs[$test_assembly]." not found on disk.");
$results[] = array($result);
}
}
return array_mergev($results);
}
/**
* Returns null for this implementation as xUnit does not support code
* coverage directly. Override this method in another class to provide
* code coverage information (also see `CSharpToolsUnitEngine`).
*
* @param string The name of the coverage file if one was provided by
* `buildTestFuture`.
* @return array Code coverage results, or null.
*/
protected function parseCoverageResult($coverage) {
return null;
}
/**
* Parses the test results from xUnit.
*
* @param string The name of the xUnit results file.
* @param string The name of the coverage file if one was provided by
* `buildTestFuture`. This is passed through to
* `parseCoverageResult`.
* @return array Test results.
*/
private function parseTestResult($xunit_tmp, $coverage) {
$xunit_dom = new DOMDocument();
$xunit_dom->loadXML(Filesystem::readFile($xunit_tmp));
$results = array();
$tests = $xunit_dom->getElementsByTagName("test");
foreach ($tests as $test) {
$name = $test->getAttribute("name");
$time = $test->getAttribute("time");
$status = ArcanistUnitTestResult::RESULT_UNSOUND;
switch ($test->getAttribute("result")) {
case "Pass":
$status = ArcanistUnitTestResult::RESULT_PASS;
break;
case "Fail":
$status = ArcanistUnitTestResult::RESULT_FAIL;
break;
case "Skip":
$status = ArcanistUnitTestResult::RESULT_SKIP;
break;
}
$userdata = "";
$reason = $test->getElementsByTagName("reason");
$failure = $test->getElementsByTagName("failure");
if ($reason->length > 0 || $failure->length > 0) {
$node = ($reason->length > 0) ? $reason : $failure;
$message = $node->item(0)->getElementsByTagName("message");
if ($message->length > 0) {
$userdata = $message->item(0)->nodeValue;
}
$stacktrace = $node->item(0)->getElementsByTagName("stack-trace");
if ($stacktrace->length > 0) {
$userdata .= "\n".$stacktrace->item(0)->nodeValue;
}
}
$result = new ArcanistUnitTestResult();
$result->setName($name);
$result->setResult($status);
$result->setDuration($time);
$result->setUserData($userdata);
if ($coverage != null) {
$result->setCoverage($this->parseCoverageResult($coverage));
}
$results[] = $result;
}
return $results;
}
}