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545 lines
19 KiB
Python
Executable File
545 lines
19 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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lit - LLVM Integrated Tester.
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See lit.pod for more information.
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"""
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import math, os, platform, random, re, sys, time, threading, traceback
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import ProgressBar
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import TestRunner
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import Util
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from TestingConfig import TestingConfig
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import LitConfig
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import Test
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# Configuration files to look for when discovering test suites. These can be
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# overridden with --config-prefix.
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#
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# FIXME: Rename to 'config.lit', 'site.lit', and 'local.lit' ?
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gConfigName = 'lit.cfg'
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gSiteConfigName = 'lit.site.cfg'
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kLocalConfigName = 'lit.local.cfg'
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class TestingProgressDisplay:
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def __init__(self, opts, numTests, progressBar=None):
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self.opts = opts
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self.numTests = numTests
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self.current = None
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self.lock = threading.Lock()
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self.progressBar = progressBar
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self.completed = 0
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def update(self, test):
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# Avoid locking overhead in quiet mode
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if self.opts.quiet and not test.result.isFailure:
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self.completed += 1
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return
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# Output lock.
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self.lock.acquire()
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try:
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self.handleUpdate(test)
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finally:
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self.lock.release()
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def finish(self):
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if self.progressBar:
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self.progressBar.clear()
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elif self.opts.quiet:
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pass
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elif self.opts.succinct:
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sys.stdout.write('\n')
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def handleUpdate(self, test):
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self.completed += 1
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if self.progressBar:
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self.progressBar.update(float(self.completed)/self.numTests,
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test.getFullName())
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if self.opts.succinct and not test.result.isFailure:
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return
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if self.progressBar:
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self.progressBar.clear()
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print '%s: %s (%d of %d)' % (test.result.name, test.getFullName(),
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self.completed, self.numTests)
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if test.result.isFailure and self.opts.showOutput:
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print "%s TEST '%s' FAILED %s" % ('*'*20, test.getFullName(),
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'*'*20)
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print test.output
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print "*" * 20
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sys.stdout.flush()
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class TestProvider:
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def __init__(self, tests, maxTime):
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self.maxTime = maxTime
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self.iter = iter(tests)
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self.lock = threading.Lock()
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self.startTime = time.time()
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def get(self):
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# Check if we have run out of time.
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if self.maxTime is not None:
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if time.time() - self.startTime > self.maxTime:
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return None
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# Otherwise take the next test.
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self.lock.acquire()
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try:
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item = self.iter.next()
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except StopIteration:
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item = None
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self.lock.release()
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return item
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class Tester(threading.Thread):
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def __init__(self, litConfig, provider, display):
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threading.Thread.__init__(self)
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self.litConfig = litConfig
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self.provider = provider
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self.display = display
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def run(self):
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while 1:
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item = self.provider.get()
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if item is None:
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break
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self.runTest(item)
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def runTest(self, test):
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result = None
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startTime = time.time()
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try:
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result, output = test.config.test_format.execute(test,
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self.litConfig)
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except KeyboardInterrupt:
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# This is a sad hack. Unfortunately subprocess goes
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# bonkers with ctrl-c and we start forking merrily.
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print '\nCtrl-C detected, goodbye.'
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os.kill(0,9)
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except:
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if self.litConfig.debug:
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raise
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result = Test.UNRESOLVED
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output = 'Exception during script execution:\n'
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output += traceback.format_exc()
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output += '\n'
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elapsed = time.time() - startTime
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test.setResult(result, output, elapsed)
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self.display.update(test)
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def dirContainsTestSuite(path):
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cfgpath = os.path.join(path, gSiteConfigName)
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if os.path.exists(cfgpath):
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return cfgpath
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cfgpath = os.path.join(path, gConfigName)
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if os.path.exists(cfgpath):
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return cfgpath
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def getTestSuite(item, litConfig, cache):
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"""getTestSuite(item, litConfig, cache) -> (suite, relative_path)
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Find the test suite containing @arg item.
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@retval (None, ...) - Indicates no test suite contains @arg item.
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@retval (suite, relative_path) - The suite that @arg item is in, and its
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relative path inside that suite.
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"""
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def search1(path):
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# Check for a site config or a lit config.
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cfgpath = dirContainsTestSuite(path)
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# If we didn't find a config file, keep looking.
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if not cfgpath:
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parent,base = os.path.split(path)
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if parent == path:
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return (None, ())
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ts, relative = search(parent)
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return (ts, relative + (base,))
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# We found a config file, load it.
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if litConfig.debug:
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litConfig.note('loading suite config %r' % cfgpath)
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cfg = TestingConfig.frompath(cfgpath, None, litConfig, mustExist = True)
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source_root = os.path.realpath(cfg.test_source_root or path)
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exec_root = os.path.realpath(cfg.test_exec_root or path)
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return Test.TestSuite(cfg.name, source_root, exec_root, cfg), ()
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def search(path):
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# Check for an already instantiated test suite.
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res = cache.get(path)
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if res is None:
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cache[path] = res = search1(path)
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return res
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# Canonicalize the path.
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item = os.path.realpath(item)
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# Skip files and virtual components.
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components = []
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while not os.path.isdir(item):
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parent,base = os.path.split(item)
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if parent == item:
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return (None, ())
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components.append(base)
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item = parent
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components.reverse()
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ts, relative = search(item)
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return ts, tuple(relative + tuple(components))
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def getLocalConfig(ts, path_in_suite, litConfig, cache):
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def search1(path_in_suite):
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# Get the parent config.
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if not path_in_suite:
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parent = ts.config
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else:
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parent = search(path_in_suite[:-1])
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# Load the local configuration.
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source_path = ts.getSourcePath(path_in_suite)
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cfgpath = os.path.join(source_path, kLocalConfigName)
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if litConfig.debug:
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litConfig.note('loading local config %r' % cfgpath)
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return TestingConfig.frompath(cfgpath, parent, litConfig,
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mustExist = False,
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config = parent.clone(cfgpath))
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def search(path_in_suite):
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key = (ts, path_in_suite)
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res = cache.get(key)
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if res is None:
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cache[key] = res = search1(path_in_suite)
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return res
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return search(path_in_suite)
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def getTests(path, litConfig, testSuiteCache, localConfigCache):
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# Find the test suite for this input and its relative path.
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ts,path_in_suite = getTestSuite(path, litConfig, testSuiteCache)
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if ts is None:
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litConfig.warning('unable to find test suite for %r' % path)
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return ()
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if litConfig.debug:
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litConfig.note('resolved input %r to %r::%r' % (path, ts.name,
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path_in_suite))
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return getTestsInSuite(ts, path_in_suite, litConfig,
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testSuiteCache, localConfigCache)
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def getTestsInSuite(ts, path_in_suite, litConfig,
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testSuiteCache, localConfigCache):
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# Check that the source path exists (errors here are reported by the
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# caller).
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source_path = ts.getSourcePath(path_in_suite)
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if not os.path.exists(source_path):
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return
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# Check if the user named a test directly.
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if not os.path.isdir(source_path):
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lc = getLocalConfig(ts, path_in_suite[:-1], litConfig, localConfigCache)
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yield Test.Test(ts, path_in_suite, lc)
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return
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# Otherwise we have a directory to search for tests, start by getting the
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# local configuration.
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lc = getLocalConfig(ts, path_in_suite, litConfig, localConfigCache)
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# Search for tests.
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for res in lc.test_format.getTestsInDirectory(ts, path_in_suite,
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litConfig, lc):
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yield res
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# Search subdirectories.
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for filename in os.listdir(source_path):
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# FIXME: This doesn't belong here?
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if filename in ('Output', '.svn') or filename in lc.excludes:
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continue
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# Ignore non-directories.
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file_sourcepath = os.path.join(source_path, filename)
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if not os.path.isdir(file_sourcepath):
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continue
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# Check for nested test suites, first in the execpath in case there is a
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# site configuration and then in the source path.
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file_execpath = ts.getExecPath(path_in_suite + (filename,))
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if dirContainsTestSuite(file_execpath):
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subiter = getTests(file_execpath, litConfig,
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testSuiteCache, localConfigCache)
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elif dirContainsTestSuite(file_sourcepath):
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subiter = getTests(file_sourcepath, litConfig,
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testSuiteCache, localConfigCache)
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else:
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# Otherwise, continue loading from inside this test suite.
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subiter = getTestsInSuite(ts, path_in_suite + (filename,),
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litConfig, testSuiteCache,
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localConfigCache)
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for res in subiter:
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yield res
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def runTests(numThreads, litConfig, provider, display):
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# If only using one testing thread, don't use threads at all; this lets us
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# profile, among other things.
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if numThreads == 1:
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t = Tester(litConfig, provider, display)
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t.run()
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return
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# Otherwise spin up the testing threads and wait for them to finish.
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testers = [Tester(litConfig, provider, display)
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for i in range(numThreads)]
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for t in testers:
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t.start()
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try:
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for t in testers:
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t.join()
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except KeyboardInterrupt:
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sys.exit(2)
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def main():
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global options
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from optparse import OptionParser, OptionGroup
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parser = OptionParser("usage: %prog [options] {file-or-path}")
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parser.add_option("-j", "--threads", dest="numThreads", metavar="N",
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help="Number of testing threads",
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type=int, action="store", default=None)
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parser.add_option("", "--config-prefix", dest="configPrefix",
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metavar="NAME", help="Prefix for 'lit' config files",
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action="store", default=None)
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group = OptionGroup(parser, "Output Format")
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# FIXME: I find these names very confusing, although I like the
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# functionality.
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group.add_option("-q", "--quiet", dest="quiet",
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help="Suppress no error output",
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action="store_true", default=False)
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group.add_option("-s", "--succinct", dest="succinct",
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help="Reduce amount of output",
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action="store_true", default=False)
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group.add_option("-v", "--verbose", dest="showOutput",
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help="Show all test output",
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action="store_true", default=False)
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group.add_option("", "--no-progress-bar", dest="useProgressBar",
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help="Do not use curses based progress bar",
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action="store_false", default=True)
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parser.add_option_group(group)
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group = OptionGroup(parser, "Test Execution")
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group.add_option("", "--path", dest="path",
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help="Additional paths to add to testing environment",
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action="append", type=str, default=[])
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group.add_option("", "--vg", dest="useValgrind",
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help="Run tests under valgrind",
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action="store_true", default=False)
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group.add_option("", "--vg-arg", dest="valgrindArgs", metavar="ARG",
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help="Specify an extra argument for valgrind",
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type=str, action="append", default=[])
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group.add_option("", "--time-tests", dest="timeTests",
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help="Track elapsed wall time for each test",
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action="store_true", default=False)
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group.add_option("", "--no-execute", dest="noExecute",
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help="Don't execute any tests (assume PASS)",
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action="store_true", default=False)
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parser.add_option_group(group)
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group = OptionGroup(parser, "Test Selection")
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group.add_option("", "--max-tests", dest="maxTests", metavar="N",
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help="Maximum number of tests to run",
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action="store", type=int, default=None)
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group.add_option("", "--max-time", dest="maxTime", metavar="N",
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help="Maximum time to spend testing (in seconds)",
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action="store", type=float, default=None)
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group.add_option("", "--shuffle", dest="shuffle",
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help="Run tests in random order",
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action="store_true", default=False)
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parser.add_option_group(group)
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group = OptionGroup(parser, "Debug and Experimental Options")
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group.add_option("", "--debug", dest="debug",
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help="Enable debugging (for 'lit' development)",
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action="store_true", default=False)
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group.add_option("", "--show-suites", dest="showSuites",
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help="Show discovered test suites",
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action="store_true", default=False)
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group.add_option("", "--no-tcl-as-sh", dest="useTclAsSh",
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help="Don't run Tcl scripts using 'sh'",
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action="store_false", default=True)
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parser.add_option_group(group)
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(opts, args) = parser.parse_args()
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if not args:
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parser.error('No inputs specified')
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if opts.configPrefix is not None:
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global gConfigName, gSiteConfigName
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gConfigName = '%s.cfg' % opts.configPrefix
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gSiteConfigName = '%s.site.cfg' % opts.configPrefix
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if opts.numThreads is None:
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opts.numThreads = Util.detectCPUs()
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inputs = args
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# Create the global config object.
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litConfig = LitConfig.LitConfig(progname = os.path.basename(sys.argv[0]),
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path = opts.path,
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quiet = opts.quiet,
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useValgrind = opts.useValgrind,
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valgrindArgs = opts.valgrindArgs,
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useTclAsSh = opts.useTclAsSh,
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noExecute = opts.noExecute,
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debug = opts.debug,
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isWindows = (platform.system()=='Windows'))
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# Load the tests from the inputs.
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tests = []
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testSuiteCache = {}
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localConfigCache = {}
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for input in inputs:
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prev = len(tests)
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tests.extend(getTests(input, litConfig,
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testSuiteCache, localConfigCache))
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if prev == len(tests):
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litConfig.warning('input %r contained no tests' % input)
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# If there were any errors during test discovery, exit now.
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if litConfig.numErrors:
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print >>sys.stderr, '%d errors, exiting.' % litConfig.numErrors
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sys.exit(2)
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if opts.showSuites:
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suitesAndTests = dict([(ts,[])
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for ts,_ in testSuiteCache.values()
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if ts])
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for t in tests:
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suitesAndTests[t.suite].append(t)
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print '-- Test Suites --'
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suitesAndTests = suitesAndTests.items()
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suitesAndTests.sort(key = lambda (ts,_): ts.name)
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for ts,tests in suitesAndTests:
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print ' %s - %d tests' %(ts.name, len(tests))
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print ' Source Root: %s' % ts.source_root
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print ' Exec Root : %s' % ts.exec_root
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# Select and order the tests.
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numTotalTests = len(tests)
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if opts.shuffle:
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random.shuffle(tests)
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else:
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tests.sort(key = lambda t: t.getFullName())
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if opts.maxTests is not None:
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tests = tests[:opts.maxTests]
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extra = ''
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if len(tests) != numTotalTests:
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extra = ' of %d' % numTotalTests
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header = '-- Testing: %d%s tests, %d threads --'%(len(tests),extra,
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opts.numThreads)
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progressBar = None
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if not opts.quiet:
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if opts.succinct and opts.useProgressBar:
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try:
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tc = ProgressBar.TerminalController()
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progressBar = ProgressBar.ProgressBar(tc, header)
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except ValueError:
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print header
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progressBar = ProgressBar.SimpleProgressBar('Testing: ')
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else:
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print header
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# Don't create more threads than tests.
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opts.numThreads = min(len(tests), opts.numThreads)
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startTime = time.time()
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display = TestingProgressDisplay(opts, len(tests), progressBar)
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provider = TestProvider(tests, opts.maxTime)
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runTests(opts.numThreads, litConfig, provider, display)
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display.finish()
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if not opts.quiet:
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print 'Testing Time: %.2fs'%(time.time() - startTime)
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# Update results for any tests which weren't run.
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for t in tests:
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if t.result is None:
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t.setResult(Test.UNRESOLVED, '', 0.0)
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# List test results organized by kind.
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hasFailures = False
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byCode = {}
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for t in tests:
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if t.result not in byCode:
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byCode[t.result] = []
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byCode[t.result].append(t)
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if t.result.isFailure:
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hasFailures = True
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# FIXME: Show unresolved and (optionally) unsupported tests.
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for title,code in (('Unexpected Passing Tests', Test.XPASS),
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('Failing Tests', Test.FAIL)):
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elts = byCode.get(code)
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if not elts:
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continue
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print '*'*20
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print '%s (%d):' % (title, len(elts))
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for t in elts:
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print ' %s' % t.getFullName()
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print
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if opts.timeTests:
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byTime = list(tests)
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byTime.sort(key = lambda t: t.elapsed)
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if byTime:
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Util.printHistogram([(t.getFullName(), t.elapsed) for t in byTime],
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title='Tests')
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for name,code in (('Expected Passes ', Test.PASS),
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('Expected Failures ', Test.XFAIL),
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('Unsupported Tests ', Test.UNSUPPORTED),
|
|
('Unresolved Tests ', Test.UNRESOLVED),
|
|
('Unexpected Passes ', Test.XPASS),
|
|
('Unexpected Failures', Test.FAIL),):
|
|
if opts.quiet and not code.isFailure:
|
|
continue
|
|
N = len(byCode.get(code,[]))
|
|
if N:
|
|
print ' %s: %d' % (name,N)
|
|
|
|
# If we encountered any additional errors, exit abnormally.
|
|
if litConfig.numErrors:
|
|
print >>sys.stderr, '\n%d error(s), exiting.' % litConfig.numErrors
|
|
sys.exit(2)
|
|
|
|
# Warn about warnings.
|
|
if litConfig.numWarnings:
|
|
print >>sys.stderr, '\n%d warning(s) in tests.' % litConfig.numWarnings
|
|
|
|
if hasFailures:
|
|
sys.exit(1)
|
|
sys.exit(0)
|
|
|
|
if __name__=='__main__':
|
|
# Bump the GIL check interval, its more important to get any one thread to a
|
|
# blocking operation (hopefully exec) than to try and unblock other threads.
|
|
import sys
|
|
sys.setcheckinterval(1000)
|
|
main()
|