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     27 
     28 
     29 import os
     30 import re
     31 
     32 from testrunner.local import testsuite
     33 from testrunner.local import utils
     34 from testrunner.objects import testcase
     35 
     36 
     37 class PreparserTestSuite(testsuite.TestSuite):
     38   def __init__(self, name, root):
     39     super(PreparserTestSuite, self).__init__(name, root)
     40 
     41   def shell(self):
     42     return "d8"
     43 
     44   def _GetExpectations(self):
     45     expects_file = os.path.join(self.root, "preparser.expectation")
     46     expectations_map = {}
     47     if not os.path.exists(expects_file): return expectations_map
     48     rule_regex = re.compile("^([\w\-]+)(?::([\w\-]+))?(?::(\d+),(\d+))?$")
     49     for line in utils.ReadLinesFrom(expects_file):
     50       rule_match = rule_regex.match(line)
     51       if not rule_match: continue
     52       expects = []
     53       if (rule_match.group(2)):
     54         expects += [rule_match.group(2)]
     55         if (rule_match.group(3)):
     56           expects += [rule_match.group(3), rule_match.group(4)]
     57       expectations_map[rule_match.group(1)] = " ".join(expects)
     58     return expectations_map
     59 
     60   def _ParsePythonTestTemplates(self, result, filename):
     61     pathname = os.path.join(self.root, filename + ".pyt")
     62     def Test(name, source, expectation):
     63       source = source.replace("\n", " ")
     64       testname = os.path.join(filename, name)
     65       flags = ["-e", source]
     66       if expectation:
     67         flags += ["--throws"]
     68       test = testcase.TestCase(self, testname, flags=flags)
     69       result.append(test)
     70     def Template(name, source):
     71       def MkTest(replacement, expectation):
     72         testname = name
     73         testsource = source
     74         for key in replacement.keys():
     75           testname = testname.replace("$" + key, replacement[key]);
     76           testsource = testsource.replace("$" + key, replacement[key]);
     77         Test(testname, testsource, expectation)
     78       return MkTest
     79     execfile(pathname, {"Test": Test, "Template": Template})
     80 
     81   def ListTests(self, context):
     82     expectations = self._GetExpectations()
     83     result = []
     84 
     85     # Find all .js files in this directory.
     86     filenames = [f[:-3] for f in os.listdir(self.root) if f.endswith(".js")]
     87     filenames.sort()
     88     for f in filenames:
     89       throws = expectations.get(f, None)
     90       flags = [f + ".js"]
     91       if throws:
     92         flags += ["--throws"]
     93       test = testcase.TestCase(self, f, flags=flags)
     94       result.append(test)
     95 
     96     # Find all .pyt files in this directory.
     97     filenames = [f[:-4] for f in os.listdir(self.root) if f.endswith(".pyt")]
     98     filenames.sort()
     99     for f in filenames:
    100       self._ParsePythonTestTemplates(result, f)
    101     return result
    102 
    103   def GetFlagsForTestCase(self, testcase, context):
    104     first = testcase.flags[0]
    105     if first != "-e":
    106       testcase.flags[0] = os.path.join(self.root, first)
    107     return testcase.flags
    108 
    109   def GetSourceForTest(self, testcase):
    110     if testcase.flags[0] == "-e":
    111       return testcase.flags[1]
    112     with open(testcase.flags[0]) as f:
    113       return f.read()
    114 
    115   def VariantFlags(self, testcase, default_flags):
    116     return [[]];
    117 
    118 
    119 def GetSuite(name, root):
    120   return PreparserTestSuite(name, root)
    121