from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil

USE_LIBSTDCPP = "USE_LIBSTDCPP"
USE_LIBCPP = "USE_LIBCPP"

class GenericUnorderedDataFormatterTestCase(TestBase):

    def setUp(self):
        TestBase.setUp(self)
        self.namespace = 'std'


    def do_test_with_run_command(self, stdlib_type):
        self.build(dictionary={stdlib_type: "1"})
        self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)

        lldbutil.run_break_set_by_source_regexp(
            self, "Set break point at this line.")

        self.runCmd("run", RUN_SUCCEEDED)

        # The stop reason of the thread should be breakpoint.
        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
                    substrs=['stopped',
                             'stop reason = breakpoint'])

        # This is the function to remove the custom formats in order to have a
        # clean slate for the next test case.
        def cleanup():
            self.runCmd('type format clear', check=False)
            self.runCmd('type summary clear', check=False)
            self.runCmd('type filter clear', check=False)
            self.runCmd('type synth clear', check=False)
            self.runCmd(
                "settings set target.max-children-count 256",
                check=False)
            self.runCmd(
                'settings set auto-one-line-summaries true',
                check=False)

        # Execute the cleanup function during test case tear down.
        self.addTearDownHook(cleanup)

        ns = self.namespace

        # We check here that the map shows 0 children even with corrupt data.
        self.look_for_content_and_continue(
            "corrupt_map", ['%s::unordered_map' %
                    ns, 'size=0 {}'])

        # Ensure key/value children, not wrapped in a layer.
        # This regex depends on auto-one-line-summaries.
        self.runCmd('settings set auto-one-line-summaries false')
        children_are_key_value = r'\[0\] = \{\s*first = '

        self.look_for_content_and_continue(
            "map", ['%s::unordered_map' % ns,
                    children_are_key_value,
                    'size=5 {', 'hello', 'world', 'this', 'is', 'me'])

        self.look_for_content_and_continue(
            "mmap", ['%s::unordered_multimap' % ns,
                     children_are_key_value,
                     'size=6 {', 'first = 3', 'second = "this"',
                     'first = 2', 'second = "hello"'])

        self.look_for_content_and_continue(
            "iset", ['%s::unordered_set' %
                     ns, 'size=5 {', '\[\d\] = 5', '\[\d\] = 3', '\[\d\] = 2'])

        self.look_for_content_and_continue(
            "sset", ['%s::unordered_set' % ns, 'size=5 {', '\[\d\] = "is"', '\[\d\] = "world"',
                     '\[\d\] = "hello"'])

        self.look_for_content_and_continue(
            "imset", ['%s::unordered_multiset' % ns, 'size=6 {', '(\[\d\] = 3(\\n|.)+){3}',
                      '\[\d\] = 2', '\[\d\] = 1'])

        self.look_for_content_and_continue(
            "smset", ['%s::unordered_multiset' % ns, 'size=5 {', '(\[\d\] = "is"(\\n|.)+){2}',
                      '(\[\d\] = "world"(\\n|.)+){2}'])

    def look_for_content_and_continue(self, var_name, patterns):
        self.expect(("frame variable %s" % var_name), patterns=patterns)
        self.expect(("frame variable %s" % var_name), patterns=patterns)
        self.runCmd("continue")

    @add_test_categories(["libstdcxx"])
    def test_with_run_command_libstdcpp(self):
        self.do_test_with_run_command(USE_LIBSTDCPP)

    @add_test_categories(["libc++"])
    def test_with_run_command_libcpp(self):
        self.do_test_with_run_command(USE_LIBCPP)
