# coding=utf8
"""
Test that the expression parser returns proper Unicode strings.
"""


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

# this test case fails because of rdar://12991846
# the expression parser does not deal correctly with Unicode expressions
# e.g.
# (lldb) expr L"Hello"
# (const wchar_t [6]) $0 = {
#  [0] = \0\0\0\0
#  [1] = \0\0\0\0
#  [2] = \0\0\0\0
#  [3] = \0\0\0\0
#  [4] = H\0\0\0
#  [5] = e\0\0\0
# }


class UnicodeLiteralsTestCase(TestBase):
    def test_expr1(self):
        """Test that the expression parser returns proper Unicode strings."""
        self.rdar12991846(expr=1)

    def test_expr2(self):
        """Test that the expression parser returns proper Unicode strings."""
        self.rdar12991846(expr=2)

    def test_expr3(self):
        """Test that the expression parser returns proper Unicode strings."""
        self.rdar12991846(expr=3)

    def rdar12991846(self, expr=None):
        """Test that the expression parser returns proper Unicode strings."""
        if self.getArchitecture() in ["i386"]:
            self.skipTest("Skipping because this test is known to crash on i386")

        self.build()
        lldbutil.run_to_source_breakpoint(
            self, "// Set break point at this line", lldb.SBFileSpec("main.cpp")
        )

        if expr == 1:
            self.expect('expression L"hello"', substrs=["hello"])

        if expr == 2:
            self.expect('expression u"hello"', substrs=["hello"])

        if expr == 3:
            self.expect('expression U"hello"', substrs=["hello"])