lldb/test/API/lang/cpp/stl/TestSTL.py

"""
Test some expressions involving STL data types.
"""


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


class STLTestCase(TestBase):
    @expectedFailureAll(bugnumber="llvm.org/PR36713")
    def test(self):
        """Test some expressions involving STL data types."""
        self.build()
        lldbutil.run_to_source_breakpoint(
            self, "// Set break point at this line", lldb.SBFileSpec("main.cpp")
        )

        # Now try some expressions....

        self.runCmd(
            'expr for (int i = 0; i < hello_world.length(); ++i) { (void)printf("%c\\n", hello_world[i]); }'
        )

        self.expect("expr associative_array.size()", substrs=[" = 3"])
        self.expect("expr associative_array.count(hello_world)", substrs=[" = 1"])
        self.expect("expr associative_array[hello_world]", substrs=[" = 1"])
        self.expect('expr associative_array["hello"]', substrs=[" = 2"])

    @expectedFailureAll(
        compiler="icc",
        bugnumber="ICC (13.1, 14-beta) do not emit DW_TAG_template_type_parameter.",
    )
    @add_test_categories(["pyapi"])
    def test_SBType_template_aspects(self):
        """Test APIs for getting template arguments from an SBType."""
        self.build()
        (_, _, thread, _) = lldbutil.run_to_source_breakpoint(
            self, "// Set break point at this line", lldb.SBFileSpec("main.cpp")
        )
        frame0 = thread.GetFrameAtIndex(0)

        # Get the type for variable 'associative_array'.
        associative_array = frame0.FindVariable("associative_array")
        self.DebugSBValue(associative_array)
        self.assertTrue(associative_array, VALID_VARIABLE)
        map_type = associative_array.GetType()
        self.DebugSBType(map_type)
        self.assertTrue(map_type, VALID_TYPE)
        num_template_args = map_type.GetNumberOfTemplateArguments()
        self.assertGreater(num_template_args, 0)

        # We expect the template arguments to contain at least 'string' and
        # 'int'.
        expected_types = {"string": False, "int": False}
        for i in range(num_template_args):
            t = map_type.GetTemplateArgumentType(i)
            self.DebugSBType(t)
            self.assertTrue(t, VALID_TYPE)
            name = t.GetName()
            if "string" in name:
                expected_types["string"] = True
            elif "int" == name:
                expected_types["int"] = True

        # Check that both entries of the dictionary have 'True' as the value.
        self.assertTrue(all(expected_types.values()))