teak-llvm/lldb/packages/Python/lldbsuite/test/lang/objc/foundation/TestObjCMethods2.py

"""
Test more expression command sequences with objective-c.
"""

from __future__ import print_function


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


@skipUnlessDarwin
class FoundationTestCase2(TestBase):

    mydir = TestBase.compute_mydir(__file__)

    def setUp(self):
        # Call super's setUp().
        TestBase.setUp(self)
        # Find the line numbers to break at.
        self.lines = []
        self.lines.append(
            line_number(
                'main.m',
                '// Break here for selector: tests'))
        self.lines.append(
            line_number(
                'main.m',
                '// Break here for NSArray tests'))
        self.lines.append(
            line_number(
                'main.m',
                '// Break here for NSString tests'))
        self.lines.append(
            line_number(
                'main.m',
                '// Break here for description test'))
        self.lines.append(
            line_number(
                'main.m',
                '// Set break point at this line'))

    def test_more_expr_commands(self):
        """More expression commands for objective-c."""
        self.build()
        exe = self.getBuildArtifact("a.out")
        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)

        # Create a bunch of breakpoints.
        for line in self.lines:
            lldbutil.run_break_set_by_file_and_line(
                self, "main.m", line, num_expected_locations=1, loc_exact=True)

        self.runCmd("run", RUN_SUCCEEDED)

        # Test_Selector:
        self.runCmd("thread backtrace")
        self.expect("expression (char *)sel_getName(sel)",
                    substrs=["(char *)",
                             "length"])

        self.runCmd("process continue")

        # Test_NSArray:
        self.runCmd("thread backtrace")
        self.runCmd("process continue")

        # Test_NSString:
        self.runCmd("thread backtrace")
        self.runCmd("process continue")

        # Test_MyString:
        self.runCmd("thread backtrace")
        self.expect("expression (char *)sel_getName(_cmd)",
                    substrs=["(char *)",
                             "description"])

        self.runCmd("process continue")

    def test_NSArray_expr_commands(self):
        """Test expression commands for NSArray."""
        self.build()
        exe = self.getBuildArtifact("a.out")
        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)

        # Break inside Test_NSArray:
        line = self.lines[1]
        lldbutil.run_break_set_by_file_and_line(
            self, "main.m", line, num_expected_locations=1, loc_exact=True)

        self.runCmd("run", RUN_SUCCEEDED)

        # Test_NSArray:
        self.runCmd("thread backtrace")
        self.expect("expression (int)[nil_mutable_array count]",
                    patterns=["\(int\) \$.* = 0"])
        self.expect("expression (int)[array1 count]",
                    patterns=["\(int\) \$.* = 3"])
        self.expect("expression (int)[array2 count]",
                    patterns=["\(int\) \$.* = 3"])
        self.expect("expression (int)array1.count",
                    patterns=["\(int\) \$.* = 3"])
        self.expect("expression (int)array2.count",
                    patterns=["\(int\) \$.* = 3"])
        self.runCmd("process continue")

    def test_NSString_expr_commands(self):
        """Test expression commands for NSString."""
        self.build()
        exe = self.getBuildArtifact("a.out")
        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)

        # Break inside Test_NSString:
        line = self.lines[2]
        lldbutil.run_break_set_by_file_and_line(
            self, "main.m", line, num_expected_locations=1, loc_exact=True)

        self.runCmd("run", RUN_SUCCEEDED)

        # Test_NSString:
        self.runCmd("thread backtrace")
        self.expect("expression (int)[str length]",
                    patterns=["\(int\) \$.* ="])
        self.expect("expression (int)[str_id length]",
                    patterns=["\(int\) \$.* ="])
        self.expect("expression (id)[str description]",
                    patterns=["\(id\) \$.* = 0x"])
        self.expect("expression (id)[str_id description]",
                    patterns=["\(id\) \$.* = 0x"])
        self.expect("expression str.length")
        self.expect('expression str = @"new"')
        self.runCmd("image lookup -t NSString")
        self.expect('expression str = (id)[NSString stringWithCString: "new"]')
        self.runCmd("process continue")

    @expectedFailureAll(archs=["i[3-6]86"], bugnumber="<rdar://problem/28814052>")
    def test_MyString_dump_with_runtime(self):
        """Test dump of a known Objective-C object by dereferencing it."""
        self.build()
        exe = self.getBuildArtifact("a.out")
        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)

        line = self.lines[4]

        lldbutil.run_break_set_by_file_and_line(
            self, "main.m", line, num_expected_locations=1, loc_exact=True)

        self.runCmd("run", RUN_SUCCEEDED)

        self.expect(
            "expression --show-types -- *my",
            patterns=[
                "\(MyString\) \$.* = ",
                "\(MyBase\)"])
        self.runCmd("process continue")

    @expectedFailureAll(archs=["i[3-6]86"], bugnumber="<rdar://problem/28814052>")
    def test_runtime_types(self):
        """Test commands that require runtime types"""
        self.build()
        exe = self.getBuildArtifact("a.out")
        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)

        # Break inside Test_NSString:
        line = self.lines[2]
        lldbutil.run_break_set_by_source_regexp(
            self, "NSString tests")

        self.runCmd("run", RUN_SUCCEEDED)

        # Test_NSString:
        self.runCmd("thread backtrace")
        self.expect("expression [str length]",
                    patterns=["\(NSUInteger\) \$.* ="])
        self.expect("expression str.length")
        self.expect('expression str = [NSString stringWithCString: "new"]')
        self.expect(
            'po [NSError errorWithDomain:@"Hello" code:35 userInfo:@{@"NSDescription" : @"be completed."}]',
            substrs=[
                "Error Domain=Hello",
                "Code=35",
                "be completed."])
        self.runCmd("process continue")

    @expectedFailureAll(archs=["i[3-6]86"], bugnumber="<rdar://problem/28814052>")
    def test_NSError_p(self):
        """Test that p of the result of an unknown method does require a cast."""
        self.build()
        exe = self.getBuildArtifact("a.out")
        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)

        line = self.lines[4]

        lldbutil.run_break_set_by_file_and_line(
            self, "main.m", line, num_expected_locations=1, loc_exact=True)

        self.runCmd("run", RUN_SUCCEEDED)

        self.expect("p [NSError thisMethodIsntImplemented:0]", error=True, patterns=[
                    "no known method", "cast the message send to the method's return type"])
        self.runCmd("process continue")