"""
Test lldb data formatter subsystem.
"""

from __future__ import print_function


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


class PrintObjectArrayTestCase(TestBase):

    mydir = TestBase.compute_mydir(__file__)

    @skipUnlessDarwin
    def test_print_array(self):
        """Test that expr -O -Z works"""
        self.build()
        self.printarray_data_formatter_commands()

    def setUp(self):
        # Call super's setUp().
        TestBase.setUp(self)
        # Find the line number to break at.
        self.line = line_number('main.mm', 'break here')

    def printarray_data_formatter_commands(self):
        """Test that expr -O -Z works"""
        self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)

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

        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 synth clear', check=False)

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

        self.expect(
            'expr --element-count 3 --object-description -- objects',
            substrs=[
                '3735928559',
                '4276993775',
                '3203398366',
                'Hello',
                'World',
                'Two =',
                '1 ='])
        self.expect(
            'poarray 3 objects',
            substrs=[
                '3735928559',
                '4276993775',
                '3203398366',
                'Hello',
                'World',
                'Two =',
                '1 ='])
        self.expect(
            'expr --element-count 3 --object-description --description-verbosity=full -- objects',
            substrs=[
                '[0] =',
                '3735928559',
                '4276993775',
                '3203398366',
                '[1] =',
                'Hello',
                'World',
                '[2] =',
                'Two =',
                '1 ='])
        self.expect(
            'parray 3 objects',
            substrs=[
                '[0] = 0x',
                '[1] = 0x',
                '[2] = 0x'])
        self.expect(
            'expr --element-count 3 -d run -- objects',
            substrs=[
                '3 elements',
                '2 elements',
                '2 key/value pairs'])
        self.expect(
            'expr --element-count 3 -d run --ptr-depth=1 -- objects',
            substrs=[
                '3 elements',
                '2 elements',
                '2 key/value pairs',
                '3735928559',
                '4276993775',
                '3203398366',
                '"Hello"',
                '"World"'])
