# encoding: utf-8
"""
Test lldb data formatter subsystem.
"""


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

from ObjCDataFormatterTestCase import ObjCDataFormatterTestCase


class ObjCDataFormatterExpr(ObjCDataFormatterTestCase):
    def test_expr_with_run_command(self):
        """Test common cases of expression parser <--> formatters interaction."""
        self.build()
        self.target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
            self, "// Set break point at this line.", lldb.SBFileSpec("main.m", False)
        )

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

        self.runCmd("settings set target.prefer-dynamic-value no-dynamic-values")

        # 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)

        # check that the formatters are able to deal safely and correctly
        # with ValueObjects that the expression parser returns
        self.expect(
            'expression ((id)@"Hello for long enough to avoid short string types")',
            matching=False,
            substrs=["Hello for long enough to avoid short string types"],
        )

        self.expect(
            'expression -d run -- ((id)@"Hello for long enough to avoid short string types")',
            substrs=["Hello for long enough to avoid short string types"],
        )

        self.expect("expr -d run -- label1", substrs=["Process Name"])

        self.expect(
            'expr -d run -- @"Hello for long enough to avoid short string types"',
            substrs=["Hello for long enough to avoid short string types"],
        )

        self.expect(
            'expr -d run --object-description -- @"Hello for long enough to avoid short string types"',
            substrs=["Hello for long enough to avoid short string types"],
        )
        self.expect(
            'expr -d run --object-description -- @"Hello"',
            matching=False,
            substrs=['@"Hello" Hello'],
        )
