"""
Test lldb data formatter subsystem.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class LibcxxVectorDataFormatterTestCase(TestBase):
def check_numbers(self, var_name):
self.expect(
"frame variable " + var_name,
substrs=[
var_name + " = size=7",
"[0] = 1",
"[1] = 12",
"[2] = 123",
"[3] = 1234",
"[4] = 12345",
"[5] = 123456",
"[6] = 1234567",
"}",
],
)
self.expect_expr(
var_name,
result_summary="size=7",
result_children=[
ValueCheck(value="1"),
ValueCheck(value="12"),
ValueCheck(value="123"),
ValueCheck(value="1234"),
ValueCheck(value="12345"),
ValueCheck(value="123456"),
ValueCheck(value="1234567"),
],
)
# check access-by-index
self.expect("frame variable " + var_name + "[0]", substrs=["1"])
self.expect("frame variable " + var_name + "[1]", substrs=["12"])
self.expect("frame variable " + var_name + "[2]", substrs=["123"])
self.expect("frame variable " + var_name + "[3]", substrs=["1234"])
@add_test_categories(["libc++"])
def test_with_run_command(self):
"""Test that that file and class static variables display correctly."""
self.build()
(self.target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
self, "break here", lldb.SBFileSpec("main.cpp", False)
)
# 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 filter clear", check=False)
self.runCmd("type synth clear", check=False)
self.runCmd("settings set target.max-children-count 256", check=False)
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
# empty vectors (and storage pointers SHOULD BOTH BE NULL..)
self.expect("frame variable numbers", substrs=["numbers = size=0"])
lldbutil.continue_to_breakpoint(process, bkpt)
# first value added
self.expect(
"frame variable numbers", substrs=["numbers = size=1", "[0] = 1", "}"]
)
# add some more data
lldbutil.continue_to_breakpoint(process, bkpt)
self.expect(
"frame variable numbers",
substrs=[
"numbers = size=4",
"[0] = 1",
"[1] = 12",
"[2] = 123",
"[3] = 1234",
"}",
],
)
self.expect(
"expression numbers",
substrs=[
"$",
"size=4",
"[0] = 1",
"[1] = 12",
"[2] = 123",
"[3] = 1234",
"}",
],
)
# check access to synthetic children
self.runCmd(
'type summary add --summary-string "item 0 is ${var[0]}" std::int_vect int_vect'
)
self.expect("frame variable numbers", substrs=["item 0 is 1"])
self.runCmd(
'type summary add --summary-string "item 0 is ${svar[0]}" std::int_vect int_vect'
)
self.expect("frame variable numbers", substrs=["item 0 is 1"])
# move on with synths
self.runCmd("type summary delete std::int_vect")
self.runCmd("type summary delete int_vect")
# add some more data
lldbutil.continue_to_breakpoint(process, bkpt)
self.check_numbers("numbers")
# clear out the vector and see that we do the right thing once again
lldbutil.continue_to_breakpoint(process, bkpt)
self.expect("frame variable numbers", substrs=["numbers = size=0"])
lldbutil.continue_to_breakpoint(process, bkpt)
# first value added
self.expect(
"frame variable numbers", substrs=["numbers = size=1", "[0] = 7", "}"]
)
# check if we can display strings
self.expect("frame variable strings", substrs=["goofy", "is", "smart"])
self.expect("expression strings", substrs=["goofy", "is", "smart"])
# test summaries based on synthetic children
self.runCmd(
'type summary add std::string_vect string_vect --summary-string "vector has ${svar%#} items" -e'
)
self.expect(
"frame variable strings",
substrs=["vector has 3 items", "goofy", "is", "smart"],
)
self.expect(
"expression strings", substrs=["vector has 3 items", "goofy", "is", "smart"]
)
lldbutil.continue_to_breakpoint(process, bkpt)
self.expect("frame variable strings", substrs=["vector has 4 items"])
# check access-by-index
self.expect("frame variable strings[0]", substrs=["goofy"])
self.expect("frame variable strings[1]", substrs=["is"])
lldbutil.continue_to_breakpoint(process, bkpt)
self.expect("frame variable strings", substrs=["vector has 0 items"])
@add_test_categories(["libc++"])
def test_ref_and_ptr(self):
"""Test that that file and class static variables display correctly."""
self.build()
(self.target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
self, "Stop here to check by ref", lldb.SBFileSpec("main.cpp", False)
)
# The reference should display the same was as the value did
self.check_numbers("ref")
# The pointer should just show the right number of elements:
self.expect("frame variable ptr", substrs=["ptr =", " size=7"])
self.expect("expression ptr", substrs=["$", "size=7"])
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