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clang-p2996/lldb/test/API/commands/expression/formatters/TestFormatters.py
Jonas Devlieghere 2238dcc393 [NFC][Py Reformat] Reformat python files in lldb 
This is an ongoing series of commits that are reformatting our Python
code. Reformatting is done with `black` (23.1.0).

If you end up having problems merging this commit because you have made
changes to a python file, the best way to handle that is to run `git
checkout --ours <yourfile>` and then reformat it with black.

RFC: https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style

Differential revision: https://reviews.llvm.org/D151460
2023-05-25 12:54:09 -07:00

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"""
Test using LLDB data formatters with frozen objects coming from the expression parser.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class ExprFormattersTestCase(TestBase):
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break for main.cpp.
self.line = line_number("main.cpp", "// Stop here")
@skipIfTargetAndroid() # skipping to avoid crashing the test runner
@expectedFailureAndroid("llvm.org/pr24691") # we hit an assertion in clang
def test(self):
"""Test expr + formatters for good interoperability."""
self.build()
# 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 summary clear", check=False)
self.runCmd("type synthetic clear", check=False)
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
"""Test expr + formatters for good interoperability."""
self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_file_and_line(
self, "main.cpp", self.line, loc_exact=True
)
self.runCmd("run", RUN_SUCCEEDED)
self.runCmd("command script import formatters.py")
self.runCmd("command script import foosynth.py")
if self.TraceOn():
self.runCmd("frame variable foo1 --show-types")
self.runCmd("frame variable foo1.b --show-types")
self.runCmd("frame variable foo1.b.b_ref --show-types")
self.filecheck(
"expression --show-types -- *(new_foo(47))",
__file__,
"-check-prefix=EXPR-TYPES-NEW-FOO",
)
# EXPR-TYPES-NEW-FOO: (foo) ${{.*}} = {
# EXPR-TYPES-NEW-FOO-NEXT: (int) a = 47
# EXPR-TYPES-NEW-FOO-NEXT: (int *) a_ptr = 0x
# EXPR-TYPES-NEW-FOO-NEXT: (bar) b = {
# EXPR-TYPES-NEW-FOO-NEXT: (int) i = 94
# EXPR-TYPES-NEW-FOO-NEXT: (int *) i_ptr = 0x
# EXPR-TYPES-NEW-FOO-NEXT: (baz) b = {
# EXPR-TYPES-NEW-FOO-NEXT: (int) h = 97
# EXPR-TYPES-NEW-FOO-NEXT: (int) k = 99
# EXPR-TYPES-NEW-FOO-NEXT: }
# EXPR-TYPES-NEW-FOO-NEXT: (baz &) b_ref = 0x
# EXPR-TYPES-NEW-FOO-NEXT: }
# EXPR-TYPES-NEW-FOO-NEXT: }
self.runCmd("type summary add -F formatters.foo_SummaryProvider3 foo")
self.filecheck("expression foo1", __file__, "-check-prefix=EXPR-FOO1opts")
# EXPR-FOO1opts: (foo) $
# EXPR-FOO1opts-SAME: a = 12
# EXPR-FOO1opts-SAME: a_ptr = {{[0-9]+}} -> 13
# EXPR-FOO1opts-SAME: i = 24
# EXPR-FOO1opts-SAME: i_ptr = {{[0-9]+}} -> 25
# EXPR-FOO1opts-SAME: b_ref = {{[0-9]+}}
# EXPR-FOO1opts-SAME: h = 27
# EXPR-FOO1opts-SAME: k = 29
# EXPR-FOO1opts-SAME: WITH_OPTS
self.runCmd("type summary delete foo")
self.runCmd("type summary add -F formatters.foo_SummaryProvider foo")
self.expect("expression new_int(12)", substrs=["(int *) $", " = 0x"])
self.runCmd('type summary add -s "${var%pointer} -> ${*var%decimal}" "int *"')
self.expect("expression new_int(12)", substrs=["(int *) $", "= 0x", " -> 12"])
self.expect("expression foo1.a_ptr", substrs=["(int *) $", "= 0x", " -> 13"])
self.filecheck("expression foo1", __file__, "-check-prefix=EXPR-FOO1")
# EXPR-FOO1: (foo) $
# EXPR-FOO1-SAME: a = 12
# EXPR-FOO1-SAME: a_ptr = {{[0-9]+}} -> 13
# EXPR-FOO1-SAME: i = 24
# EXPR-FOO1-SAME: i_ptr = {{[0-9]+}} -> 25
# EXPR-FOO1-SAME: b_ref = {{[0-9]+}}
# EXPR-FOO1-SAME: h = 27
# EXPR-FOO1-SAME: k = 29
self.filecheck(
"expression --ptr-depth=1 -- new_foo(47)",
__file__,
"-check-prefix=EXPR-PTR-DEPTH1",
)
# EXPR-PTR-DEPTH1: (foo *) $
# EXPR-PTR-DEPTH1-SAME: a = 47
# EXPR-PTR-DEPTH1-SAME: a_ptr = {{[0-9]+}} -> 48
# EXPR-PTR-DEPTH1-SAME: i = 94
# EXPR-PTR-DEPTH1-SAME: i_ptr = {{[0-9]+}} -> 95
self.filecheck("expression foo2", __file__, "-check-prefix=EXPR-FOO2")
# EXPR-FOO2: (foo) $
# EXPR-FOO2-SAME: a = 121
# EXPR-FOO2-SAME: a_ptr = {{[0-9]+}} -> 122
# EXPR-FOO2-SAME: i = 242
# EXPR-FOO2-SAME: i_ptr = {{[0-9]+}} -> 243
# EXPR-FOO2-SAME: h = 245
# EXPR-FOO2-SAME: k = 247
object_name = self.res.GetOutput()
object_name = object_name[7:]
object_name = object_name[0 : object_name.find(" =")]
self.filecheck("frame variable foo2", __file__, "-check-prefix=VAR-FOO2")
# VAR-FOO2: (foo) foo2
# VAR-FOO2-SAME: a = 121
# VAR-FOO2-SAME: a_ptr = {{[0-9]+}} -> 122
# VAR-FOO2-SAME: i = 242
# VAR-FOO2-SAME: i_ptr = {{[0-9]+}} -> 243
# VAR-FOO2-SAME: h = 245
# VAR-FOO2-SAME: k = 247
# The object is the same as foo2, so use the EXPR-FOO2 checks.
self.filecheck(
"expression $" + object_name, __file__, "-check-prefix=EXPR-FOO2"
)
self.runCmd("type summary delete foo")
self.runCmd(
"type synthetic add --python-class foosynth.FooSyntheticProvider foo"
)
self.expect(
"expression --show-types -- $" + object_name,
substrs=["(foo) $", " = {", "(int) *i_ptr = 243"],
)
self.runCmd("n")
self.runCmd("n")
self.runCmd("type synthetic delete foo")
self.runCmd("type summary add -F formatters.foo_SummaryProvider foo")
self.expect(
"expression foo2",
substrs=[
"(foo) $",
"a = 7777",
"a_ptr = ",
" -> 122",
"i = 242",
"i_ptr = ",
" -> 8888",
],
)
self.expect("expression $" + object_name + ".a", substrs=["7777"])
self.expect("expression *$" + object_name + ".b.i_ptr", substrs=["8888"])
self.expect(
"expression $" + object_name,
substrs=[
"(foo) $",
"a = 121",
"a_ptr = ",
" -> 122",
"i = 242",
"i_ptr = ",
" -> 8888",
"h = 245",
"k = 247",
],
)
self.runCmd("type summary delete foo")
self.runCmd(
"type synthetic add --python-class foosynth.FooSyntheticProvider foo"
)
self.expect(
"expression --show-types -- $" + object_name,
substrs=["(foo) $", " = {", "(int) *i_ptr = 8888"],
)
self.runCmd("n")
self.runCmd("type synthetic delete foo")
self.runCmd("type summary add -F formatters.foo_SummaryProvider foo")
self.expect(
"expression $" + object_name,
substrs=[
"(foo) $",
"a = 121",
"a_ptr = ",
" -> 122",
"i = 242",
"i_ptr = ",
" -> 8888",
"k = 247",
],
)
process = self.dbg.GetSelectedTarget().GetProcess()
thread = process.GetThreadAtIndex(0)
frame = thread.GetSelectedFrame()
frozen = frame.EvaluateExpression("$" + object_name + ".a_ptr")
a_data = frozen.GetPointeeData()
error = lldb.SBError()
self.assertEqual(a_data.GetUnsignedInt32(error, 0), 122, "*a_ptr = 122")
ret = line_number("main.cpp", "Done initializing")
self.runCmd("thread until " + str(ret))
self.expect("frame variable numbers", substrs=["1", "2", "3", "4", "5"])
self.expect("expression numbers", substrs=["1", "2", "3", "4", "5"])
frozen = frame.EvaluateExpression("&numbers")
a_data = frozen.GetPointeeData(0, 1)
self.assertEqual(a_data.GetUnsignedInt32(error, 0), 1, "numbers[0] == 1")
self.assertEqual(a_data.GetUnsignedInt32(error, 4), 2, "numbers[1] == 2")
self.assertEqual(a_data.GetUnsignedInt32(error, 8), 3, "numbers[2] == 3")
self.assertEqual(a_data.GetUnsignedInt32(error, 12), 4, "numbers[3] == 4")
self.assertEqual(a_data.GetUnsignedInt32(error, 16), 5, "numbers[4] == 5")
frozen = frame.EvaluateExpression("numbers")
a_data = frozen.GetData()
self.assertEqual(a_data.GetUnsignedInt32(error, 0), 1, "numbers[0] == 1")
self.assertEqual(a_data.GetUnsignedInt32(error, 4), 2, "numbers[1] == 2")
self.assertEqual(a_data.GetUnsignedInt32(error, 8), 3, "numbers[2] == 3")
self.assertEqual(a_data.GetUnsignedInt32(error, 12), 4, "numbers[3] == 4")
self.assertEqual(a_data.GetUnsignedInt32(error, 16), 5, "numbers[4] == 5")
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