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|
# frozen_string_literal: false
require 'test/unit'
require '-test-/debug'
class SampleClassForTestProfileFrames
class << self
attr_accessor :sample4
end
self.sample4 = Module.new do
def self.corge(block)
Sample2.new.baz(block)
end
end
class Sample2
def baz(block)
instance_eval "def zab(block) block.call end"
[self, zab(block)]
end
end
module Sample3
class << self
def qux(block)
SampleClassForTestProfileFrames.sample4.corge(block)
end
end
end
def self.bar(block)
Sample3.qux(block)
end
def foo(block)
self.class.bar(block)
end
end
class TestProfileFrames < Test::Unit::TestCase
def test_profile_frames
obj, frames = Fiber.new{
Fiber.yield SampleClassForTestProfileFrames.new.foo(lambda{ Bug::Debug.profile_frames(0, 10) })
}.resume
labels = [
nil,
"test_profile_frames",
"zab",
"baz",
"corge",
"qux",
"bar",
"foo",
"test_profile_frames",
]
base_labels = [
nil,
"test_profile_frames",
"zab",
"baz",
"corge",
"qux",
"bar",
"foo",
"test_profile_frames",
]
full_labels = [
"Bug::Debug.profile_frames",
"TestProfileFrames#test_profile_frames",
"#{obj.inspect}.zab",
"SampleClassForTestProfileFrames::Sample2#baz",
"#{SampleClassForTestProfileFrames.sample4.inspect}.corge",
"SampleClassForTestProfileFrames::Sample3.qux",
"SampleClassForTestProfileFrames.bar",
"SampleClassForTestProfileFrames#foo",
"TestProfileFrames#test_profile_frames",
]
classes = [
Bug::Debug,
TestProfileFrames,
obj,
SampleClassForTestProfileFrames::Sample2,
SampleClassForTestProfileFrames.sample4,
SampleClassForTestProfileFrames::Sample3,
SampleClassForTestProfileFrames, # singleton method
SampleClassForTestProfileFrames,
TestProfileFrames,
]
singleton_method_p = [
true, false, true, false, true, true, true, false, false, false,
]
method_names = [
"profile_frames",
"test_profile_frames",
"zab",
"baz",
"corge",
"qux",
"bar",
"foo",
"test_profile_frames",
]
qualified_method_names = [
"Bug::Debug.profile_frames",
"TestProfileFrames#test_profile_frames",
"#{obj.inspect}.zab",
"SampleClassForTestProfileFrames::Sample2#baz",
"#{SampleClassForTestProfileFrames.sample4.inspect}.corge",
"SampleClassForTestProfileFrames::Sample3.qux",
"SampleClassForTestProfileFrames.bar",
"SampleClassForTestProfileFrames#foo",
"TestProfileFrames#test_profile_frames",
]
paths = [ nil, file=__FILE__, "(eval)", file, file, file, file, file, file, nil ]
absolute_paths = [ "<cfunc>", file, nil, file, file, file, file, file, file, nil ]
assert_equal(labels.size, frames.size)
frames.each.with_index{|(path, absolute_path, label, base_label, full_label, first_lineno,
classpath, singleton_p, method_name, qualified_method_name), i|
err_msg = "#{i}th frame"
assert_equal(paths[i], path, err_msg)
assert_equal(absolute_paths[i], absolute_path, err_msg)
assert_equal(labels[i], label, err_msg)
assert_equal(base_labels[i], base_label, err_msg)
assert_equal(singleton_method_p[i], singleton_p, err_msg)
assert_equal(method_names[i], method_name, err_msg)
assert_equal(qualified_method_names[i], qualified_method_name, err_msg)
assert_equal(full_labels[i], full_label, err_msg)
assert_match(classes[i].inspect, classpath, err_msg)
if label == method_name
c = classes[i]
m = singleton_p ? c.method(method_name) : c.instance_method(method_name)
assert_equal(m.source_location[1], first_lineno, err_msg)
end
}
end
def test_matches_backtrace_locations_main_thread
assert_equal(Thread.current, Thread.main)
# Keep these in the same line, so the backtraces match exactly
backtrace_locations, profile_frames = [Thread.current.backtrace_locations, Bug::Debug.profile_frames(0, 100)]
assert_equal(backtrace_locations.size, profile_frames.size)
# The first entries are not going to match, since one is #backtrace_locations and the other #profile_frames
backtrace_locations.shift
profile_frames.shift
# The rest of the stack is expected to look the same...
backtrace_locations.zip(profile_frames).each.with_index do |(location, (path, absolute_path, _, base_label, _, _, _, _, _, _, lineno)), i|
next if absolute_path == "<cfunc>" # ...except for cfunc frames
err_msg = "#{i}th frame"
assert_equal(location.absolute_path, absolute_path, err_msg)
assert_equal(location.base_label, base_label, err_msg)
assert_equal(location.lineno, lineno, err_msg)
assert_equal(location.path, path, err_msg)
end
end
def test_ifunc_frame
bug11851 = '[ruby-core:72409] [Bug #11851]'
assert_ruby_status([], <<~'end;', bug11851) # do
require '-test-/debug'
class A
include Bug::Debug
def x
profile_frames(0, 10)
end
end
def a
[A.new].each(&:x)
end
a
end;
end
end
|
