def test_infinite_loop_pass_in_function():
code = """\
def foo():
while True:
pass
foo()
"""
expected_report1 = """\
RuntimeError: live coding message limit exceeded
RuntimeError: live coding message limit exceeded"""
expected_report2 = """\
RuntimeError: live coding message limit exceeded
RuntimeError: live coding message limit exceeded"""
tracer = TraceRunner()
tracer.message_limit = 3
report = tracer.trace_code(code)
assert report in (expected_report1, expected_report2)
def test_infinite_loop_before_traced_block():
code = """\
from space_tracer import traced
def foo():
while True:
pass
@traced
def bar(n):
s = 'a'
for i in range(n):
s += 'b'
return s
foo()
print(bar(3))
"""
expected_report = """\
from space_tracer import traced | -------------------------------- |
| Traced blocks were never called. |
| -------------------------------- |"""
tracer = TraceRunner()
tracer.message_limit = 20
with replace_input(code):
report = tracer.trace_command(
['space_tracer', '--traced_file', 'example.py', 'example.py'])
assert report == expected_report
def test_infinite_loop_pass():
code = """\
while True:
pass
"""
expected_report = """\
RuntimeError: live coding message limit exceeded"""
tracer = TraceRunner()
tracer.message_limit = 3
report = tracer.trace_code(code)
assert report in (expected_report + '\n', '\n' + expected_report)
def test_infinite_loop_by_count():
code = """\
n = 0
while True:
n += 1
"""
expected_report = """\
n = 0
| |
n = 1 | n = 2 | RuntimeError: live coding message limit exceeded"""
tracer = TraceRunner()
tracer.message_limit = 8
report = tracer.trace_code(code)
assert report == expected_report
def test_infinite_loop_pass(self):
# SETUP
code = """\
while True:
pass
"""
expected_report = """\
RuntimeError: live coding message limit exceeded """
tracer = TraceRunner()
tracer.message_limit = 3
# EXEC
report = tracer.trace_code(code)
# VERIFY
self.assertReportEqual(expected_report, report)
def test_infinite_loop_by_count(self):
# SETUP
code = """\
n = 0
while True:
n += 1
"""
expected_report = """\
n = 0
| |
n = 1 | n = 2 | RuntimeError: live coding message limit exceeded """
tracer = TraceRunner()
tracer.message_limit = 8
# EXEC
report = tracer.trace_code(code)
# VERIFY
self.assertReportEqual(expected_report, report)
def test_traced_decorator_avoids_message_limit():
code = """\
from space_tracer import traced
def foo(n):
s = 'x'
for i in range(n):
s += 'y'
return s
@traced
def bar(n):
s = 'a'
for i in range(n):
s += 'b'
return s
print(foo(3000))
print(bar(3))
"""
expected_report = """\
@traced |
def bar(n): | n = 3
s = 'a' | s = 'a'
for i in range(n): | i = 0 | i = 1 | i = 2
s += 'b' | s = 'ab' | s = 'abb' | s = 'abbb'
return s | return 'abbb'"""
tracer = TraceRunner()
tracer.message_limit = 20
with replace_input(code):
report = tracer.trace_command(
['space_tracer', '--traced_file', 'example.py', 'example.py'])
assert report == expected_report
