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5203 lines (4647 loc) · 184 KB
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# Argument Clinic
# Copyright 2012-2013 by Larry Hastings.
# Licensed to the PSF under a contributor agreement.
from functools import partial
from test import support, test_tools
from test.support import force_not_colorized_test_class
from test.support import os_helper
from test.support.os_helper import TESTFN, unlink, rmtree
from textwrap import dedent
from unittest import TestCase
import difflib
import inspect
import os.path
import re
import sys
import unittest
test_tools.skip_if_missing('clinic')
with test_tools.imports_under_tool('clinic'):
import libclinic
from libclinic import ClinicError, unspecified, NULL, fail
from libclinic.converters import int_converter, str_converter, self_converter
from libclinic.function import (
Module, Class, Function, FunctionKind, Parameter,
permute_optional_groups, permute_right_option_groups,
permute_left_option_groups)
import clinic
from libclinic.clanguage import CLanguage
from libclinic.converter import converters, legacy_converters
from libclinic.return_converters import return_converters, int_return_converter
from libclinic.block_parser import Block, BlockParser
from libclinic.codegen import BlockPrinter, Destination
from libclinic.dsl_parser import DSLParser
from libclinic.cli import parse_file, Clinic
def repeat_fn(*functions):
def wrapper(test):
def wrapped(self):
for fn in functions:
with self.subTest(fn=fn):
test(self, fn)
return wrapped
return wrapper
def _make_clinic(*, filename='clinic_tests', limited_capi=False):
clang = CLanguage(filename)
c = Clinic(clang, filename=filename, limited_capi=limited_capi)
c.block_parser = BlockParser('', clang)
return c
def _expect_failure(tc, parser, code, errmsg, *, filename=None, lineno=None,
strip=True):
"""Helper for the parser tests.
tc: unittest.TestCase; passed self in the wrapper
parser: the clinic parser used for this test case
code: a str with input text (clinic code)
errmsg: the expected error message
filename: str, optional filename
lineno: int, optional line number
"""
code = dedent(code)
if strip:
code = code.strip()
errmsg = re.escape(errmsg)
with tc.assertRaisesRegex(ClinicError, errmsg) as cm:
parser(code)
if filename is not None:
tc.assertEqual(cm.exception.filename, filename)
if lineno is not None:
tc.assertEqual(cm.exception.lineno, lineno)
return cm.exception
def restore_dict(converters, old_converters):
converters.clear()
converters.update(old_converters)
def save_restore_converters(testcase):
testcase.addCleanup(restore_dict, converters,
converters.copy())
testcase.addCleanup(restore_dict, legacy_converters,
legacy_converters.copy())
testcase.addCleanup(restore_dict, return_converters,
return_converters.copy())
class ClinicWholeFileTest(TestCase):
maxDiff = None
def expect_failure(self, raw, errmsg, *, filename=None, lineno=None):
_expect_failure(self, self.clinic.parse, raw, errmsg,
filename=filename, lineno=lineno)
def setUp(self):
save_restore_converters(self)
self.clinic = _make_clinic(filename="test.c")
def test_eol(self):
# regression test:
# clinic's block parser didn't recognize
# the "end line" for the block if it
# didn't end in "\n" (as in, the last)
# byte of the file was '/'.
# so it would spit out an end line for you.
# and since you really already had one,
# the last line of the block got corrupted.
raw = "/*[clinic]\nfoo\n[clinic]*/"
cooked = self.clinic.parse(raw).splitlines()
end_line = cooked[2].rstrip()
# this test is redundant, it's just here explicitly to catch
# the regression test so we don't forget what it looked like
self.assertNotEqual(end_line, "[clinic]*/[clinic]*/")
self.assertEqual(end_line, "[clinic]*/")
def test_mangled_marker_line(self):
raw = """
/*[clinic input]
[clinic start generated code]*/
/*[clinic end generated code: foo]*/
"""
err = (
"Mangled Argument Clinic marker line: "
"'/*[clinic end generated code: foo]*/'"
)
self.expect_failure(raw, err, filename="test.c", lineno=3)
def test_checksum_mismatch(self):
raw = """
/*[clinic input]
[clinic start generated code]*/
/*[clinic end generated code: output=0123456789abcdef input=fedcba9876543210]*/
"""
err = ("Checksum mismatch! "
"Expected '0123456789abcdef', computed 'da39a3ee5e6b4b0d'")
self.expect_failure(raw, err, filename="test.c", lineno=3)
def test_garbage_after_stop_line(self):
raw = """
/*[clinic input]
[clinic start generated code]*/foobarfoobar!
"""
err = "Garbage after stop line: 'foobarfoobar!'"
self.expect_failure(raw, err, filename="test.c", lineno=2)
def test_whitespace_before_stop_line(self):
raw = """
/*[clinic input]
[clinic start generated code]*/
"""
err = (
"Whitespace is not allowed before the stop line: "
"' [clinic start generated code]*/'"
)
self.expect_failure(raw, err, filename="test.c", lineno=2)
def test_parse_with_body_prefix(self):
clang = CLanguage(None)
clang.body_prefix = "//"
clang.start_line = "//[{dsl_name} start]"
clang.stop_line = "//[{dsl_name} stop]"
cl = Clinic(clang, filename="test.c", limited_capi=False)
raw = dedent("""
//[clinic start]
//module test
//[clinic stop]
""").strip()
out = cl.parse(raw)
expected = dedent("""
//[clinic start]
//module test
//
//[clinic stop]
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=65fab8adff58cf08]*/
""").lstrip() # Note, lstrip() because of the newline
self.assertEqual(out, expected)
def test_cpp_monitor_fail_nested_block_comment(self):
raw = """
/* start
/* nested
*/
*/
"""
err = 'Nested block comment!'
self.expect_failure(raw, err, filename="test.c", lineno=2)
def test_cpp_monitor_fail_invalid_format_noarg(self):
raw = """
#if
a()
#endif
"""
err = 'Invalid format for #if line: no argument!'
self.expect_failure(raw, err, filename="test.c", lineno=1)
def test_cpp_monitor_fail_invalid_format_toomanyargs(self):
raw = """
#ifdef A B
a()
#endif
"""
err = 'Invalid format for #ifdef line: should be exactly one argument!'
self.expect_failure(raw, err, filename="test.c", lineno=1)
def test_cpp_monitor_fail_no_matching_if(self):
raw = '#else'
err = '#else without matching #if / #ifdef / #ifndef!'
self.expect_failure(raw, err, filename="test.c", lineno=1)
def test_directive_output_unknown_preset(self):
raw = """
/*[clinic input]
output preset nosuchpreset
[clinic start generated code]*/
"""
err = "Unknown preset 'nosuchpreset'"
self.expect_failure(raw, err)
def test_directive_output_cant_pop(self):
raw = """
/*[clinic input]
output pop
[clinic start generated code]*/
"""
err = "Can't 'output pop', stack is empty"
self.expect_failure(raw, err)
def test_directive_output_print(self):
raw = dedent("""
/*[clinic input]
output print 'I told you once.'
[clinic start generated code]*/
""")
out = self.clinic.parse(raw)
# The generated output will differ for every run, but we can check that
# it starts with the clinic block, we check that it contains all the
# expected fields, and we check that it contains the checksum line.
self.assertStartsWith(out, dedent("""
/*[clinic input]
output print 'I told you once.'
[clinic start generated code]*/
"""))
fields = {
"cpp_endif",
"cpp_if",
"docstring_definition",
"docstring_prototype",
"impl_definition",
"impl_prototype",
"methoddef_define",
"methoddef_ifndef",
"parser_definition",
"parser_prototype",
}
for field in fields:
with self.subTest(field=field):
self.assertIn(field, out)
last_line = out.rstrip().split("\n")[-1]
self.assertStartsWith(last_line, "/*[clinic end generated code: output=")
def test_directive_wrong_arg_number(self):
raw = dedent("""
/*[clinic input]
preserve foo bar baz eggs spam ham mushrooms
[clinic start generated code]*/
""")
err = "takes 1 positional argument but 8 were given"
self.expect_failure(raw, err)
def test_unknown_destination_command(self):
raw = """
/*[clinic input]
destination buffer nosuchcommand
[clinic start generated code]*/
"""
err = "unknown destination command 'nosuchcommand'"
self.expect_failure(raw, err)
def test_no_access_to_members_in_converter_init(self):
raw = """
/*[python input]
class Custom_converter(CConverter):
converter = "some_c_function"
def converter_init(self):
self.function.noaccess
[python start generated code]*/
/*[clinic input]
module test
test.fn
a: Custom
[clinic start generated code]*/
"""
err = (
"accessing self.function inside converter_init is disallowed!"
)
self.expect_failure(raw, err)
def test_clone_mismatch(self):
err = "'kind' of function and cloned function don't match!"
block = """
/*[clinic input]
module m
@classmethod
m.f1
a: object
[clinic start generated code]*/
/*[clinic input]
@staticmethod
m.f2 = m.f1
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=9)
def test_badly_formed_return_annotation(self):
err = "Badly formed annotation for 'm.f': 'Custom'"
block = """
/*[python input]
class Custom_return_converter(CReturnConverter):
def __init__(self):
raise ValueError("abc")
[python start generated code]*/
/*[clinic input]
module m
m.f -> Custom
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=8)
def test_ambiguous_group_and_optional_parameters(self):
err = ("Function 'my_test_func' has an ambiguous group configuration: "
"a call with 2 argument(s) can be parsed in more than one way.")
block = """
/*[clinic input]
my_test_func
[
a: object
b: object
]
c: object = None
d: object = None
/
[clinic start generated code]*/
"""
self.expect_failure(block, err)
def test_star_after_vararg(self):
err = "'my_test_func' uses '*' more than once."
block = """
/*[clinic input]
my_test_func
pos_arg: object
*args: tuple
*
kw_arg: object
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=6)
def test_vararg_after_star(self):
err = "'my_test_func' uses '*' more than once."
block = """
/*[clinic input]
my_test_func
pos_arg: object
*
*args: tuple
kw_arg: object
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=6)
def test_double_star_after_var_keyword(self):
err = "Function 'my_test_func' has an invalid parameter declaration (**kwargs?): '**kwds: dict'"
block = """
/*[clinic input]
my_test_func
pos_arg: object
**kwds: dict
**
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=5)
def test_var_keyword_after_star(self):
err = "Function 'my_test_func' has an invalid parameter declaration: '**'"
block = """
/*[clinic input]
my_test_func
pos_arg: object
**
**kwds: dict
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=5)
def test_module_already_got_one(self):
err = "Already defined module 'm'!"
block = """
/*[clinic input]
module m
module m
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=3)
def test_destination_already_got_one(self):
err = "Destination already exists: 'test'"
block = """
/*[clinic input]
destination test new buffer
destination test new buffer
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=3)
def test_destination_does_not_exist(self):
err = "Destination does not exist: '/dev/null'"
block = """
/*[clinic input]
output everything /dev/null
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=2)
def test_class_already_got_one(self):
err = "Already defined class 'C'!"
block = """
/*[clinic input]
class C "" ""
class C "" ""
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=3)
def test_cant_nest_module_inside_class(self):
err = "Can't nest a module inside a class!"
block = """
/*[clinic input]
class C "" ""
module C.m
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=3)
def test_dest_buffer_not_empty_at_eof(self):
expected_warning = ("Destination buffer 'buffer' not empty at "
"end of file, emptying.")
expected_generated = dedent("""
/*[clinic input]
output everything buffer
fn
a: object
/
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=1c4668687f5fd002]*/
/*[clinic input]
dump buffer
[clinic start generated code]*/
PyDoc_VAR(fn__doc__);
PyDoc_STRVAR(fn__doc__,
"fn($module, a, /)\\n"
"--\\n"
"\\n");
#define FN_METHODDEF \\
{"fn", (PyCFunction)fn, METH_O, fn__doc__},
static PyObject *
fn(PyObject *module, PyObject *a)
/*[clinic end generated code: output=be6798b148ab4e53 input=524ce2e021e4eba6]*/
""")
block = dedent("""
/*[clinic input]
output everything buffer
fn
a: object
/
[clinic start generated code]*/
""")
with support.captured_stdout() as stdout:
generated = self.clinic.parse(block)
self.assertIn(expected_warning, stdout.getvalue())
self.assertEqual(generated, expected_generated)
def test_dest_clear(self):
err = "Can't clear destination 'file': it's not of type 'buffer'"
block = """
/*[clinic input]
destination file clear
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=2)
def test_directive_set_misuse(self):
err = "unknown variable 'ets'"
block = """
/*[clinic input]
set ets tse
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=2)
def test_directive_set_prefix(self):
block = dedent("""
/*[clinic input]
set line_prefix '// '
output everything suppress
output docstring_prototype buffer
fn
a: object
/
[clinic start generated code]*/
/* We need to dump the buffer.
* If not, Argument Clinic will emit a warning */
/*[clinic input]
dump buffer
[clinic start generated code]*/
""")
generated = self.clinic.parse(block)
expected_docstring_prototype = "// PyDoc_VAR(fn__doc__);"
self.assertIn(expected_docstring_prototype, generated)
def test_directive_set_suffix(self):
block = dedent("""
/*[clinic input]
set line_suffix ' // test'
output everything suppress
output docstring_prototype buffer
fn
a: object
/
[clinic start generated code]*/
/* We need to dump the buffer.
* If not, Argument Clinic will emit a warning */
/*[clinic input]
dump buffer
[clinic start generated code]*/
""")
generated = self.clinic.parse(block)
expected_docstring_prototype = "PyDoc_VAR(fn__doc__); // test"
self.assertIn(expected_docstring_prototype, generated)
def test_directive_set_prefix_and_suffix(self):
block = dedent("""
/*[clinic input]
set line_prefix '{block comment start} '
set line_suffix ' {block comment end}'
output everything suppress
output docstring_prototype buffer
fn
a: object
/
[clinic start generated code]*/
/* We need to dump the buffer.
* If not, Argument Clinic will emit a warning */
/*[clinic input]
dump buffer
[clinic start generated code]*/
""")
generated = self.clinic.parse(block)
expected_docstring_prototype = "/* PyDoc_VAR(fn__doc__); */"
self.assertIn(expected_docstring_prototype, generated)
def test_directive_printout(self):
block = dedent("""
/*[clinic input]
output everything buffer
printout test
[clinic start generated code]*/
""")
expected = dedent("""
/*[clinic input]
output everything buffer
printout test
[clinic start generated code]*/
test
/*[clinic end generated code: output=4e1243bd22c66e76 input=898f1a32965d44ca]*/
""")
generated = self.clinic.parse(block)
self.assertEqual(generated, expected)
def test_directive_preserve_twice(self):
err = "Can't have 'preserve' twice in one block!"
block = """
/*[clinic input]
preserve
preserve
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=3)
def test_directive_preserve_input(self):
err = "'preserve' only works for blocks that don't produce any output!"
block = """
/*[clinic input]
preserve
fn
a: object
/
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=6)
def test_directive_preserve_output(self):
block = dedent("""
/*[clinic input]
output everything buffer
preserve
[clinic start generated code]*/
// Preserve this
/*[clinic end generated code: output=eaa49677ae4c1f7d input=559b5db18fddae6a]*/
/*[clinic input]
dump buffer
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=524ce2e021e4eba6]*/
""")
generated = self.clinic.parse(block)
self.assertEqual(generated, block)
def test_directive_output_invalid_command(self):
err = dedent("""
Invalid command or destination name 'cmd'. Must be one of:
- 'preset'
- 'push'
- 'pop'
- 'print'
- 'everything'
- 'cpp_if'
- 'docstring_prototype'
- 'docstring_definition'
- 'methoddef_define'
- 'impl_prototype'
- 'parser_prototype'
- 'parser_definition'
- 'cpp_endif'
- 'methoddef_ifndef'
- 'impl_definition'
""").strip()
block = """
/*[clinic input]
output cmd buffer
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=2)
def test_validate_cloned_init(self):
block = """
/*[clinic input]
class C "void *" ""
C.meth
a: int
[clinic start generated code]*/
/*[clinic input]
@classmethod
C.__init__ = C.meth
[clinic start generated code]*/
"""
err = "'__init__' must be a normal method; got 'FunctionKind.CLASS_METHOD'!"
self.expect_failure(block, err, lineno=8)
def test_validate_cloned_new(self):
block = """
/*[clinic input]
class C "void *" ""
C.meth
a: int
[clinic start generated code]*/
/*[clinic input]
C.__new__ = C.meth
[clinic start generated code]*/
"""
err = "'__new__' must be a class method"
self.expect_failure(block, err, lineno=7)
def test_no_c_basename_cloned(self):
block = """
/*[clinic input]
foo2
[clinic start generated code]*/
/*[clinic input]
foo as = foo2
[clinic start generated code]*/
"""
err = "No C basename provided after 'as' keyword"
self.expect_failure(block, err, lineno=5)
def test_cloned_with_custom_c_basename(self):
raw = dedent("""
/*[clinic input]
# Make sure we don't create spurious clinic/ directories.
output everything suppress
foo2
[clinic start generated code]*/
/*[clinic input]
foo as foo1 = foo2
[clinic start generated code]*/
""")
self.clinic.parse(raw)
funcs = self.clinic.functions
self.assertEqual(len(funcs), 2)
self.assertEqual(funcs[1].name, "foo")
self.assertEqual(funcs[1].c_basename, "foo1")
def test_cloned_with_illegal_c_basename(self):
block = """
/*[clinic input]
class C "void *" ""
foo1
[clinic start generated code]*/
/*[clinic input]
foo2 as .illegal. = foo1
[clinic start generated code]*/
"""
err = "Illegal C basename: '.illegal.'"
self.expect_failure(block, err, lineno=7)
def test_cloned_forced_text_signature(self):
block = dedent("""
/*[clinic input]
@text_signature "($module, a[, b])"
src
a: object
param a
b: object = NULL
/
docstring
[clinic start generated code]*/
/*[clinic input]
dst = src
[clinic start generated code]*/
""")
self.clinic.parse(block)
self.addCleanup(rmtree, "clinic")
funcs = self.clinic.functions
self.assertEqual(len(funcs), 2)
src_docstring_lines = funcs[0].docstring.split("\n")
dst_docstring_lines = funcs[1].docstring.split("\n")
# Signatures are copied.
self.assertEqual(src_docstring_lines[0], "src($module, a[, b])")
self.assertEqual(dst_docstring_lines[0], "dst($module, a[, b])")
# Param docstrings are copied.
self.assertIn(" param a", src_docstring_lines)
self.assertIn(" param a", dst_docstring_lines)
# Docstrings are not copied.
self.assertIn("docstring", src_docstring_lines)
self.assertNotIn("docstring", dst_docstring_lines)
def test_cloned_forced_text_signature_illegal(self):
block = """
/*[clinic input]
@text_signature "($module, a[, b])"
src
a: object
b: object = NULL
/
[clinic start generated code]*/
/*[clinic input]
@text_signature "($module, a_override[, b])"
dst = src
[clinic start generated code]*/
"""
err = "Cannot use @text_signature when cloning a function"
self.expect_failure(block, err, lineno=11)
def test_ignore_preprocessor_in_comments(self):
for dsl in "clinic", "python":
raw = dedent(f"""\
/*[{dsl} input]
# CPP directives, valid or not, should be ignored in C comments.
#
[{dsl} start generated code]*/
""")
self.clinic.parse(raw)
def test_var_keyword_non_dict(self):
err = "'var_keyword_object' is not a valid converter"
block = """
/*[clinic input]
my_test_func
**kwds: object
[clinic start generated code]*/
"""
self.expect_failure(block, err, lineno=4)
class ParseFileUnitTest(TestCase):
def expect_parsing_failure(
self, *, filename, expected_error, verify=True, output=None
):
errmsg = re.escape(dedent(expected_error).strip())
with self.assertRaisesRegex(ClinicError, errmsg):
parse_file(filename, limited_capi=False)
def test_parse_file_no_extension(self) -> None:
self.expect_parsing_failure(
filename="foo",
expected_error="Can't extract file type for file 'foo'"
)
def test_parse_file_strange_extension(self) -> None:
filenames_to_errors = {
"foo.rs": "Can't identify file type for file 'foo.rs'",
"foo.hs": "Can't identify file type for file 'foo.hs'",
"foo.js": "Can't identify file type for file 'foo.js'",
}
for filename, errmsg in filenames_to_errors.items():
with self.subTest(filename=filename):
self.expect_parsing_failure(filename=filename, expected_error=errmsg)
class ClinicGroupPermuterTest(TestCase):
def _test(self, l, m, r, output):
computed = permute_optional_groups(l, m, r)
self.assertEqual(output, computed)
def test_range(self):
self._test([[['start']]], ['stop'], [[['step']]],
(
('stop',),
('start', 'stop',),
('start', 'stop', 'step',),
))
def test_add_window(self):
self._test([[['x', 'y']]], ['ch'], [[['attr']]],
(
('ch',),
('ch', 'attr'),
('x', 'y', 'ch',),
('x', 'y', 'ch', 'attr'),
))
def test_ludicrous(self):
self._test([[['a1', 'a2', 'a3'], ['b1', 'b2']]], ['c1'],
[[['d1', 'd2'], ['e1', 'e2', 'e3']]],
(
('c1',),
('b1', 'b2', 'c1'),
('b1', 'b2', 'c1', 'd1', 'd2'),
('a1', 'a2', 'a3', 'b1', 'b2', 'c1'),
('a1', 'a2', 'a3', 'b1', 'b2', 'c1', 'd1', 'd2'),
('a1', 'a2', 'a3', 'b1', 'b2', 'c1', 'd1', 'd2', 'e1', 'e2', 'e3'),
))
def test_right_only(self):
self._test([], [], [[['a'],['b'],['c']]],
(
(),
('a',),
('a', 'b'),
('a', 'b', 'c')
))
def test_chgat(self):
# Two independent groups on the left.
self._test([[['y', 'x']], [['n']]], ['attr'], [],
(
('attr',),
('n', 'attr'),
('y', 'x', 'attr'),
('y', 'x', 'n', 'attr'),
))
def test_independent_groups_on_the_right(self):
self._test([], ['a'], [[['b']], [['c', 'd']]],
(
('a',),
('a', 'b'),
('a', 'c', 'd'),
('a', 'b', 'c', 'd'),
))
def test_have_left_options_but_required_is_empty(self):
def fn():
permute_optional_groups([[['a']]], [], [])
self.assertRaises(ValueError, fn)
class ClinicLinearFormatTest(TestCase):
def _test(self, input, output, **kwargs):
computed = libclinic.linear_format(input, **kwargs)
self.assertEqual(output, computed)
def test_empty_strings(self):
self._test('', '')
def test_solo_newline(self):
self._test('\n', '\n')
def test_no_substitution(self):
self._test("""
abc
""", """
abc
""")
def test_empty_substitution(self):
self._test("""
abc
{name}
def
""", """
abc
def
""", name='')
def test_single_line_substitution(self):
self._test("""
abc
{name}
def
""", """
abc
GARGLE
def
""", name='GARGLE')
def test_multiline_substitution(self):
self._test("""
abc
{name}
def
""", """
abc
bingle
bungle
def
""", name='bingle\nbungle\n')
def test_text_before_block_marker(self):
regex = re.escape("found before '{marker}'")
with self.assertRaisesRegex(ClinicError, regex):
libclinic.linear_format("no text before marker for you! {marker}",
marker="not allowed!")
def test_text_after_block_marker(self):
regex = re.escape("found after '{marker}'")
with self.assertRaisesRegex(ClinicError, regex):
libclinic.linear_format("{marker} no text after marker for you!",
marker="not allowed!")
class InertParser:
def __init__(self, clinic):
pass
def parse(self, block):
pass
class CopyParser:
def __init__(self, clinic):
pass
def parse(self, block):
block.output = block.input
class ClinicBlockParserTest(TestCase):
def _test(self, input, output):
language = CLanguage(None)
blocks = list(BlockParser(input, language))
writer = BlockPrinter(language)
for block in blocks:
writer.print_block(block)
output = writer.f.getvalue()
assert output == input, "output != input!\n\noutput " + repr(output) + "\n\n input " + repr(input)
def round_trip(self, input):
return self._test(input, input)
def test_round_trip_1(self):
self.round_trip("""
verbatim text here
lah dee dah
""")
def test_round_trip_2(self):