Files
codeql/swift/codegen/test/test_render.py
2023-02-27 09:46:48 +01:00

356 lines
12 KiB
Python

import sys
import pytest
from swift.codegen.test.utils import *
import hashlib
generator = "foo"
@pytest.fixture
def pystache_renderer_cls():
with mock.patch("pystache.Renderer") as ret:
yield ret
@pytest.fixture
def pystache_renderer(pystache_renderer_cls):
ret = mock.Mock()
pystache_renderer_cls.return_value = ret
return ret
@pytest.fixture
def sut(pystache_renderer):
return render.Renderer(generator, paths.root_dir)
def assert_file(file, text):
with open(file) as inp:
assert inp.read() == text
def hash(text):
h = hashlib.sha256()
h.update(text.encode())
return h.hexdigest()
def test_constructor(pystache_renderer_cls, sut):
pystache_init, = pystache_renderer_cls.mock_calls
assert set(pystache_init.kwargs) == {'search_dirs', 'escape'}
assert pystache_init.kwargs['search_dirs'] == str(paths.templates_dir)
an_object = object()
assert pystache_init.kwargs['escape'](an_object) is an_object
def test_render(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
text = "some text"
pystache_renderer.render_name.side_effect = (text,)
output = paths.root_dir / "some/output.txt"
sut.render(data, output)
assert_file(output, text)
assert pystache_renderer.mock_calls == [
mock.call.render_name(data.template, data, generator=generator),
]
def test_managed_render(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
text = "some text"
pystache_renderer.render_name.side_effect = (text,)
output = paths.root_dir / "some/output.txt"
registry = paths.root_dir / "a/registry.list"
write(registry)
with sut.manage(generated=(), stubs=(), registry=registry) as renderer:
renderer.render(data, output)
assert renderer.written == {output}
assert_file(output, text)
assert_file(registry, f"some/output.txt {hash(text)} {hash(text)}\n")
assert pystache_renderer.mock_calls == [
mock.call.render_name(data.template, data, generator=generator),
]
def test_managed_render_with_no_registry(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
text = "some text"
pystache_renderer.render_name.side_effect = (text,)
output = paths.root_dir / "some/output.txt"
registry = paths.root_dir / "a/registry.list"
with sut.manage(generated=(), stubs=(), registry=registry) as renderer:
renderer.render(data, output)
assert renderer.written == {output}
assert_file(output, text)
assert_file(registry, f"some/output.txt {hash(text)} {hash(text)}\n")
assert pystache_renderer.mock_calls == [
mock.call.render_name(data.template, data, generator=generator),
]
def test_managed_render_with_post_processing(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
text = "some text"
postprocessed_text = "some other text"
pystache_renderer.render_name.side_effect = (text,)
output = paths.root_dir / "some/output.txt"
registry = paths.root_dir / "a/registry.list"
write(registry)
with sut.manage(generated=(), stubs=(), registry=registry) as renderer:
renderer.render(data, output)
assert renderer.written == {output}
assert_file(output, text)
write(output, postprocessed_text)
assert_file(registry, f"some/output.txt {hash(text)} {hash(postprocessed_text)}\n")
assert pystache_renderer.mock_calls == [
mock.call.render_name(data.template, data, generator=generator),
]
def test_managed_render_with_erasing(pystache_renderer, sut):
output = paths.root_dir / "some/output.txt"
stub = paths.root_dir / "some/stub.txt"
registry = paths.root_dir / "a/registry.list"
write(output)
write(stub, "// generated bla bla")
write(registry)
with sut.manage(generated=(output,), stubs=(stub,), registry=registry) as renderer:
pass
assert not output.is_file()
assert not stub.is_file()
assert_file(registry, "")
assert pystache_renderer.mock_calls == []
def test_managed_render_with_skipping_of_generated_file(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
output = paths.root_dir / "some/output.txt"
some_output = "some output"
registry = paths.root_dir / "a/registry.list"
write(output, some_output)
write(registry, f"some/output.txt {hash(some_output)} {hash(some_output)}\n")
pystache_renderer.render_name.side_effect = (some_output,)
with sut.manage(generated=(output,), stubs=(), registry=registry) as renderer:
renderer.render(data, output)
assert renderer.written == set()
assert_file(output, some_output)
assert_file(registry, f"some/output.txt {hash(some_output)} {hash(some_output)}\n")
assert pystache_renderer.mock_calls == [
mock.call.render_name(data.template, data, generator=generator),
]
def test_managed_render_with_skipping_of_stub_file(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
stub = paths.root_dir / "some/stub.txt"
some_output = "// generated some output"
some_processed_output = "// generated some processed output"
registry = paths.root_dir / "a/registry.list"
write(stub, some_processed_output)
write(registry, f"some/stub.txt {hash(some_output)} {hash(some_processed_output)}\n")
pystache_renderer.render_name.side_effect = (some_output,)
with sut.manage(generated=(), stubs=(stub,), registry=registry) as renderer:
renderer.render(data, stub)
assert renderer.written == set()
assert_file(stub, some_processed_output)
assert_file(registry, f"some/stub.txt {hash(some_output)} {hash(some_processed_output)}\n")
assert pystache_renderer.mock_calls == [
mock.call.render_name(data.template, data, generator=generator),
]
def test_managed_render_with_modified_generated_file(pystache_renderer, sut):
output = paths.root_dir / "some/output.txt"
some_processed_output = "// some processed output"
registry = paths.root_dir / "a/registry.list"
write(output, "// something else")
write(registry, f"some/output.txt whatever {hash(some_processed_output)}\n")
with pytest.raises(render.Error):
sut.manage(generated=(output,), stubs=(), registry=registry)
def test_managed_render_with_modified_stub_file_still_marked_as_generated(pystache_renderer, sut):
stub = paths.root_dir / "some/stub.txt"
some_processed_output = "// generated some processed output"
registry = paths.root_dir / "a/registry.list"
write(stub, "// generated something else")
write(registry, f"some/stub.txt whatever {hash(some_processed_output)}\n")
with pytest.raises(render.Error):
sut.manage(generated=(), stubs=(stub,), registry=registry)
def test_managed_render_with_modified_stub_file_not_marked_as_generated(pystache_renderer, sut):
stub = paths.root_dir / "some/stub.txt"
some_processed_output = "// generated some processed output"
registry = paths.root_dir / "a/registry.list"
write(stub, "// no more generated")
write(registry, f"some/stub.txt whatever {hash(some_processed_output)}\n")
with sut.manage(generated=(), stubs=(stub,), registry=registry) as renderer:
pass
assert_file(registry, "")
class MyError(Exception):
pass
def test_managed_render_exception_drops_written_and_inexsistent_from_registry(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
text = "some text"
pystache_renderer.render_name.side_effect = (text,)
output = paths.root_dir / "some/output.txt"
registry = paths.root_dir / "x/registry.list"
write(output, text)
write(paths.root_dir / "a")
write(paths.root_dir / "c")
write(registry, "a a a\n"
f"some/output.txt whatever {hash(text)}\n"
"b b b\n"
"c c c")
with pytest.raises(MyError):
with sut.manage(generated=(), stubs=(), registry=registry) as renderer:
renderer.render(data, output)
raise MyError
assert_file(registry, "a a a\nc c c\n")
def test_managed_render_drops_inexsistent_from_registry(pystache_renderer, sut):
registry = paths.root_dir / "x/registry.list"
write(paths.root_dir / "a")
write(paths.root_dir / "c")
write(registry, f"a {hash('')} {hash('')}\n"
"b b b\n"
f"c {hash('')} {hash('')}")
with sut.manage(generated=(), stubs=(), registry=registry):
pass
assert_file(registry, f"a {hash('')} {hash('')}\nc {hash('')} {hash('')}\n")
def test_managed_render_exception_does_not_erase(pystache_renderer, sut):
output = paths.root_dir / "some/output.txt"
stub = paths.root_dir / "some/stub.txt"
registry = paths.root_dir / "a/registry.list"
write(output)
write(stub, "// generated bla bla")
write(registry)
with pytest.raises(MyError):
with sut.manage(generated=(output,), stubs=(stub,), registry=registry) as renderer:
raise MyError
assert output.is_file()
assert stub.is_file()
def test_render_with_extensions(pystache_renderer, sut):
data = mock.Mock(spec=("template", "extensions"))
data.template = "test_template"
data.extensions = ["foo", "bar", "baz"]
output = pathlib.Path("my", "test", "file")
expected_outputs = [pathlib.Path("my", "test", p) for p in ("file.foo", "file.bar", "file.baz")]
rendered = [f"text{i}" for i in range(len(expected_outputs))]
pystache_renderer.render_name.side_effect = rendered
sut.render(data, output)
expected_templates = ["test_template_foo", "test_template_bar", "test_template_baz"]
assert pystache_renderer.mock_calls == [
mock.call.render_name(t, data, generator=generator)
for t in expected_templates
]
for expected_output, expected_contents in zip(expected_outputs, rendered):
assert_file(expected_output, expected_contents)
def test_managed_render_with_force_not_skipping_generated_file(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
output = paths.root_dir / "some/output.txt"
some_output = "some output"
registry = paths.root_dir / "a/registry.list"
write(output, some_output)
write(registry, f"some/output.txt {hash(some_output)} {hash(some_output)}\n")
pystache_renderer.render_name.side_effect = (some_output,)
with sut.manage(generated=(output,), stubs=(), registry=registry, force=True) as renderer:
renderer.render(data, output)
assert renderer.written == {output}
assert_file(output, some_output)
assert_file(registry, f"some/output.txt {hash(some_output)} {hash(some_output)}\n")
assert pystache_renderer.mock_calls == [
mock.call.render_name(data.template, data, generator=generator),
]
def test_managed_render_with_force_not_skipping_stub_file(pystache_renderer, sut):
data = mock.Mock(spec=("template",))
stub = paths.root_dir / "some/stub.txt"
some_output = "// generated some output"
some_processed_output = "// generated some processed output"
registry = paths.root_dir / "a/registry.list"
write(stub, some_processed_output)
write(registry, f"some/stub.txt {hash(some_output)} {hash(some_processed_output)}\n")
pystache_renderer.render_name.side_effect = (some_output,)
with sut.manage(generated=(), stubs=(stub,), registry=registry, force=True) as renderer:
renderer.render(data, stub)
assert renderer.written == {stub}
assert_file(stub, some_output)
assert_file(registry, f"some/stub.txt {hash(some_output)} {hash(some_output)}\n")
assert pystache_renderer.mock_calls == [
mock.call.render_name(data.template, data, generator=generator),
]
def test_managed_render_with_force_ignores_modified_generated_file(sut):
output = paths.root_dir / "some/output.txt"
some_processed_output = "// some processed output"
registry = paths.root_dir / "a/registry.list"
write(output, "// something else")
write(registry, f"some/output.txt whatever {hash(some_processed_output)}\n")
with sut.manage(generated=(output,), stubs=(), registry=registry, force=True):
pass
def test_managed_render_with_force_ignores_modified_stub_file_still_marked_as_generated(sut):
stub = paths.root_dir / "some/stub.txt"
some_processed_output = "// generated some processed output"
registry = paths.root_dir / "a/registry.list"
write(stub, "// generated something else")
write(registry, f"some/stub.txt whatever {hash(some_processed_output)}\n")
with sut.manage(generated=(), stubs=(stub,), registry=registry, force=True):
pass
if __name__ == '__main__':
sys.exit(pytest.main([__file__] + sys.argv[1:]))