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from __future__ import with_statement
from contextlib import contextmanager
from test import TemplateTest, eq_, raises, template_base, mock
import os
from mako.cmd import cmdline
class CmdTest(TemplateTest):
@contextmanager
def _capture_output_fixture(self, stream="stdout"):
with mock.patch("sys.%s" % stream) as stdout:
yield stdout
def test_stdin_success(self):
with self._capture_output_fixture() as stdout:
with mock.patch("sys.stdin", mock.Mock(
read=mock.Mock(return_value="hello world ${x}"))):
cmdline(["--var", "x=5", "-"])
eq_(stdout.write.mock_calls[0][1][0], "hello world 5")
def test_stdin_syntax_err(self):
with mock.patch("sys.stdin", mock.Mock(
read=mock.Mock(return_value="${x"))):
with self._capture_output_fixture("stderr") as stderr:
with raises(SystemExit):
cmdline(["--var", "x=5", "-"])
assert "SyntaxException: Expected" in \
stderr.write.mock_calls[0][1][0]
assert "Traceback" in stderr.write.mock_calls[0][1][0]
def test_stdin_rt_err(self):
with mock.patch("sys.stdin", mock.Mock(
read=mock.Mock(return_value="${q}"))):
with self._capture_output_fixture("stderr") as stderr:
with raises(SystemExit):
cmdline(["--var", "x=5", "-"])
assert "NameError: Undefined" in stderr.write.mock_calls[0][1][0]
assert "Traceback" in stderr.write.mock_calls[0][1][0]
def test_file_success(self):
with self._capture_output_fixture() as stdout:
cmdline(["--var", "x=5",
os.path.join(template_base, "cmd_good.mako")])
eq_(stdout.write.mock_calls[0][1][0], "hello world 5")
def test_file_syntax_err(self):
with self._capture_output_fixture("stderr") as stderr:
with raises(SystemExit):
cmdline(["--var", "x=5",
os.path.join(template_base, "cmd_syntax.mako")])
assert "SyntaxException: Expected" in stderr.write.mock_calls[0][1][0]
assert "Traceback" in stderr.write.mock_calls[0][1][0]
def test_file_rt_err(self):
with self._capture_output_fixture("stderr") as stderr:
with raises(SystemExit):
cmdline(["--var", "x=5",
os.path.join(template_base, "cmd_runtime.mako")])
assert "NameError: Undefined" in stderr.write.mock_calls[0][1][0]
assert "Traceback" in stderr.write.mock_calls[0][1][0]
def test_file_notfound(self):
with raises(SystemExit, "error: can't find fake.lalala"):
cmdline(["--var", "x=5", "fake.lalala"])
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