With the introduction and use of pytest, it is simple and easy to
execute specific tests in isolation through documented command line
arguments. Either by specifying the module path or through the `-k
EXPRESSION` argument. There is no longer any need to provide the
boilerplate:
if __name__ == '__main__':
unittest.main()
To every test file. It is simply noise.
The pattern remains in test files that aren't named with `test_*` as
those files are not discovered and executed by pytest by default.
The previous test configuration made it difficult to run a single test
with the pytest CLI. There were two major issues:
- The Tests directory was not a package. It now includes a __init__.py
file and imports from other tests modules are done with relative
imports.
- setup.cfg always specified the Tests directory. So even if a specific
test were specified as a CLI arg, this configuration would also always
include all tests. This configuration has been removed to allow
specifying a single test on the command line.
Contributors can now run specific tests with a single command such as:
$ tox -e py37 -- Tests/test_file_pdf.py::TestFilePdf.test_rgb
This makes it easy and faster to iterate on a single test failure and is
very familiar to those that have previously used tox and pytest.
When running tox or pytest with no arguments, they still discover and
runs all tests in the Tests directory.
Instead, use PSFile() wrapper to handle all newline in the EPS spec.
Update line ending tests to handle all combinations of '\n' and '\r'.
Fixes warning "DeprecationWarning: 'U' mode is deprecated" in tests.
Fixes EPS import by adding the missing "showpage" Postscript command
to the end of the gs call.
See: https://bugs.ghostscript.com/show_bug.cgi?id=698272
Signed-off-by: Samuele Kaplun <samuele.kaplun@cern.ch>
Due to differences in rendering between platforms (mainly antialiasing), we had to lower the rigor with which we test our EPS handling. Instead of making the test fail if the rendered image does not exactly match, we now only fail if the images are grossly divergent.
We now have a test harness for EPS files. Two variants were created one for the default scale=1 and one where scale=2. These two tests are run against two different EPS files, one with zero for the start of the bounding box and one where this is not the case. PNG test renders are used to make sure the output match what we expect. Lastly the sample EPS files were generated using the included create_eps.gnuplot file and the gnuplot program on a Mac.
