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test_graphviz / test_image_type fails #811

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jlapeyre opened this issue Feb 10, 2023 · 0 comments · May be fixed by #830
Open

test_graphviz / test_image_type fails #811

jlapeyre opened this issue Feb 10, 2023 · 0 comments · May be fixed by #830

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@jlapeyre
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jlapeyre commented Feb 10, 2023 •
edited

When running tox -epy exactly one test fails:

rustworkx/tests/rustworkx_tests/visualization/test_graphviz.py

Lines 120 to 124 in a5178e2

def test_image_type(self):
graph = rustworkx.directed_gnp_random_graph(50, 0.8)
image = graphviz_draw(graph, image_type="jpg")
self.assertIsInstance(image, PIL.Image.Image)
_save_image(image, "test_graphviz_draw_image_type.jpg")

Failure occurs already on line 122.
Running a script with copies of lines 121 and 122 produces the same error

traceback

      File "/home/lapeyre/qiskit/rustworkx/tests/rustworkx_tests/visualization/test_graphviz.py", line 122, in test_image_type
    image = graphviz_draw(graph, image_type="jpg")
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

      File "/home/lapeyre/qiskit/rustworkx/.tox/py/lib64/python3.11/site-packages/rustworkx/visualization/graphviz.py", line 187, in graphviz_draw
    dot_result = subprocess.run(
                 ^^^^^^^^^^^^^^^

      File "/usr/lib64/python3.11/subprocess.py", line 569, in run
    raise CalledProcessError(retcode, process.args,

    subprocess.CalledProcessError: Command '['dot', '-T', 'jpg']' returned non-zero exit status 1.

versions

rustworkx main Feb 8, 2023 e4170ef
fedora linux
/usr/bin/dot -V => dot - graphviz version 5.0.0 (0)
Python 3.11.0
RETWORKX_TEST_PRESERVE_IMAGES=1
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Get list of supported image formats from dot instead of hardcoding jlapeyre/rustworkx
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@jlapeyre