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Allow check_graphic to be more flexible #4370

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merged 2 commits into from
Oct 13, 2021
Merged

Allow check_graphic to be more flexible #4370

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7dead9d
Allow `check_graphic` to be more flexible
jamesp Oct 13, 2021
625bbf6
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Oct 13, 2021
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29 changes: 21 additions & 8 deletions lib/iris/tests/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@
import subprocess
import sys
import threading
from typing import Dict, List
import unittest
from unittest import mock
import warnings
Expand Down Expand Up @@ -878,7 +879,9 @@ def check_graphic(self):
unique_id = self._unique_id()
repo_fname = os.path.join(_RESULT_PATH, "imagerepo.json")
with open(repo_fname, "rb") as fi:
repo = json.load(codecs.getreader("utf-8")(fi))
repo: Dict[str, List[str]] = json.load(
codecs.getreader("utf-8")(fi)
)

try:
#: The path where the images generated by the tests should go.
Expand Down Expand Up @@ -949,13 +952,16 @@ def _create_missing():
phash = imagehash.phash(Image.open(buffer), hash_size=_HASH_SIZE)

if unique_id not in repo:
if dev_mode:
_create_missing()
else:
figure.savefig(result_fname)
emsg = "Missing image test result: {}."
raise AssertionError(emsg.format(unique_id))
else:
# The unique id might not be fully qualified, e.g.
# expects iris.tests.test_quickplot.TestLabels.test_contour.0,
# but got test_quickplot.TestLabels.test_contour.0
# if we find single partial match from end of the key
# then use that, else fall back to the unknown id state.
matches = [key for key in repo if key.endswith(unique_id)]
if len(matches) == 1:
unique_id = matches[0]

if unique_id in repo:
uris = repo[unique_id]
# Extract the hex basename strings from the uris.
hexes = [
Expand Down Expand Up @@ -984,6 +990,13 @@ def _create_missing():
else:
emsg = "Image comparison failed: {}"
raise AssertionError(emsg.format(msg))
else:
if dev_mode:
_create_missing()
else:
figure.savefig(result_fname)
emsg = "Missing image test result: {}."
raise AssertionError(emsg.format(unique_id))

if _DISPLAY_FIGURES:
plt.show()
Expand Down