1 files changed, 22 insertions, 0 deletions
diff --git a/gerbonara/gerber/tests/conftest.py b/gerbonara/gerber/tests/conftest.py
new file mode 100644
index 0000000..0ad2555
--- /dev/null
+++ b/gerbonara/gerber/tests/conftest.py
@@ -0,0 +1,22 @@
+
+import pytest
+
+from .image_support import ImageDifference
+
+@pytest.hookimpl(tryfirst=True, hookwrapper=True)
+def pytest_assertrepr_compare(op, left, right):
+    if isinstance(left, ImageDifference) or isinstance(right, ImageDifference):
+        diff = left if isinstance(left, ImageDifference) else right
+        return [
+            f'Image difference assertion failed.',
+            f'    Reference: {diff.ref_path}',
+            f'    Actual: {diff.out_path}',
+            f'    Calculated difference: {diff}', ]
+
+# store report in node object so tmp_gbr can determine if the test failed.
+@pytest.hookimpl(tryfirst=True, hookwrapper=True)
+def pytest_runtest_makereport(item, call):
+    outcome = yield
+    rep = outcome.get_result()
+    setattr(item, f'rep_{rep.when}', rep)
+