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Tests: Add tests for image format saving and loading

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This adds saving and loading tests for our supported image formats.

**Saving - bf_imbuf_save.py**
There are 2 template images which are loaded anew for each file save
attempt.  One is an 8-bit RGBA image and the other 32-bit. This is
required as many formats use a variety of factors to determine which of
`ibuf->rect` or `ibuf->rectfloat` to use for processing.  The templates
are constructed to have alpha transparency as well as values > 1 (or
clamped to 1 for the case of the 8-bit template).

Test flow:
 - Load in an appropriate template image
 - Save it to the desired format with the desired set of options
 - Compare against the reference image

Notes:
 - 98 references are used totaling ~3.6MB
 - 10-12 second test runtime
 - Templates can be reconstructed with the create-templates.blend file

**Loading - bf_imbuf_load.py**
Test flow:
 - Load in each of the reference images
 - Save them back out as .exr
 - Save additional metadata to a secondary file (alpha mode, colorspace etc)
 - Compare the saved out .exr with another set of reference .exrs
 - Compare the saved out file metadata with set of reference metadata

Notes:
 - 98 exr references are used totaling ~10MB
 - 10-12 second test runtime as well

A HTML report is not implemented. The diff output organization is very
similar to the other tests so it should be somewhat easy to do in the
future if we want.

The standard set of environment variables are implemented for both:
BLENDER_TEST_UPDATE, BLENDER_VERBOSE, and BLENDER_TEST_COLOR

Pull Request #104442
This commit is contained in:
Jesse Yurkovich
2023-02-20 19:04:34 -08:00
parent ff3fd5f1ce
commit 7699c7407d
6 changed files with 634 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
tests/python/modules/render_report.py
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@@ -14,44 +14,7 @@ import sys
import time
from . import global_report
class COLORS_ANSI:
RED = '\033[00;31m'
GREEN = '\033[00;32m'
ENDC = '\033[0m'
class COLORS_DUMMY:
RED = ''
GREEN = ''
ENDC = ''
COLORS = COLORS_DUMMY
def print_message(message, type=None, status=''):
if type == 'SUCCESS':
print(COLORS.GREEN, end="")
elif type == 'FAILURE':
print(COLORS.RED, end="")
status_text = ...
if status == 'RUN':
status_text = " RUN "
elif status == 'OK':
status_text = " OK "
elif status == 'PASSED':
status_text = " PASSED "
elif status == 'FAILED':
status_text = " FAILED "
else:
status_text = status
if status_text:
print("[{}]" . format(status_text), end="")
print(COLORS.ENDC, end="")
print(" {}" . format(message))
sys.stdout.flush()
from .colored_print import (print_message, use_message_colors)
def blend_list(dirpath, device, blacklist):
@@ -151,8 +114,7 @@ class Report:
self.update = os.getenv('BLENDER_TEST_UPDATE') is not None
if os.environ.get("BLENDER_TEST_COLOR") is not None:
global COLORS, COLORS_ANSI
COLORS = COLORS_ANSI
use_message_colors()
self.failed_tests = ""
self.passed_tests = ""