Use numpy.testing.assert_allclose and read arrays in 32 bit

[timor-amd]

No description provided.

[Copilot]

Pull request overview

Updates Python unit tests and cocotb testbenches to use NumPy’s np.testing.assert_allclose (for clearer failure output) and to pack/unpack pixel data using 32-bit arrays where appropriate, aligning test data types with wider datapaths and avoiding 16-bit truncation in simulations.

Changes:

• Replace assert np.allclose(...) with np.testing.assert_allclose(...) in Python tests.
• Update AXI video testbench buffers to use np.uint32 instead of np.uint16 for packed input and captured output.
• Rename the linebuffer sim test function to test_linebuffer_basic to match its module intent.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
python/test/test_utils.py	Switch bitsqrt test to np.testing.assert_allclose and remove unused commented variants.
python/test/test_gamma.py	Use np.testing.assert_allclose for gamma PWL comparison.
python/tb/test_minmaxmean.py	Pack input lines as np.uint32 when sending frames.
python/tb/test_linebuffer.py	Rename sim test to linebuffer and use np.uint32 for pack/unpack buffers.
python/tb/test_demosaic.py	Store unpacked result as np.uint32 and use np.testing.assert_allclose for comparison.
python/tb/test_colorgain.py	Use np.testing.assert_allclose for result/reference comparison.
python/tb/test_blc.py	Use np.testing.assert_allclose for result/reference comparison.

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