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31 lines
970 B
Python
31 lines
970 B
Python
import pytest
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from PIL import Image
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def calculate_branch_coverage():
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b = Image.Branches
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print("Branches covered:", sum(b.values()))
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def test_merge_wrong_number_of_bands():
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R = Image.new('L', (100, 100), color=255)
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G = Image.new('L', (100, 100), color=128)
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with pytest.raises(ValueError, match="wrong number of bands"):
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Image.merge('RGB', [R, G])
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def test_merge_mode_mismatch():
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R = Image.new('L', (100, 100), color=255)
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G = Image.new('L', (100, 100), color=128)
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B = Image.new('1', (100, 100)) # Incorrect mode
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with pytest.raises(ValueError, match="mode mismatch"):
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Image.merge('RGB', [R, G, B])
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def test_merge_size_mismatch():
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R = Image.new('L', (100, 100), color=255)
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G = Image.new('L', (200, 100), color=128) # Different size
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B = Image.new('L', (100, 100), color=0)
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with pytest.raises(ValueError, match="size mismatch"):
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Image.merge('RGB', [R, G, B])
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