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Add tests for cropping native images

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This commit is contained in:
Kevin Sawicki 2016-10-04 11:28:47 -07:00
parent 2b4fff70d5
commit 0eda33f057
1 changed files with 19 additions and 0 deletions
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19
spec/api-native-image-spec.js
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@ -112,4 +112,23 @@ describe('nativeImage module', () => {
assert(better.toPNG().length < best.toPNG().length)
})
})
describe('crop(bounds)', () => {
it('returns an empty image when the bounds are invalid', () => {
const image = nativeImage.createFromPath(path.join(__dirname, 'fixtures', 'assets', 'logo.png'))
assert(image.crop({width: 0, height: 0, x: 0, y: 0}).isEmpty())
assert(image.crop({width: -1, height: 10, x: 0, y: 0}).isEmpty())
assert(image.crop({width: 10, height: -35, x: 0, y: 0}).isEmpty())
assert(image.crop({width: 100, height: 100, x: 1000, y: 1000}).isEmpty())
})
it('returns a cropped image', () => {
const image = nativeImage.createFromPath(path.join(__dirname, 'fixtures', 'assets', 'logo.png'))
const cropA = image.crop({width: 25, height: 64, x: 0, y: 0})
const cropB = image.crop({width: 25, height: 64, x: 30, y: 40})
assert.deepEqual(cropA.getSize(), {width: 25, height: 64})
assert.deepEqual(cropB.getSize(), {width: 25, height: 64})
assert(!cropA.toPNG().equals(cropB.toPNG()))
})
})
})