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Diffstat (limited to 'library/cropperjs/test/specs/methods/getCroppedCanvas.spec.js')
-rw-r--r-- | library/cropperjs/test/specs/methods/getCroppedCanvas.spec.js | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/library/cropperjs/test/specs/methods/getCroppedCanvas.spec.js b/library/cropperjs/test/specs/methods/getCroppedCanvas.spec.js new file mode 100644 index 000000000..16441773f --- /dev/null +++ b/library/cropperjs/test/specs/methods/getCroppedCanvas.spec.js @@ -0,0 +1,195 @@ +describe('getCroppedCanvas (method)', () => { + it('should get a canvas with the whole image drew when it is not cropped', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + autoCrop: false, + + ready() { + const canvasData = cropper.getCanvasData(); + const canvas = cropper.getCroppedCanvas(); + + expect(canvas).to.be.an.instanceof(HTMLCanvasElement); + expect(canvas.width).to.equal(canvasData.naturalWidth); + expect(canvas.height).to.equal(canvasData.naturalHeight); + done(); + }, + }); + }); + + it('should get a canvas with the cropped area of the image drew', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const data = cropper.getData(); + const canvas = cropper.getCroppedCanvas(); + + expect(canvas).to.be.an.instanceof(HTMLCanvasElement); + expect(canvas.width).to.equal(data.width); + expect(canvas.height).to.equal(data.height); + done(); + }, + }); + }); + + it('should match the given width', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const width = 160; + const canvas = cropper.getCroppedCanvas({ + width, + }); + + expect(canvas.width).to.equal(width); + done(); + }, + }); + }); + + it('should match the given height', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const height = 90; + const canvas = cropper.getCroppedCanvas({ + height, + }); + + expect(canvas.height).to.equal(height); + done(); + }, + }); + }); + + it('should be contained when both width and height are given', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const width = 160; + const height = 90; + const canvas = cropper.getCroppedCanvas({ + width, + height, + }); + + expect(canvas.width).to.be.most(width); + expect(canvas.height).to.be.most(height); + done(); + }, + }); + }); + + it('should not be greater than the maximum width', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const maxWidth = 160; + const canvas = cropper.getCroppedCanvas({ + maxWidth, + }); + + expect(canvas.width).to.be.most(maxWidth); + done(); + }, + }); + }); + + it('should not be greater than the maximum height', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const maxHeight = 90; + const canvas = cropper.getCroppedCanvas({ + maxHeight, + }); + + expect(canvas.height).to.be.most(maxHeight); + done(); + }, + }); + }); + + it('should not be greater than both the maximum width and maximum height', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const maxWidth = 160; + const maxHeight = 90; + const canvas = cropper.getCroppedCanvas({ + maxWidth, + maxHeight, + }); + + expect(canvas.width).to.be.most(maxWidth); + expect(canvas.height).to.be.most(maxHeight); + done(); + }, + }); + }); + + it('should not be less than the minimum width', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const minWidth = 1600; + const canvas = cropper.getCroppedCanvas({ + minWidth, + }); + + expect(canvas.width).to.be.least(minWidth); + done(); + }, + }); + }); + + it('should not be less than the minimum height', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const minHeight = 900; + const canvas = cropper.getCroppedCanvas({ + minHeight, + }); + + expect(canvas.height).to.be.least(minHeight); + done(); + }, + }); + }); + + it('should not be less than both the minimum width and minimum height', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const minWidth = 1600; + const minHeight = 900; + const canvas = cropper.getCroppedCanvas({ + minWidth, + minHeight, + }); + + expect(canvas.width).to.be.least(minWidth); + expect(canvas.height).to.be.least(minHeight); + done(); + }, + }); + }); + + it('should match the given fill color', (done) => { + const image = window.createImage(); + const cropper = new Cropper(image, { + ready() { + const canvas = cropper.zoomTo(0.1).getCroppedCanvas({ + fillColor: '#010101', + }); + const pixelData = canvas.getContext('2d').getImageData(0, 0, 1, 1).data; + + expect(pixelData[0]).to.equal(1, 'red is 1'); + expect(pixelData[1]).to.equal(1, 'green is 1'); + expect(pixelData[2]).to.equal(1, 'blue is 1'); + expect(pixelData[3]).to.equal(255, 'color is opaque'); + done(); + }, + }); + }); +}); |