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43 lines
1.3 KiB
43 lines
1.3 KiB
/* eslint-env jest*/ |
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const compareImages = require("../compareImages"); |
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const fs = require("fs"); |
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describe("compareImages", () => { |
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test("works with buffers", async () => { |
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const data = await compareImages( |
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fs.readFileSync("./demoassets/People.jpg"), |
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fs.readFileSync("./demoassets/People2.jpg") |
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); |
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expect(data.isSameDimensions).toBe(true); |
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expect(data.misMatchPercentage).toEqual("8.66"); |
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const buffer = data.getBuffer(); |
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expect(buffer).toBeInstanceOf(Buffer); |
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expect(buffer.length).toBe(91876); |
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const comparison = fs.readFileSync( |
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"./nodejs-tests/assets/PeopleComparedToPeople2.png" |
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); |
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expect(buffer.equals(comparison)).toBe(true); |
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const buffer2 = data.getBuffer(true); |
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const comparison2 = fs.readFileSync( |
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"./nodejs-tests/assets/PeopleComparedToPeople2WithOriginal.png" |
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); |
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expect(buffer2.equals(comparison2)).toBe(true); |
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}); |
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test("throws when failed", async () => { |
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const promise = compareImages( |
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fs.readFileSync("./demoassets/People.jpg"), |
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"bogus data" |
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); |
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await expect(promise).rejects.toMatch( |
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"Error: error while reading from input stream" |
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); |
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}); |
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});
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