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perf: provide diffBuffer in ImageDiffError #781

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merged 1 commit into from
Aug 21, 2023
Merged

perf: provide diffBuffer in ImageDiffError #781

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14 changes: 7 additions & 7 deletions package-lock.json
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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -62,7 +62,7 @@
"glob-extra": "^5.0.2",
"inherit": "^2.2.2",
"lodash": "^4.17.21",
"looks-same": "^8.1.0",
"looks-same": "^8.2.1",
"micromatch": "^4.0.5",
"mocha": "^10.2.0",
"plugins-loader": "^1.2.0",
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4 changes: 2 additions & 2 deletions src/browser/commands/assert-view/capture-processors/assert-refs.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ exports.handleNoRefImage = (currImg, refImg, state) => {
};

exports.handleImageDiff = (currImg, refImg, state, opts) => {
const { tolerance, antialiasingTolerance, canHaveCaret, diffAreas, config } = opts;
const { tolerance, antialiasingTolerance, canHaveCaret, diffAreas, config, diffBuffer } = opts;
const {
buildDiffOpts,
system: { diffColor },
Expand All @@ -25,5 +25,5 @@ exports.handleImageDiff = (currImg, refImg, state, opts) => {
...buildDiffOpts,
};

return Promise.reject(ImageDiffError.create(state, currImg, refImg, diffOpts, diffAreas));
return Promise.reject(ImageDiffError.create(state, currImg, refImg, diffOpts, diffAreas, diffBuffer));
};
27 changes: 20 additions & 7 deletions src/browser/commands/assert-view/errors/image-diff-error.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ type ImageDiffErrorConstructor<T> = new (
refImg: ImageInfo,
diffOpts: DiffOptions,
diffAreas: DiffAreas,
diffBuffer: Buffer,
) => T;

interface ImageDiffErrorData {
Expand All @@ -29,46 +30,58 @@ interface ImageDiffErrorData {
diffOpts: DiffOptions;
diffBounds: LooksSameResult["diffBounds"];
diffClusters: LooksSameResult["diffClusters"];
diffBuffer: Buffer;
}

export class ImageDiffError extends BaseStateError {
message: string;
diffOpts: DiffOptions;
diffBounds?: DiffAreas["diffBounds"];
diffClusters?: DiffAreas["diffClusters"];
diffBuffer: Buffer;

static create<T extends ImageDiffError>(
this: ImageDiffErrorConstructor<T>,
stateName: string,
currImg: ImageInfo,
refImg: ImageInfo,
diffOpts: DiffOptions,
diffAreas: DiffAreas = {},
diffAreas = {} as DiffAreas,
diffBuffer: Buffer,
): T {
return new this(stateName, currImg, refImg, diffOpts, diffAreas);
return new this(stateName, currImg, refImg, diffOpts, diffAreas, diffBuffer);
}

static fromObject<T>(this: ImageDiffErrorConstructor<T>, data: ImageDiffErrorData): T {
const { diffBounds, diffClusters } = data;
return new this(data.stateName, data.currImg, data.refImg, data.diffOpts, {
diffBounds,
diffClusters,
});
return new this(
data.stateName,
data.currImg,
data.refImg,
data.diffOpts,
{
diffBounds,
diffClusters,
},
data.diffBuffer,
);
}

constructor(
stateName: string,
currImg: ImageInfo,
refImg: ImageInfo,
diffOpts: DiffOptions,
{ diffBounds, diffClusters }: DiffAreas = {},
{ diffBounds, diffClusters } = {} as DiffAreas,
diffBuffer: Buffer,
) {
super(stateName, currImg, refImg);

this.message = `images are different for "${stateName}" state`;
this.diffOpts = diffOpts;
this.diffBounds = diffBounds;
this.diffClusters = diffClusters;
this.diffBuffer = diffBuffer;
}

saveDiffTo(diffPath: string): Promise<null> {
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12 changes: 11 additions & 1 deletion src/browser/commands/assert-view/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -90,14 +90,24 @@ module.exports = browser => {
equal,
diffBounds,
diffClusters,
diffImage,
metaInfo = {},
} = await Image.compare(refBuffer, currBuffer, imageCompareOpts);
Object.assign(refImg, metaInfo.refImg);

if (!equal) {
const diffBuffer = await diffImage.createBuffer("png");
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Тут передаю именно Buffer, потому что прототип потеряется, и методов save / createBuffer в html-reporter не будет

const diffAreas = { diffBounds, diffClusters };
const { tolerance, antialiasingTolerance } = opts;
const imageDiffOpts = { tolerance, antialiasingTolerance, canHaveCaret, diffAreas, config, emitter };
const imageDiffOpts = {
tolerance,
antialiasingTolerance,
canHaveCaret,
diffAreas,
config,
emitter,
diffBuffer,
};

await fs.outputFile(currImg.path, currBuffer);

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1 change: 1 addition & 0 deletions src/image.js
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Original file line number Diff line number Diff line change
Expand Up @@ -159,6 +159,7 @@ module.exports = class Image {
ignoreCaret: opts.canHaveCaret,
pixelRatio: opts.pixelRatio,
...opts.compareOpts,
createDiffImage: true,
};
["tolerance", "antialiasingTolerance"].forEach(option => {
if (option in opts) {
Expand Down
23 changes: 16 additions & 7 deletions test/src/browser/commands/assert-view/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@ describe("assertView command", () => {

beforeEach(() => {
sandbox.stub(Image, "create").returns(Object.create(Image.prototype));
sandbox.stub(Image, "compare").resolves(true);
sandbox.stub(Image, "compare").resolves({ diffImage: { createBuffer: sandbox.stub() } });
sandbox.stub(Image.prototype, "getSize");

sandbox.stub(fs, "readFileSync");
Expand Down Expand Up @@ -494,7 +494,7 @@ describe("assertView command", () => {

describe("image compare", () => {
it("should add opts from runtime config to temp", async () => {
Image.compare.resolves({ equal: true });
Image.compare.resolves({ equal: true, diffImage: { createBuffer: sandbox.stub() } });
RuntimeConfig.getInstance.returns({ tempOpts: { some: "opts" } });
const browser = await initBrowser_();

Expand All @@ -506,7 +506,7 @@ describe("assertView command", () => {
it("should compare a current image with a reference", async () => {
const config = mkConfig_({ getScreenshotPath: () => "/ref/path" });
const image = stubImage_();
Image.compare.resolves({ equal: true });
Image.compare.resolves({ equal: true, diffImage: { createBuffer: sandbox.stub() } });
temp.path.returns("/curr/path");
fs.readFile.withArgs("/ref/path").resolves("refPngBuffer");
ScreenShooter.prototype.capture.resolves(image);
Expand All @@ -525,7 +525,9 @@ describe("assertView command", () => {
});
fs.readFile.withArgs("/ref/path").resolves("refPngBuffer");
image.toPngBuffer.resolves("currPngBuffer");
Image.compare.withArgs("refPngBuffer", "currPngBuffer").resolves({ equal: true });
Image.compare
.withArgs("refPngBuffer", "currPngBuffer")
.resolves({ equal: true, diffImage: { createBuffer: sandbox.stub() } });
ScreenShooter.prototype.capture.resolves(image);

await fn(browser);
Expand Down Expand Up @@ -589,7 +591,7 @@ describe("assertView command", () => {

describe("if images are not equal", () => {
beforeEach(() => {
Image.compare.resolves({ equal: false });
Image.compare.resolves({ equal: false, diffImage: { createBuffer: sandbox.stub() } });
});

describe("assert refs", () => {
Expand All @@ -613,6 +615,7 @@ describe("assertView command", () => {
Image.compare.resolves({
equal: false,
metaInfo: { refImg: { size: { width: 300, height: 400 } } },
diffImage: { createBuffer: sandbox.stub() },
});

await fn(browser, "state");
Expand Down Expand Up @@ -664,7 +667,10 @@ describe("assertView command", () => {
});

it("should pass diff bounds to error", async () => {
Image.compare.resolves({ diffBounds: { left: 0, top: 0, right: 10, bottom: 10 } });
Image.compare.resolves({
diffBounds: { left: 0, top: 0, right: 10, bottom: 10 },
diffImage: { createBuffer: sandbox.stub() },
});
const browser = await initBrowser_();

await fn(browser);
Expand All @@ -675,7 +681,10 @@ describe("assertView command", () => {
});

it("should pass diff clusters to error", async () => {
Image.compare.resolves({ diffClusters: [{ left: 0, top: 0, right: 10, bottom: 10 }] });
Image.compare.resolves({
diffClusters: [{ left: 0, top: 0, right: 10, bottom: 10 }],
diffImage: { createBuffer: sandbox.stub() },
});
const browser = await initBrowser_();

await fn(browser);
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1 change: 1 addition & 0 deletions test/src/image.js
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Original file line number Diff line number Diff line change
Expand Up @@ -277,6 +277,7 @@ describe("Image", () => {
tolerance: 250,
antialiasingTolerance: 100500,
stopOnFirstFail: true,
createDiffImage: true,
});
});

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