pdf-visual-diff - npm Package Compare versions

Comparing version 0.12.0 to 0.13.0

.editorconfig

+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+end_of_line = lf
+
+[CHANGELOG.md]
+indent_size = false

CHANGELOG.md

 # Changelog
 
+## UNRELEASED
+
+### 🐛 Bug Fix
+
+- [PR#76](https://github.com/moshensky/pdf-visual-diff/pull/76) fix: remove new snapshot when existing snapshot matches
+
+## 0.12.0 / 2024-09-26
+
+### :tada: Enhancements
+
+- [PR#70](https://github.com/moshensky/pdf-visual-diff/pull/70): feat: add failOnMissingSnapshot to `comparePdfToSnapshot` options. If no snapshot exists:
+  - If `failOnMissingSnapshot` is `false` (default), the PDF is converted to an image,
+      saved as a new snapshot, and the function returns `true`.
+  - If `failOnMissingSnapshot` is `true`, the function returns `false` without creating a new snapshot.
+
 ## 0.11.1 / 2024-09-11
@@ -4,0 +19,0 @@

lib/compare-pdf-to-snapshot.d.ts

@@ -64,3 +64,2 @@ import { PdfToPngOptions } from './types';
 };
-export declare const snapshotsDirName = "__snapshots__";
 /**
@@ -94,1 +93,6 @@ * Compares a PDF to a persisted snapshot, with behavior for handling missing snapshots
 export declare function comparePdfToSnapshot(pdf: string | Buffer, snapshotDir: string, snapshotName: string, options?: CompareOptions): Promise<boolean>;
+export declare const SNAPSHOTS_DIR_NAME = "__snapshots__";
+/**
+ * @deprecated Use SNAPSHOTS_DIR_NAME instead.
+ */
+export declare const snapshotsDirName = "__snapshots__";

lib/compare-pdf-to-snapshot.js

 "use strict";
-var __rest = (this && this.__rest) || function (s, e) {
-    var t = {};
-    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
-        t[p] = s[p];
-    if (s != null && typeof Object.getOwnPropertySymbols === "function")
-        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
-            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
-                t[p[i]] = s[p[i]];
-        }
-    return t;
-};
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.snapshotsDirName = void 0;
+exports.snapshotsDirName = exports.SNAPSHOTS_DIR_NAME = void 0;
 exports.comparePdfToSnapshot = comparePdfToSnapshot;
-const path = require("path");
-const fs_1 = require("fs");
+const path = require("node:path");
+const promises_1 = require("node:fs/promises");
 const pdf2png_1 = require("./pdf2png/pdf2png");
 const compare_images_1 = require("./compare-images");
 const jimp_1 = require("jimp");
+const types_1 = require("./types");
 const imageUtils_1 = require("./imageUtils");
@@ -44,3 +34,2 @@ const colorToNum = {
 };
-exports.snapshotsDirName = '__snapshots__';
 /**
@@ -73,38 +62,75 @@ * Compares a PDF to a persisted snapshot, with behavior for handling missing snapshots
  */
-function comparePdfToSnapshot(pdf, snapshotDir, snapshotName, options) {
-    const _a = options || {}, { maskRegions = () => [], pdf2PngOptions, failOnMissingSnapshot = false } = _a, restOpts = __rest(_a, ["maskRegions", "pdf2PngOptions", "failOnMissingSnapshot"]);
-    const dir = path.join(snapshotDir, exports.snapshotsDirName);
-    if (!(0, fs_1.existsSync)(dir)) {
-        (0, fs_1.mkdirSync)(dir, { recursive: true });
+async function comparePdfToSnapshot(pdf, snapshotDir, snapshotName, options) {
+    const mergedOptions = mergeOptionsWithDefaults(options);
+    const snapshotContext = await createSnapshotContext(snapshotDir, snapshotName);
+    try {
+        // Check if snapshot exits and handle accordingly
+        await (0, promises_1.access)(snapshotContext.path);
+        return compareWithSnapshot(pdf, snapshotContext, mergedOptions);
     }
-    const snapshotPath = path.join(dir, snapshotName + '.png');
-    // If the snapshot doesn't exist
-    if (!(0, fs_1.existsSync)(snapshotPath)) {
-        // If we shouldn't generate a snapshot fail.
-        if (failOnMissingSnapshot) {
-            return Promise.resolve(false);
-        }
-        // Proceed with snapshot generation
-        return (0, pdf2png_1.pdf2png)(pdf, pdf2PngOptions)
-            .then(maskImgWithRegions(maskRegions))
-            .then((0, imageUtils_1.writeImages)(snapshotPath))
-            .then(() => true);
+    catch (_a) {
+        return handleMissingSnapshot(pdf, snapshotContext, mergedOptions);
     }
-    // If the snapshot exists, perform comparison
-    return (0, pdf2png_1.pdf2png)(pdf, pdf2PngOptions)
-        .then(maskImgWithRegions(maskRegions))
-        .then((images) => (0, compare_images_1.compareImages)(snapshotPath, images, restOpts).then((result) => {
-        const diffSnapshotPath = path.join(dir, snapshotName + '.diff.png');
-        if (result.equal) {
-            if ((0, fs_1.existsSync)(diffSnapshotPath)) {
-                (0, fs_1.unlinkSync)(diffSnapshotPath);
-            }
-            return true;
-        }
-        const newSnapshotPath = path.join(dir, snapshotName + '.new.png');
-        return (0, imageUtils_1.writeImages)(newSnapshotPath)(images)
-            .then(() => (0, imageUtils_1.writeImages)(diffSnapshotPath)(result.diffs.map((x) => x.diff)))
-            .then(() => false);
-    }));
 }
+function mergeOptionsWithDefaults(options) {
+    var _a, _b, _c, _d;
+    return {
+        maskRegions: (_a = options === null || options === void 0 ? void 0 : options.maskRegions) !== null && _a !== void 0 ? _a : (() => []),
+        pdf2PngOptions: (_b = options === null || options === void 0 ? void 0 : options.pdf2PngOptions) !== null && _b !== void 0 ? _b : { dpi: types_1.Dpi.High },
+        failOnMissingSnapshot: (_c = options === null || options === void 0 ? void 0 : options.failOnMissingSnapshot) !== null && _c !== void 0 ? _c : false,
+        tolerance: (_d = options === null || options === void 0 ? void 0 : options.tolerance) !== null && _d !== void 0 ? _d : 0,
+    };
+}
+exports.SNAPSHOTS_DIR_NAME = '__snapshots__';
+/**
+ * @deprecated Use SNAPSHOTS_DIR_NAME instead.
+ */
+exports.snapshotsDirName = exports.SNAPSHOTS_DIR_NAME;
+/** Generates the snapshot context and creates the folder if it doesn’t already exist. */
+async function createSnapshotContext(snapshotDir, snapshotName) {
+    const dirPath = path.join(snapshotDir, exports.SNAPSHOTS_DIR_NAME);
+    try {
+        await (0, promises_1.access)(dirPath);
+    }
+    catch (_a) {
+        await (0, promises_1.mkdir)(dirPath, { recursive: true });
+    }
+    const basePath = path.join(dirPath, snapshotName);
+    return {
+        name: snapshotName,
+        dirPath,
+        path: `${basePath}.png`,
+        diffPath: `${basePath}.diff.png`,
+        newPath: `${basePath}.new.png`,
+    };
+}
+async function handleMissingSnapshot(pdf, snapshotContext, { failOnMissingSnapshot, maskRegions, pdf2PngOptions }) {
+    if (failOnMissingSnapshot) {
+        return false;
+    }
+    // Generate snapshot if missing
+    const images = await (0, pdf2png_1.pdf2png)(pdf, pdf2PngOptions).then(maskImgWithRegions(maskRegions));
+    await (0, imageUtils_1.writeImages)(snapshotContext.path)(images);
+    return true;
+}
+async function compareWithSnapshot(pdf, snapshotContext, { maskRegions, pdf2PngOptions, tolerance }) {
+    const images = await (0, pdf2png_1.pdf2png)(pdf, pdf2PngOptions).then(maskImgWithRegions(maskRegions));
+    const result = await (0, compare_images_1.compareImages)(snapshotContext.path, images, { tolerance });
+    if (result.equal) {
+        await removeIfExists(snapshotContext.diffPath);
+        await removeIfExists(snapshotContext.newPath);
+        return true;
+    }
+    await (0, imageUtils_1.writeImages)(snapshotContext.newPath)(images);
+    await (0, imageUtils_1.writeImages)(snapshotContext.diffPath)(result.diffs.map((x) => x.diff));
+    return false;
+}
+async function removeIfExists(filePath) {
+    try {
+        await (0, promises_1.unlink)(filePath);
+    }
+    catch (_a) {
+        // File doesn't exist, no need to remove
+    }
+}
 //# sourceMappingURL=compare-pdf-to-snapshot.js.map

lib/compare-pdf-to-snapshot.js.map

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lib/compare-pdf-to-snapshot.test.js

@@ -5,43 +5,71 @@ "use strict";
 const assert = require("node:assert/strict");
+const node_path_1 = require("node:path");
+const promises_1 = require("node:fs/promises");
 const jimp_1 = require("jimp");
 const compare_pdf_to_snapshot_1 = require("./compare-pdf-to-snapshot");
-const path_1 = require("path");
-const fs_1 = require("fs");
 const compare_images_1 = require("./compare-images");
-const fs = require("fs/promises");
 const types_1 = require("./types");
-const testDataDir = (0, path_1.join)(__dirname, './test-data');
-const pdfs = (0, path_1.join)(testDataDir, 'pdfs');
-const singlePageSmallPdfPath = (0, path_1.join)(pdfs, 'single-page-small.pdf');
-const singlePagePdfPath = (0, path_1.join)(pdfs, 'single-page.pdf');
-const twoPagePdfPath = (0, path_1.join)(pdfs, 'two-page.pdf');
+const testDataDir = (0, node_path_1.join)(__dirname, './test-data');
+const pdfs = (0, node_path_1.join)(testDataDir, 'pdfs');
+const singlePageSmallPdfPath = (0, node_path_1.join)(pdfs, 'single-page-small.pdf');
+const singlePagePdfPath = (0, node_path_1.join)(pdfs, 'single-page.pdf');
+const twoPagePdfPath = (0, node_path_1.join)(pdfs, 'two-page.pdf');
+async function removeIfExists(filePath) {
+    try {
+        await (0, promises_1.unlink)(filePath);
+    }
+    catch (_a) {
+        // File doesn't exist, no need to remove
+    }
+}
+async function fileExists(filePath) {
+    try {
+        await (0, promises_1.access)(filePath);
+        return true;
+    }
+    catch (_a) {
+        return false;
+    }
+}
 (0, node_test_1.describe)('comparePdfToSnapshot()', () => {
-    (0, node_test_1.it)('should create new snapshot, when one does not exists', () => {
+    (0, node_test_1.it)('should create new snapshot, when one does not exists', async () => {
         const snapshotName = 'single-page-small';
-        const snapshotPath = (0, path_1.join)(__dirname, compare_pdf_to_snapshot_1.snapshotsDirName, snapshotName + '.png');
-        if ((0, fs_1.existsSync)(snapshotPath)) {
-            (0, fs_1.unlinkSync)(snapshotPath);
-        }
-        return (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName).then((x) => {
-            assert.strictEqual(x, true);
-            assert.strictEqual((0, fs_1.existsSync)(snapshotPath), true);
-            (0, fs_1.unlinkSync)(snapshotPath);
-        });
+        const snapshotPath = (0, node_path_1.join)(__dirname, compare_pdf_to_snapshot_1.SNAPSHOTS_DIR_NAME, `${snapshotName}.png`);
+        await removeIfExists(snapshotPath);
+        const isEqual = await (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName);
+        assert.strictEqual(isEqual, true);
+        assert.strictEqual(await fileExists(snapshotPath), true);
+        await removeIfExists(snapshotPath);
     });
-    (0, node_test_1.it)('should fail and create diff with new version', () => (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePagePdfPath, __dirname, 'two-page').then((x) => {
-        assert.strictEqual(x, false);
-        const snapshotDiffPath = (0, path_1.join)(__dirname, compare_pdf_to_snapshot_1.snapshotsDirName, 'two-page.diff.png');
-        assert.strictEqual((0, fs_1.existsSync)(snapshotDiffPath), true, 'diff is not created');
-        const snapshotNewPath = (0, path_1.join)(__dirname, compare_pdf_to_snapshot_1.snapshotsDirName, 'two-page.new.png');
-        assert.strictEqual((0, fs_1.existsSync)(snapshotNewPath), true, 'new is not created');
-    }));
+    (0, node_test_1.it)('should fail and create diff with new version', async () => {
+        const isEqual = await (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePagePdfPath, __dirname, 'two-page');
+        assert.strictEqual(isEqual, false);
+        const snapshotDiffPath = (0, node_path_1.join)(__dirname, compare_pdf_to_snapshot_1.SNAPSHOTS_DIR_NAME, 'two-page.diff.png');
+        assert.strictEqual(await fileExists(snapshotDiffPath), true, 'diff is not created');
+        const snapshotNewPath = (0, node_path_1.join)(__dirname, compare_pdf_to_snapshot_1.SNAPSHOTS_DIR_NAME, 'two-page.new.png');
+        assert.strictEqual(await fileExists(snapshotNewPath), true, 'new is not created');
+    });
+    (0, node_test_1.it)('should remove diff and new snapshots when matches with reference snapshot', async () => {
+        const snapshotName = 'should-remove-diff-and-new';
+        const snapshotBase = (0, node_path_1.join)(__dirname, compare_pdf_to_snapshot_1.SNAPSHOTS_DIR_NAME, snapshotName);
+        const snapshotPathDiff = `${snapshotBase}.diff.png`;
+        const snapshotPathNew = `${snapshotBase}.new.png`;
+        await removeIfExists(snapshotPathDiff);
+        await removeIfExists(snapshotPathNew);
+        await new jimp_1.Jimp({ width: 100, height: 100 }).write(snapshotPathDiff);
+        await new jimp_1.Jimp({ width: 100, height: 100 }).write(snapshotPathNew);
+        const isEqual = await (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName);
+        assert.strictEqual(isEqual, true);
+        assert.strictEqual(await fileExists(snapshotPathDiff), false, 'Snapshot diff should not exists.');
+        assert.strictEqual(await fileExists(snapshotPathNew), false, 'Snapshot new should not exists.');
+    });
     (0, node_test_1.describe)('should pass', () => {
         (0, node_test_1.it)('should pass', () => (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(twoPagePdfPath, __dirname, 'two-page-success').then((x) => assert.strictEqual(x, true)));
-        const testDataDir = (0, path_1.join)(__dirname, './test-data');
-        const pdfs = (0, path_1.join)(testDataDir, 'pdfs');
-        const singlePageSmall = (0, path_1.join)(pdfs, 'single-page-small.pdf');
-        const singlePage = (0, path_1.join)(pdfs, 'single-page.pdf');
-        const tamReview = (0, path_1.join)(pdfs, 'TAMReview.pdf');
-        const twoPage = (0, path_1.join)(pdfs, 'two-page.pdf');
-        const expectedDir = (0, path_1.join)(testDataDir, 'pdf2png-expected');
+        const testDataDir = (0, node_path_1.join)(__dirname, './test-data');
+        const pdfs = (0, node_path_1.join)(testDataDir, 'pdfs');
+        const singlePageSmall = (0, node_path_1.join)(pdfs, 'single-page-small.pdf');
+        const singlePage = (0, node_path_1.join)(pdfs, 'single-page.pdf');
+        const tamReview = (0, node_path_1.join)(pdfs, 'TAMReview.pdf');
+        const twoPage = (0, node_path_1.join)(pdfs, 'two-page.pdf');
+        const expectedDir = (0, node_path_1.join)(testDataDir, 'pdf2png-expected');
         const testPdf2png = (pdf, expectedImageName, options) => {
@@ -59,3 +87,3 @@ return (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(pdf, expectedDir, expectedImageName, options).then((x) => {
         (0, node_test_1.it)('two-page.pdf', () => testPdf2png(twoPage, 'two-page'));
-        (0, node_test_1.it)('two-page.pdf buffer', () => fs.readFile(twoPage).then((x) => testPdf2png(x, 'two-page')));
+        (0, node_test_1.it)('two-page.pdf buffer', () => (0, promises_1.readFile)(twoPage).then((x) => testPdf2png(x, 'two-page')));
     });
@@ -124,56 +152,45 @@ (0, node_test_1.describe)('maskRegions', () => {
         }).then((x) => assert.strictEqual(x, true)));
-        (0, node_test_1.it)('should create initial masked image', () => {
+        (0, node_test_1.it)('should create initial masked image', async () => {
             const snapshotName = 'initial-rectangle-masks';
-            const snapshotPath = (0, path_1.join)(__dirname, compare_pdf_to_snapshot_1.snapshotsDirName, snapshotName + '.png');
-            const expectedImagePath = (0, path_1.join)(__dirname, './test-data', 'expected-initial-rectangle-masks.png');
-            if ((0, fs_1.existsSync)(snapshotPath)) {
-                (0, fs_1.unlinkSync)(snapshotPath);
-            }
-            return (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePagePdfPath, __dirname, snapshotName, opts)
-                .then((x) => assert.strictEqual(x, true))
-                .then(() => jimp_1.Jimp.read(snapshotPath))
-                .then((x) => x)
-                .then((img) => (0, compare_images_1.compareImages)(expectedImagePath, [img], { tolerance: 0 }).then((x) => assert.strictEqual(x.equal, true, 'generated initial rectangle masks does not match expected one')))
-                .then(() => (0, fs_1.unlinkSync)(snapshotPath));
+            const snapshotPath = (0, node_path_1.join)(__dirname, compare_pdf_to_snapshot_1.SNAPSHOTS_DIR_NAME, snapshotName + '.png');
+            const expectedImagePath = (0, node_path_1.join)(__dirname, './test-data', 'expected-initial-rectangle-masks.png');
+            await removeIfExists(snapshotPath);
+            const isEqual = await (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePagePdfPath, __dirname, snapshotName, opts);
+            assert.strictEqual(isEqual, true);
+            const img = (await jimp_1.Jimp.read(snapshotPath));
+            const { equal } = await (0, compare_images_1.compareImages)(expectedImagePath, [img], { tolerance: 0 });
+            assert.strictEqual(equal, true, 'Rectangle masks does not match expected one');
+            await removeIfExists(snapshotPath);
         });
     });
     (0, node_test_1.describe)('when reference snapshot does not exist', () => {
-        (0, node_test_1.it)('should be created when `failOnMissingSnapshot` is not set', () => {
+        (0, node_test_1.it)('should be created when `failOnMissingSnapshot` is not set', async () => {
             const snapshotName = 'allow-create-snapshot-when-failOnMissingSnapshot-is-not-set';
-            const snapshotPath = (0, path_1.join)(__dirname, compare_pdf_to_snapshot_1.snapshotsDirName, snapshotName + '.png');
-            if ((0, fs_1.existsSync)(snapshotPath)) {
-                (0, fs_1.unlinkSync)(snapshotPath);
-            }
-            return (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName).then((x) => {
-                assert.strictEqual(x, true);
-                assert.strictEqual((0, fs_1.existsSync)(snapshotPath), true, 'Snapshot should be created');
-                (0, fs_1.unlinkSync)(snapshotPath);
-            });
+            const snapshotPath = (0, node_path_1.join)(__dirname, compare_pdf_to_snapshot_1.SNAPSHOTS_DIR_NAME, snapshotName + '.png');
+            await removeIfExists(snapshotPath);
+            const isEqual = await (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName);
+            assert.strictEqual(isEqual, true);
+            assert.strictEqual(await fileExists(snapshotPath), true, 'Snapshot should be created');
+            removeIfExists(snapshotPath);
         });
-        (0, node_test_1.it)('should be created when `failOnMissingSnapshot` is set to `false`', () => {
+        (0, node_test_1.it)('should be created when `failOnMissingSnapshot` is set to `false`', async () => {
             const snapshotName = 'allow-create-snapshot-when-failOnMissingSnapshot-is-set-to-false';
-            const snapshotPath = (0, path_1.join)(__dirname, compare_pdf_to_snapshot_1.snapshotsDirName, snapshotName + '.png');
-            if ((0, fs_1.existsSync)(snapshotPath)) {
-                (0, fs_1.unlinkSync)(snapshotPath);
-            }
-            return (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName, {
+            const snapshotPath = (0, node_path_1.join)(__dirname, compare_pdf_to_snapshot_1.SNAPSHOTS_DIR_NAME, snapshotName + '.png');
+            await removeIfExists(snapshotPath);
+            const isEqual = await (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName, {
                 failOnMissingSnapshot: false,
-            }).then((x) => {
-                assert.strictEqual(x, true);
-                assert.strictEqual((0, fs_1.existsSync)(snapshotPath), true, 'Snapshot should be created');
-                (0, fs_1.unlinkSync)(snapshotPath);
             });
+            assert.strictEqual(isEqual, true);
+            assert.strictEqual(await fileExists(snapshotPath), true, 'Snapshot should be created');
+            await removeIfExists(snapshotPath);
         });
-        (0, node_test_1.it)('should not be created and return `false` when `failOnMissingSnapshot` is set to `true`', () => {
+        (0, node_test_1.it)('should not be created and return `false` when `failOnMissingSnapshot` is set to `true`', async () => {
             const snapshotName = 'fail-on-missing-snapshot-when-failOnMissingSnapshot-is-set-to-true';
-            const snapshotPath = (0, path_1.join)(__dirname, compare_pdf_to_snapshot_1.snapshotsDirName, snapshotName + '.png');
-            if ((0, fs_1.existsSync)(snapshotPath)) {
-                (0, fs_1.unlinkSync)(snapshotPath);
-            }
-            return (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName, {
+            const snapshotPath = (0, node_path_1.join)(__dirname, compare_pdf_to_snapshot_1.SNAPSHOTS_DIR_NAME, snapshotName + '.png');
+            await removeIfExists(snapshotPath);
+            const isEqual = await (0, compare_pdf_to_snapshot_1.comparePdfToSnapshot)(singlePageSmallPdfPath, __dirname, snapshotName, {
                 failOnMissingSnapshot: true,
-            }).then((x) => {
-                assert.strictEqual(x, false);
-                assert.strictEqual((0, fs_1.existsSync)(snapshotPath), false, 'Snapshot should not be created');
             });
+            assert.strictEqual(isEqual, false);
+            assert.strictEqual(await fileExists(snapshotPath), false, 'Snapshot should not be created');
         });
@@ -180,0 +197,0 @@ });

lib/compare-pdf-to-snapshot.test.js.map

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lib/pdf2png/pdf2png.js

@@ -9,3 +9,2 @@ "use strict";
 const conversions_1 = require("../conversions");
-const createCanvasContext_1 = require("./createCanvasContext");
 // pdfjs location
@@ -41,18 +40,17 @@ const PDFJS_DIR = path.join(path.dirname(require.resolve('pdfjs-dist')), '..');
         const images = [];
-        const canvas = (0, createCanvasContext_1.createCanvasContext)();
         const totalPages = pdfDocument.numPages;
         for (let idx = 1; idx <= totalPages; idx += 1) {
             const page = await pdfDocument.getPage(idx);
+            const canvasFactory = pdfDocument.canvasFactory;
             const viewport = getPageViewPort(page, dpi);
-            canvas.resize(viewport.width, viewport.height);
+            // @ts-expect-error unknown method on Object
+            const canvasAndContext = canvasFactory.create(viewport.width, viewport.height);
             const renderParameters = {
-                // @ts-expect-error type mismatch between web and node.js canvas
-                canvasContext: canvas.context,
+                canvasContext: canvasAndContext.context,
                 viewport,
             };
             await page.render(renderParameters).promise;
+            images.push(toImage(canvasAndContext.canvas));
             page.cleanup();
-            images.push(toImage(canvas));
         }
-        canvas.dispose();
         return toJimpInstances(images);
@@ -69,15 +67,4 @@ };
     const renderPdfPages = mkPdfPagesRenderer(pdfDocument, opts.dpi);
-    /**
-     * For faster processing, we want to use `Jimp.fromBitmap`. However, it
-     * internally uses `instanceof`, which doesn't work well with Jest due to
-     * [Jest globals differing from Node globals](https://github.com/jestjs/jest/issues/2549).
-     */
-    // @ts-expect-error we have to assert if running in jest env
-    if (typeof jest !== 'undefined') {
-        return renderPdfPages((canvas) => canvas.toPngBuffer(), (images) => Promise.all(images.map((x) => jimp_1.Jimp.read(x).then((x) => x))));
-    }
-    else {
-        return renderPdfPages((canvas) => jimp_1.Jimp.fromBitmap(canvas.toImageData()), (images) => Promise.resolve(images));
-    }
+    return renderPdfPages((canvas) => canvas.toBuffer('image/png'), (images) => Promise.all(images.map((x) => jimp_1.Jimp.read(x).then((x) => x))));
 }
 //# sourceMappingURL=pdf2png.js.map

lib/pdf2png/pdf2png.js.map

@@ -1,1 +0,1 @@
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package.json

 {
   "name": "pdf-visual-diff",
-  "version": "0.12.0",
+  "version": "0.13.0",
   "description": "Visual Regression Testing for PDFs in JavaScript",
@@ -49,7 +49,7 @@ "bin": "./lib/cli/index.js",
     "jimp": "^1.6.0",
-    "pdfjs-dist": "^4.6.82",
+    "pdfjs-dist": "^4.8.69",
     "yargs": "^17.7.2"
   },
   "devDependencies": {
-    "@eslint/js": "^9.10.0",
+    "@eslint/js": "^9.15.0",
     "@types/eslint__js": "^8.42.3",
@@ -59,11 +59,11 @@ "@types/glob": "^8.1.0",
     "@types/yargs": "^17.0.33",
-    "eslint": "^9.10.0",
-    "eslint-plugin-tsdoc": "^0.3.0",
+    "eslint": "^9.15.0",
+    "eslint-plugin-tsdoc": "^0.4.0",
     "jest": "^29.7.0",
-    "prettier": "^3.3.3",
+    "prettier": "^3.4.1",
     "ts-node": "^10.9.2",
-    "typedoc": "^0.26.7",
+    "typedoc": "^0.27.0",
     "typescript": "^5.6.2",
-    "typescript-eslint": "^8.5.0"
+    "typescript-eslint": "^8.16.0"
   }
 }

README.md

@@ -9,2 +9,4 @@ # Test Visual Regression in PDFs
 
+> [API Documentation](https://moshensky.github.io/pdf-visual-diff)
+
 ## Installation
@@ -25,3 +27,3 @@
 
-This package exports a single function, [comparePdfToSnapshot](https://moshensky.github.io/pdf-visual-diff/functions/comparePdfToSnapshot.html), with the following signature:
+This package exports [comparePdfToSnapshot](https://moshensky.github.io/pdf-visual-diff/functions/comparePdfToSnapshot.html) function, with the following signature:
 
@@ -37,6 +39,9 @@ ```ts
 
-It compares a PDF to a persisted snapshot. If a snapshot does not exists, one is created.
-When the function is executed, it has following **side effects**:
+Compares a PDF to a persisted snapshot, with behavior for handling missing snapshots controlled by the `failOnMissingSnapshot` option.
 
-- If a previous snapshot file does not exist, the PDF is converted to an image, saved as a snapshot, and the function returns `true`.
+The function has the following **side effects**:
+
+- If no snapshot exists:
+  - If `failOnMissingSnapshot` is `false` (default), the PDF is converted to an image, saved as a new snapshot, and the function returns `true`.
+  - If `failOnMissingSnapshot` is `true`, the function returns `false` without creating a new snapshot.
 - If a snapshot exists, the PDF is converted to an image and compared to the snapshot:
@@ -46,3 +51,3 @@ - If they differ, the function returns `false` and creates two additional images next to the snapshot: one with the suffix `new` (the current view of the PDF as an image) and one with the suffix `diff` (showing the difference between the snapshot and the `new` image).
 
-Returns a promise that resolves to `true` if the PDF matches the snapshot or if a new snapshot is created, and `false` if the PDF differs from the snapshot.
+Returns a promise that resolves to `true` if the PDF matches the snapshot or if the behavior for a missing snapshot is configured to allow it. Returns `false` if the PDF differs from the snapshot or if `failOnMissingSnapshot` is `true` and the snapshot is missing.
 
@@ -49,0 +54,0 @@ For further details and [configuration options](https://moshensky.github.io/pdf-visual-diff/types/CompareOptions.html), please refer to the [API Documentation](https://moshensky.github.io/pdf-visual-diff).

lib/pdf2png/createCanvasContext.d.ts

-import * as Canvas from 'canvas';
-export type CanvasContextManager = {
-    context: Canvas.CanvasRenderingContext2D;
-    resize: (width: number, height: number) => void;
-    toPngBuffer: () => Buffer;
-    toImageData: () => Canvas.ImageData;
-    dispose: () => void;
-};
-export declare function createCanvasContext(): CanvasContextManager;

lib/pdf2png/createCanvasContext.js

-"use strict";
-Object.defineProperty(exports, "__esModule", { value: true });
-exports.createCanvasContext = createCanvasContext;
-const Canvas = require("canvas");
-const assert = require("node:assert");
-function createCanvasContext() {
-    let canvas = Canvas.createCanvas(1, 1);
-    let context = canvas.getContext('2d');
-    return {
-        context,
-        resize: (width, height) => {
-            assert(width > 0 && height > 0, 'Invalid canvas dimensions');
-            canvas.width = width;
-            canvas.height = height;
-        },
-        toPngBuffer: () => canvas.toBuffer('image/png'),
-        toImageData: () => context.getImageData(0, 0, canvas.width, canvas.height),
-        dispose: () => {
-            canvas.width = 0;
-            canvas.height = 0;
-            // Nullify for garbage collection
-            canvas = null;
-            context = null;
-        },
-    };
-}
-//# sourceMappingURL=createCanvasContext.js.map

lib/pdf2png/createCanvasContext.js.map

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New alerts

Filesystem access

Supply chain risk

Accesses the file system, and could potentially read sensitive data.

Found 2 instances in 1 package

Fixed alerts

Filesystem access

Supply chain risk

Accesses the file system, and could potentially read sensitive data.

Found 2 instances in 1 package

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

131839

1.41%

Number of lines in readme file

189

2.72%

Number of low supply chain risk alerts

3

-57.14%

Worsened metrics

Number of package files

72

-2.7%

Lines of code

1065

-0.09%

Dependency changes

• Updated

  pdfjs-dist@^4.8.69