Release v0.34.2

This also ensures we handle scRGB correctly, see:
e9c5a31552

docs/astro.config.mjs

@@ -70,10 +70,10 @@ export default defineConfig({
         { label: 'Performance', slug: 'performance' },
         { label: 'Changelog', slug: 'changelog' }
       ],
-      social: {
+      social: [
-        openCollective: 'https://opencollective.com/libvips',
+        { icon: 'openCollective', label: 'Open Collective', href: 'https://opencollective.com/libvips' },
-        github: 'https://github.com/lovell/sharp'
+        { icon: 'github', label: 'GitHub', href: 'https://github.com/lovell/sharp' }
-      }
+      ]
     })
   ]
 });

docs/package.json

@@ -11,7 +11,7 @@
     "astro": "astro"
   },
   "dependencies": {
-    "@astrojs/starlight": "^0.32.3",
+    "@astrojs/starlight": "^0.34.3",
-    "astro": "^5.5.3"
+    "astro": "^5.7.13"
   }
 }

docs/src/content/docs/api-output.md

@@ -626,6 +626,9 @@ Use these AVIF options for output image.
 AVIF image sequences are not supported.
 Prebuilt binaries support a bitdepth of 8 only.
 
+This feature is experimental on the Windows ARM64 platform
+and requires a CPU with ARM64v8.4 or later.
+
 
 **Throws**:
 

docs/src/content/docs/changelog.md

@@ -6,22 +6,32 @@ title: Changelog
 
 Requires libvips v8.16.1
 
-### v0.34.2 - TBD
+### v0.34.2 - 20th May 2025
 
 * Ensure animated GIF to WebP conversion retains loop (regression in 0.34.0).
   [#3394](https://github.com/lovell/sharp/issues/3394)
 
 * Ensure `pdfBackground` constructor property is used.
   [#4207](https://github.com/lovell/sharp/pull/4207)
+  [#4398](https://github.com/lovell/sharp/issues/4398)
 
-* Add support for prebuilt Windows ARM64 binaries.
+* Add experimental support for prebuilt Windows ARM64 binaries.
   [#4375](https://github.com/lovell/sharp/pull/4375)
   [@hans00](https://github.com/hans00)
 
+* Ensure resizing with a `fit` of `contain` supports multiple alpha channels.
+  [#4382](https://github.com/lovell/sharp/issues/4382)
+
+* TypeScript: Ensure `metadata` response more closely matches reality.
+  [#4383](https://github.com/lovell/sharp/issues/4383)
+
 * TypeScript: Ensure `smartDeblock` property is included in WebP definition.
   [#4387](https://github.com/lovell/sharp/pull/4387)
   [@Stephen-X](https://github.com/Stephen-X)
 
+* Ensure support for wide-character filenames on Windows (regression in 0.34.0).
+  [#4391](https://github.com/lovell/sharp/issues/4391)
+
 ### v0.34.1 - 7th April 2025
 
 * TypeScript: Ensure new `autoOrient` property is optional.

docs/src/content/docs/install.md

@@ -21,7 +21,7 @@ pnpm add sharp
 ```
 
 When using `pnpm`, you may need to add `sharp` to
-[ignoredBuiltDependencies](https://pnpm.io/package_json#pnpmignoredbuiltdependencies)
+[ignoredBuiltDependencies](https://pnpm.io/settings#ignoredbuiltdependencies)
 to silence warnings.
 
 ```sh
@@ -53,7 +53,7 @@ Ready-compiled sharp and libvips binaries are provided for use on the most commo
 * Linux x64 (glibc >= 2.26, musl >= 1.2.2, CPU with SSE4.2)
 * Windows x64
 * Windows x86
-* Windows ARM64
+* Windows ARM64 (experimental, CPU with ARMv8.4 required for all features)
 
 This provides support for the
 JPEG, PNG, WebP, AVIF (limited to 8-bit depth), TIFF, GIF and SVG (input) image formats.
@@ -94,7 +94,7 @@ Use the [supportedArchitectures](https://yarnpkg.com/configuration/yarnrc#suppor
 
 ### pnpm v8+
 
-Use the [supportedArchitectures](https://pnpm.io/package_json#pnpmsupportedarchitectures) configuration.
+Use the [supportedArchitectures](https://pnpm.io/settings#supportedarchitectures) configuration.
 
 ## Custom libvips
 
@@ -134,7 +134,7 @@ npm install --save node-addon-api node-gyp
 ```
 
 When using `pnpm`, you may need to add `sharp` to
-[onlyBuiltDependencies](https://pnpm.io/package_json#pnpmonlybuiltdependencies)
+[onlyBuiltDependencies](https://pnpm.io/settings#onlybuiltdependencies)
 to ensure the installation script can be run.
 
 For cross-compiling, the `--platform`, `--arch` and `--libc` npm flags

lib/index.d.ts

@@ -1146,13 +1146,13 @@ declare namespace sharp {
         /** Number value of the EXIF Orientation header, if present */
         orientation?: number | undefined;
         /** Name of decoder used to decompress image data e.g. jpeg, png, webp, gif, svg */
-        format?: keyof FormatEnum | undefined;
+        format: keyof FormatEnum;
         /** Total size of image in bytes, for Stream and Buffer input only */
         size?: number | undefined;
         /** Number of pixels wide (EXIF orientation is not taken into consideration) */
-        width?: number | undefined;
+        width: number;
         /** Number of pixels high (EXIF orientation is not taken into consideration) */
-        height?: number | undefined;
+        height: number;
         /** Any changed metadata after the image orientation is applied. */
         autoOrient: {
             /** Number of pixels wide (EXIF orientation is taken into consideration) */
@@ -1161,19 +1161,19 @@ declare namespace sharp {
             height: number;
         };
         /** Name of colour space interpretation */
-        space?: keyof ColourspaceEnum | undefined;
+        space: keyof ColourspaceEnum;
         /** Number of bands e.g. 3 for sRGB, 4 for CMYK */
-        channels?: Channels | undefined;
+        channels: Channels;
         /** Name of pixel depth format e.g. uchar, char, ushort, float ... */
-        depth?: string | undefined;
+        depth: keyof DepthEnum;
         /** Number of pixels per inch (DPI), if present */
         density?: number | undefined;
         /** String containing JPEG chroma subsampling, 4:2:0 or 4:4:4 for RGB, 4:2:0:4 or 4:4:4:4 for CMYK */
         chromaSubsampling?: string | undefined;
         /** Boolean indicating whether the image is interlaced using a progressive scan */
-        isProgressive?: boolean | undefined;
+        isProgressive: boolean;
         /** Boolean indicating whether the image is palette-based (GIF, PNG). */
-        isPalette?: boolean | undefined;
+        isPalette: boolean;
         /** Number of bits per sample for each channel (GIF, PNG). */
         bitsPerSample?: number | undefined;
         /** Number of pages/frames contained within the image, with support for TIFF, HEIF, PDF, animated GIF and animated WebP */
@@ -1187,9 +1187,9 @@ declare namespace sharp {
         /**  Number of the primary page in a HEIF image */
         pagePrimary?: number | undefined;
         /** Boolean indicating the presence of an embedded ICC profile */
-        hasProfile?: boolean | undefined;
+        hasProfile: boolean;
         /** Boolean indicating the presence of an alpha transparency channel */
-        hasAlpha?: boolean | undefined;
+        hasAlpha: boolean;
         /** Buffer containing raw EXIF data, if present */
         exif?: Buffer | undefined;
         /** Buffer containing raw ICC profile data, if present */
@@ -1745,11 +1745,38 @@ declare namespace sharp {
     }
 
     interface ColourspaceEnum {
-        multiband: string;
         'b-w': string;
-        bw: string;
+        cmc: string;
         cmyk: string;
+        fourier: string;
+        grey16: string;
+        histogram: string;
+        hsv: string;
+        lab: string;
+        labq: string;
+        labs: string;
+        lch: string;
+        matrix: string;
+        multiband: string;
+        rgb: string;
+        rgb16: string;
+        scrgb: string;
         srgb: string;
+        xyz: string;
+        yxy: string;
+    }
+
+    interface DepthEnum {
+        char: string;
+        complex: string;
+        double: string;
+        dpcomplex: string;
+        float: string;
+        int: string;
+        short: string;
+        uchar: string;
+        uint: string;
+        ushort: string;
     }
 
     type FailOnOptions = 'none' | 'truncated' | 'error' | 'warning';
@@ -1818,6 +1845,7 @@ declare namespace sharp {
     interface FormatEnum {
         avif: AvailableFormatInfo;
         dz: AvailableFormatInfo;
+        exr: AvailableFormatInfo;
         fits: AvailableFormatInfo;
         gif: AvailableFormatInfo;
         heif: AvailableFormatInfo;
@@ -1831,6 +1859,7 @@ declare namespace sharp {
         pdf: AvailableFormatInfo;
         png: AvailableFormatInfo;
         ppm: AvailableFormatInfo;
+        rad: AvailableFormatInfo;
         raw: AvailableFormatInfo;
         svg: AvailableFormatInfo;
         tiff: AvailableFormatInfo;

lib/output.js

@@ -1019,6 +1019,9 @@ function tiff (options) {
  * AVIF image sequences are not supported.
  * Prebuilt binaries support a bitdepth of 8 only.
  *
+ * This feature is experimental on the Windows ARM64 platform
+ * and requires a CPU with ARM64v8.4 or later.
+ *
  * @example
  * const data = await sharp(input)
  *   .avif({ effort: 2 })

npm/darwin-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-darwin-arm64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with macOS 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/darwin-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-darwin-x64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with macOS x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/linux-arm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-arm",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Linux (glibc) ARM (32-bit)",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/linux-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-arm64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Linux (glibc) 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/linux-ppc64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-ppc64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Linux (glibc) ppc64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/linux-s390x/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-s390x",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Linux (glibc) s390x",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/linux-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-x64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Linux (glibc) x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/linuxmusl-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linuxmusl-arm64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Linux (musl) 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/linuxmusl-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linuxmusl-x64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Linux (musl) x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "private": "true",
   "workspaces": [
     "darwin-arm64",

npm/wasm32/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-wasm32",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with wasm32",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -31,7 +31,7 @@
     "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
   },
   "dependencies": {
-    "@emnapi/runtime": "^1.4.0"
+    "@emnapi/runtime": "^1.4.3"
   },
   "cpu": [
     "wasm32"

npm/win32-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-win32-arm64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Windows 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/win32-ia32/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-win32-ia32",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Windows x86 (32-bit)",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

npm/win32-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-win32-x64",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "description": "Prebuilt sharp for use with Windows x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",

package.json

@@ -1,7 +1,7 @@
 {
   "name": "sharp",
   "description": "High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images",
-  "version": "0.34.1",
+  "version": "0.34.2",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
   "contributors": [
@@ -138,12 +138,12 @@
   ],
   "dependencies": {
     "color": "^4.2.3",
-    "detect-libc": "^2.0.3",
+    "detect-libc": "^2.0.4",
-    "semver": "^7.7.1"
+    "semver": "^7.7.2"
   },
   "optionalDependencies": {
-    "@img/sharp-darwin-arm64": "0.34.1",
+    "@img/sharp-darwin-arm64": "0.34.2",
-    "@img/sharp-darwin-x64": "0.34.1",
+    "@img/sharp-darwin-x64": "0.34.2",
     "@img/sharp-libvips-darwin-arm64": "1.1.0",
     "@img/sharp-libvips-darwin-x64": "1.1.0",
     "@img/sharp-libvips-linux-arm": "1.1.0",
@@ -153,19 +153,19 @@
     "@img/sharp-libvips-linux-x64": "1.1.0",
     "@img/sharp-libvips-linuxmusl-arm64": "1.1.0",
     "@img/sharp-libvips-linuxmusl-x64": "1.1.0",
-    "@img/sharp-linux-arm": "0.34.1",
+    "@img/sharp-linux-arm": "0.34.2",
-    "@img/sharp-linux-arm64": "0.34.1",
+    "@img/sharp-linux-arm64": "0.34.2",
-    "@img/sharp-linux-s390x": "0.34.1",
+    "@img/sharp-linux-s390x": "0.34.2",
-    "@img/sharp-linux-x64": "0.34.1",
+    "@img/sharp-linux-x64": "0.34.2",
-    "@img/sharp-linuxmusl-arm64": "0.34.1",
+    "@img/sharp-linuxmusl-arm64": "0.34.2",
-    "@img/sharp-linuxmusl-x64": "0.34.1",
+    "@img/sharp-linuxmusl-x64": "0.34.2",
-    "@img/sharp-wasm32": "0.34.1",
+    "@img/sharp-wasm32": "0.34.2",
-    "@img/sharp-win32-arm64": "0.34.1",
+    "@img/sharp-win32-arm64": "0.34.2",
-    "@img/sharp-win32-ia32": "0.34.1",
+    "@img/sharp-win32-ia32": "0.34.2",
-    "@img/sharp-win32-x64": "0.34.1"
+    "@img/sharp-win32-x64": "0.34.2"
   },
   "devDependencies": {
-    "@emnapi/runtime": "^1.4.0",
+    "@emnapi/runtime": "^1.4.3",
     "@img/sharp-libvips-dev": "1.1.0",
     "@img/sharp-libvips-dev-wasm32": "1.1.0",
     "@img/sharp-libvips-win32-arm64": "1.1.0",
@@ -173,19 +173,19 @@
     "@img/sharp-libvips-win32-x64": "1.1.0",
     "@types/node": "*",
     "cc": "^3.0.1",
-    "emnapi": "^1.4.0",
+    "emnapi": "^1.4.3",
     "exif-reader": "^2.0.2",
     "extract-zip": "^2.0.1",
     "icc": "^3.0.0",
     "jsdoc-to-markdown": "^9.1.1",
     "license-checker": "^25.0.1",
-    "mocha": "^11.1.0",
+    "mocha": "^11.4.0",
     "node-addon-api": "^8.3.1",
     "nyc": "^17.1.0",
     "prebuild": "^13.0.1",
     "semistandard": "^17.0.0",
     "tar-fs": "^3.0.8",
-    "tsd": "^0.31.2"
+    "tsd": "^0.32.0"
   },
   "license": "Apache-2.0",
   "engines": {

src/common.cc

@@ -951,14 +951,6 @@ namespace sharp {
     return interpretation == VIPS_INTERPRETATION_RGB16 || interpretation == VIPS_INTERPRETATION_GREY16;
   }
 
-  /*
-    Return the image alpha maximum. Useful for combining alpha bands. scRGB
-    images are 0 - 1 for image data, but the alpha is 0 - 255.
-  */
-  double MaximumImageAlpha(VipsInterpretation const interpretation) {
-    return Is16Bit(interpretation) ? 65535.0 : 255.0;
-  }
-
   /*
     Convert RGBA value to another colourspace
   */
@@ -1001,16 +993,16 @@ namespace sharp {
         0.0722 * colour[2])
       };
     }
-    // Add alpha channel to alphaColour colour
+    // Add alpha channel(s) to alphaColour colour
     if (colour[3] < 255.0 || image.has_alpha()) {
-      alphaColour.push_back(colour[3] * multiplier);
+      int extraBands = image.bands() > 4 ? image.bands() - 3 : 1;
+      alphaColour.insert(alphaColour.end(), extraBands, colour[3] * multiplier);
     }
     // Ensure alphaColour colour uses correct colourspace
     alphaColour = sharp::GetRgbaAsColourspace(alphaColour, image.interpretation(), premultiply);
     // Add non-transparent alpha channel, if required
     if (colour[3] < 255.0 && !image.has_alpha()) {
-      image = image.bandjoin(
+      image = image.bandjoin_const({ 255 * multiplier });
-        VImage::new_matrix(image.width(), image.height()).new_from_image(255 * multiplier).cast(image.format()));
     }
     return std::make_tuple(image, alphaColour);
   }
@@ -1030,9 +1022,7 @@ namespace sharp {
   */
   VImage EnsureAlpha(VImage image, double const value) {
     if (!image.has_alpha()) {
-      std::vector<double> alpha;
+      image = image.bandjoin_const({ value * vips_interpretation_max_alpha(image.interpretation()) });
-      alpha.push_back(value * sharp::MaximumImageAlpha(image.interpretation()));
-      image = image.bandjoin_const(alpha);
     }
     return image;
   }

src/common.h

@@ -357,12 +357,6 @@ namespace sharp {
   */
   bool Is16Bit(VipsInterpretation const interpretation);
 
-  /*
-    Return the image alpha maximum. Useful for combining alpha bands. scRGB
-    images are 0 - 1 for image data, but the alpha is 0 - 255.
-  */
-  double MaximumImageAlpha(VipsInterpretation const interpretation);
-
   /*
     Convert RGBA value to another colourspace
   */

src/pipeline.cc

@@ -294,6 +294,7 @@ class PipelineWorker : public Napi::AsyncWorker {
           option->set("n", baton->input->pages);
           option->set("page", baton->input->page);
           option->set("dpi", baton->input->density);
+          option->set("background", baton->input->pdfBackground);
 
           if (baton->input->buffer != nullptr) {
             // Reload PDF buffer
@@ -1359,7 +1360,8 @@ class PipelineWorker : public Napi::AsyncWorker {
         // Add file size to info
         if (baton->formatOut != "dz" || sharp::IsDzZip(baton->fileOut)) {
           try {
-            uint32_t const size = static_cast<uint32_t>(std::filesystem::file_size(baton->fileOut));
+            uint32_t const size = static_cast<uint32_t>(
+              std::filesystem::file_size(std::filesystem::u8path(baton->fileOut)));
             info.Set("size", size);
           } catch (...) {}
         }

src/stats.cc

@@ -60,7 +60,7 @@ class StatsWorker : public Napi::AsyncWorker {
         // Image is not opaque when alpha layer is present and contains a non-mamixa value
         if (image.has_alpha()) {
           double const minAlpha = static_cast<double>(stats.getpoint(STAT_MIN_INDEX, bands).front());
-          if (minAlpha != sharp::MaximumImageAlpha(image.interpretation())) {
+          if (minAlpha != vips_interpretation_max_alpha(image.interpretation())) {
             baton->isOpaque = false;
           }
         }

test/unit/io.js

@@ -1036,4 +1036,21 @@ describe('Input/output', function () {
       });
     readable.pipe(inPipeline).pipe(badPipeline);
   });
+
+  it('supports wide-character filenames', async () => {
+    const filename = fixtures.path('output.图片.jpg');
+    const create = {
+      width: 8,
+      height: 8,
+      channels: 3,
+      background: 'green'
+    };
+    await sharp({ create }).toFile(filename);
+
+    const { width, height, channels, format } = await sharp(filename).metadata();
+    assert.strictEqual(width, 8);
+    assert.strictEqual(height, 8);
+    assert.strictEqual(channels, 3);
+    assert.strictEqual(format, 'jpeg');
+  });
 });

test/unit/resize-contain.js

@@ -806,4 +806,33 @@ describe('Resize fit=contain', function () {
         fixtures.assertSimilar(fixtures.expected('./embedgravitybird/9-c.png'), data, done);
       });
   });
+
+  it('multiple alpha channels', async () => {
+    const create = {
+      width: 20,
+      height: 12,
+      channels: 4,
+      background: 'green'
+    };
+    const multipleAlphaChannels = await sharp({ create })
+      .joinChannel({ create })
+      .tiff({ compression: 'deflate' })
+      .toBuffer();
+
+    const data = await sharp(multipleAlphaChannels)
+      .resize({
+        width: 8,
+        height: 8,
+        fit: 'contain',
+        background: 'blue'
+      })
+      .tiff({ compression: 'deflate' })
+      .toBuffer();
+    const { format, width, height, space, channels } = await sharp(data).metadata();
+    assert.deepStrictEqual(format, 'tiff');
+    assert.deepStrictEqual(width, 8);
+    assert.deepStrictEqual(height, 8);
+    assert.deepStrictEqual(space, 'srgb');
+    assert.deepStrictEqual(channels, 8);
+  });
 });

test/unit/util.js

@@ -10,18 +10,20 @@ const sharp = require('../../');
 describe('Utilities', function () {
   describe('Cache', function () {
     it('Can be disabled', function (done) {
-      queueMicrotask(() => {
+      const check = setInterval(() => {
-        sharp.cache(false);
         const cache = sharp.cache(false);
-        assert.strictEqual(cache.memory.current, 0);
+        const empty =
-        assert.strictEqual(cache.memory.max, 0);
+          cache.memory.current +
-        assert.strictEqual(typeof cache.memory.high, 'number');
+          cache.memory.max +
-        assert.strictEqual(cache.files.current, 0);
+          cache.files.current +
-        assert.strictEqual(cache.files.max, 0);
+          cache.files.max +
-        assert.strictEqual(cache.items.current, 0);
+          cache.items.current +
-        assert.strictEqual(cache.items.max, 0);
+          cache.items.max === 0;
-        done();
+        if (empty) {
-      });
+          clearInterval(check);
+          done();
+        }
+      }, 2000);
     });
     it('Can be enabled with defaults', function () {
       const cache = sharp.cache(true);