User workers for slow fillValue tests

Author: ahocevar

src/geotiff.js

@@ -451,7 +451,7 @@ class GeoTIFF extends GeoTIFFBase {
    * Get the n-th internal subfile of an image. By default, the first is returned.
    *
    * @param {Number} [index=0] the index of the image to return.
-   * @returns {GeoTIFFImage} the image at the given index
+   * @returns {Promise<GeoTIFFImage>} the image at the given index
    */
   async getImage(index = 0) {
     const ifd = await this.requestIFD(index);

test/geotiff.spec.js

@@ -18,18 +18,21 @@ import DataView64 from '../dist-module/dataview64.js';
 
 const __dirname = dirname(new URL(import.meta.url).pathname);
 
-// Set up a node server to make tiffs available at localhost:3000/test/data
+// Set up a node server to make tiffs available at localhost:3000/test/data, and a worker pool
 let server = null;
+let pool = null;
 before(async () => {
   const serve = serveStatic(__dirname);
   server = http.createServer((req, res) => {
     serve(req, res, finalhandler(req, res));
   });
   server.listen(3000);
+  pool = new Pool();
 });
 
 after(async () => {
   server.close();
+  pool.destroy();
 });
 
 function createSource(filename) {
@@ -256,11 +259,11 @@ describe('GeoTIFF', () => {
   });
 
   it('should work with worker pool', async () => {
-    const pool = new Pool();
+    const testPool = new Pool();
     const tiff = await GeoTIFF.fromSource(createSource('nasa_raster.tiff'));
     const image = await tiff.getImage();
-    await image.readRasters({ pool });
-    pool.destroy();
+    await image.readRasters({ pool: testPool });
+    testPool.destroy();
   });
 
   it('should work with LZW compressed tiffs that have an EOI Code after a CLEAR code', async () => {
@@ -650,21 +653,21 @@ describe('fillValue', async () => {
     }
   });
 
-  it('should fill areas in overview tiles outside the image extent (left)', async () => {
+  it('should fill areas in overview tiles outside the image extent (left, with worker pool)', async () => {
     const tiff = await GeoTIFF.fromSource(createSource('cog.tiff'));
     const image = await tiff.getImage(1);
-    const data = await image.readRasters({ window: [269, 0, 270, 1], fillValue: 42 });
+    const data = await image.readRasters({ window: [269, 0, 270, 1], fillValue: 42, pool });
     expect(data).to.have.lengthOf(15);
     for (const band of data) {
       expect(band).to.have.lengthOf(1);
       expect(band).to.deep.equal(new Uint16Array([42]));
     }
   }).timeout(10000);
 
-  it('should fill areas in overview tiles outside the image extent (below)', async () => {
+  it('should fill areas in overview tiles outside the image extent (below, with worker pool)', async () => {
     const tiff = await GeoTIFF.fromSource(createSource('cog.tiff'));
     const image = await tiff.getImage(1);
-    const data = await image.readRasters({ window: [0, 224, 1, 225], fillValue: 42 });
+    const data = await image.readRasters({ window: [0, 224, 1, 225], fillValue: 42, pool });
     expect(data).to.have.lengthOf(15);
     for (const band of data) {
       expect(band).to.have.lengthOf(1);