test(LAZPArser): add unit test

test/unit/lazparser.js

@@ -0,0 +1,52 @@
+import assert from 'assert';
+import { HttpsProxyAgent } from 'https-proxy-agent';
+import LAZParser from 'Parser/LAZParser';
+import Fetcher from 'Provider/Fetcher';
+
+describe('LAZParser', function () {
+    let lazChunk;
+    let parser;
+
+    before(async function () {
+        const networkOptions = process.env.HTTPS_PROXY ? {
+            agent: new HttpsProxyAgent(process.env.HTTPS_PROXY),
+            headers: { range: 'bytes=79462688-80225945' },
+        } : {
+            headers: { range: 'bytes=79462688-80225945' },
+        };
+        const url = 'https://s3.amazonaws.com/hobu-lidar/autzen-classified.copc.laz';
+        lazChunk = await Fetcher.arrayBuffer(url, networkOptions);
+        parser = LAZParser.parseChunk({
+            baseUrl: './node_modules/laz-perf/lib',
+        });
+    });
+
+    it('parses a laz file to a THREE.BufferGeometry', async function () {
+        const min = [635577.79, 848882.15, 406.14];
+        const max = [639003.73, 853537.66, 615.26];
+
+        const header = {
+            pointDataRecordFormat: 7,
+            pointDataRecordLength: 36,
+            scale: [0.01, 0.01, 0.01],
+            offset: [637290.75, 851209.9, 510.7],
+        };
+        const bufferGeometry = await parser(lazChunk, {
+            in: {
+                pointCount: 61201,
+                header,
+                eb: [],
+            },
+            out: {},
+        });
+
+        const epsilon = 0.1;
+
+        assert.ok(bufferGeometry.boundingBox.min.x + epsilon >= min[0]);
+        assert.ok(bufferGeometry.boundingBox.min.y + epsilon >= min[1]);
+        assert.ok(bufferGeometry.boundingBox.min.z + epsilon >= min[2]);
+        assert.ok(bufferGeometry.boundingBox.max.x - epsilon <= max[0]);
+        assert.ok(bufferGeometry.boundingBox.max.y - epsilon <= max[1]);
+        assert.ok(bufferGeometry.boundingBox.max.z - epsilon <= max[2]);
+    });
+});