tests/run-make/wasm-custom-section/foo.js

   1 const fs = require('fs');
   2 const process = require('process');
   3 const assert = require('assert');
   4 const buffer = fs.readFileSync(process.argv[2]);
   5
   6 let m = new WebAssembly.Module(buffer);
   7 let sections = WebAssembly.Module.customSections(m, "baz");
   8 console.log('section baz', sections);
   9 assert.strictEqual(sections.length, 1);
  10 let section = new Uint8Array(sections[0]);
  11 console.log('contents', section);
  12 assert.strictEqual(section.length, 2);
  13 assert.strictEqual(section[0], 7);
  14 assert.strictEqual(section[1], 8);
  15
  16 sections = WebAssembly.Module.customSections(m, "bar");
  17 console.log('section bar', sections);
  18 assert.strictEqual(sections.length, 1, "didn't pick up `bar` section from dependency");
  19 section = new Uint8Array(sections[0]);
  20 console.log('contents', section);
  21 assert.strictEqual(section.length, 2);
  22 assert.strictEqual(section[0], 3);
  23 assert.strictEqual(section[1], 4);
  24
  25 sections = WebAssembly.Module.customSections(m, "foo");
  26 console.log('section foo', sections);
  27 assert.strictEqual(sections.length, 1, "didn't create `foo` section");
  28 section = new Uint8Array(sections[0]);
  29 console.log('contents', section);
  30 assert.strictEqual(section.length, 4, "didn't concatenate `foo` sections");
  31 assert.strictEqual(section[0], 5);
  32 assert.strictEqual(section[1], 6);
  33 assert.strictEqual(section[2], 1);
  34 assert.strictEqual(section[3], 2);
  35
  36 process.exit(0);