From c5611636fb03ce71f50a9bca958c79d23b55be00 Mon Sep 17 00:00:00 2001 From: Casper Beyer Date: Tue, 3 Nov 2020 01:50:45 +0800 Subject: feat(std/wasi): add start method to Context (#8141) This adds a start method to the Context to make starting a command less tedious and yield consistent errors. Manually setting the memory is still valid for more complex scenarios, just undocumented for the time being. --- std/wasi/snapshot_preview1_test.ts | 45 +++++++++++++++++++++++++++++++++++++- 1 file changed, 44 insertions(+), 1 deletion(-) (limited to 'std/wasi/snapshot_preview1_test.ts') diff --git a/std/wasi/snapshot_preview1_test.ts b/std/wasi/snapshot_preview1_test.ts index 0ea57e089..44877117c 100644 --- a/std/wasi/snapshot_preview1_test.ts +++ b/std/wasi/snapshot_preview1_test.ts @@ -1,5 +1,6 @@ // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license. -import { assertEquals } from "../testing/asserts.ts"; +import Context from "./snapshot_preview1.ts"; +import { assertEquals, assertThrows } from "../testing/asserts.ts"; import { copy } from "../fs/mod.ts"; import * as path from "../path/mod.ts"; @@ -137,3 +138,45 @@ for (const pathname of tests) { }, }); } + +Deno.test("context_start", function () { + assertThrows( + () => { + const context = new Context({}); + context.start({ + exports: { + _start() {}, + }, + }); + }, + TypeError, + "must provide a memory export", + ); + + assertThrows( + () => { + const context = new Context({}); + context.start({ + exports: { + _initialize() {}, + memory: new WebAssembly.Memory({ initial: 1 }), + }, + }); + }, + TypeError, + "export _initialize must not be a function", + ); + + assertThrows( + () => { + const context = new Context({}); + context.start({ + exports: { + memory: new WebAssembly.Memory({ initial: 1 }), + }, + }); + }, + TypeError, + "export _start must be a function", + ); +}); -- cgit v1.2.3