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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
import {
isWasm,
lineToWasmOffset,
wasmOffsetToLine,
clearWasmStates,
renderWasmText,
} from "../wasm.js";
import { makeMockWasmSourceWithContent } from "../test-mockup";
describe("wasm", () => {
// Compiled version of `(module (func (nop)))`
const SIMPLE_WASM = {
binary:
"\x00asm\x01\x00\x00\x00\x01\x84\x80\x80\x80\x00\x01`\x00\x00" +
"\x03\x82\x80\x80\x80\x00\x01\x00\x06\x81\x80\x80\x80\x00\x00" +
"\n\x89\x80\x80\x80\x00\x01\x83\x80\x80\x80\x00\x00\x01\v",
};
// malformed binary which contains an unknown operator (\x09) which
// should cause the wasm parser to throw.
const MALFORMED_SIMPLE_WASM = {
binary:
"\x00asm\x01\x00\x00\x00\x09\x84\x80\x80\x80\x00\x01`\x00\x00" +
"\x03\x82\x80\x80\x80\x00\x01\x00\x06\x81\x80\x80\x80\x00\x00" +
"\n\x89\x80\x80\x80\x00\x01\x83\x80\x80\x80\x00\x00\x01\v",
};
const SIMPLE_WASM_TEXT = `(module
(func $func0
nop
)
)`;
const SIMPLE_WASM_NOP_TEXT_LINE = 2;
const SIMPLE_WASM_NOP_OFFSET = 46;
describe("isWasm", () => {
it("should give us the false when wasm text was not registered", () => {
const sourceId = "source.0";
expect(isWasm(sourceId)).toEqual(false);
});
it("should give us the true when wasm text was registered", () => {
const source = makeMockWasmSourceWithContent(SIMPLE_WASM);
renderWasmText(source.id, source.content.value);
expect(isWasm(source.id)).toEqual(true);
// clear shall remove
clearWasmStates();
expect(isWasm(source.id)).toEqual(false);
});
});
describe("renderWasmText", () => {
it("render simple wasm", () => {
const source = makeMockWasmSourceWithContent(SIMPLE_WASM);
const lines = renderWasmText(source.id, source.content.value);
expect(lines.join("\n")).toEqual(SIMPLE_WASM_TEXT);
clearWasmStates();
});
it("should return error information when the parser throws", () => {
const source = makeMockWasmSourceWithContent(MALFORMED_SIMPLE_WASM);
const lines = renderWasmText(source.id, source.content.value);
expect(lines.join("\n")).toEqual(
"Error occured during wast conversion : Unsupported element segment type 96"
);
clearWasmStates();
});
});
describe("lineToWasmOffset", () => {
// Test data sanity check: checking if 'nop' is found in the SIMPLE_WASM.
expect(SIMPLE_WASM.binary[SIMPLE_WASM_NOP_OFFSET]).toEqual("\x01");
it("get simple wasm nop offset", () => {
const source = makeMockWasmSourceWithContent(SIMPLE_WASM);
renderWasmText(source.id, source.content.value);
const offset = lineToWasmOffset(source.id, SIMPLE_WASM_NOP_TEXT_LINE);
expect(offset).toEqual(SIMPLE_WASM_NOP_OFFSET);
clearWasmStates();
});
});
describe("wasmOffsetToLine", () => {
it("get simple wasm nop line", () => {
const source = makeMockWasmSourceWithContent(SIMPLE_WASM);
renderWasmText(source.id, source.content.value);
const line = wasmOffsetToLine(source.id, SIMPLE_WASM_NOP_OFFSET);
expect(line).toEqual(SIMPLE_WASM_NOP_TEXT_LINE);
clearWasmStates();
});
});
});