Tone.js/test/scripts/test_examples.cjs
2021-12-18 17:36:57 -05:00

109 lines
2.6 KiB
JavaScript

/* eslint-disable no-console */
/* eslint-disable @typescript-eslint/no-var-requires */
const { resolve } = require("path");
const { exec } = require("child_process");
const { file } = require("tmp-promise");
const { writeFile } = require("fs-extra");
const toneJson = require("../../docs/tone.json");
const testSplit = parseInt(process.env.TEST_EXAMPLES || "0");
/**
* Get all of the examples
*/
function findExamples(obj) {
let examples = [];
for (const prop in obj) {
if (Array.isArray(obj[prop])) {
obj[prop].forEach((child) => {
examples = [...examples, ...findExamples(child)];
});
} else if (prop === "comment" && obj[prop].tags) {
examples = [
...examples,
...obj[prop].tags
.filter((tag) => tag.tag === "example")
.map((tag) => tag.text),
];
} else if (typeof obj[prop] === "object") {
examples = [...examples, ...findExamples(obj[prop])];
} else {
// console.log(prop);
}
}
// filter any repeats
return [...new Set(examples)];
}
/**
* A promise version of exec
*/
function execPromise(cmd) {
return new Promise((done, error) => {
exec(cmd, (_, output) => {
if (output) {
error(output);
} else {
done();
}
});
});
}
/**
* Run the string through the typescript compiler
*/
async function testExampleString(str) {
// str = str.replace("from \"tone\"", `from "${resolve(__dirname, "../../")}"`);
str = `
import * as Tone from "${resolve(__dirname, "../../")}"
function main(){
${str}
}
main();
`;
const { path, cleanup } = await file({ postfix: ".ts" });
try {
// work with file here in fd
await writeFile(path, str);
await execPromise(
`tsc --noEmit --target es5 --lib dom,ES2015 ${path}`
);
} finally {
cleanup();
}
}
async function main() {
let examples = findExamples(toneJson);
if (testSplit > 0) {
// split it in half and choose either the first or second half
const halfLength = Math.ceil(examples.length / 2);
const splitStart = (testSplit - 1) * halfLength;
const splitEnd = testSplit * halfLength;
examples = examples.slice(splitStart, splitEnd);
console.log(`testing examples ${splitStart} - ${splitEnd}`);
}
let passed = 0;
for (let i = 0; i < examples.length; i++) {
const example = examples[i];
try {
await testExampleString(example);
passed++;
// print a dot for each passed example
process.stdout.write(".");
// add a new line occasionally
if (passed % 100 === 0) {
process.stdout.write("\n");
}
} catch (e) {
console.log(example + "\n" + e);
throw e;
}
}
console.log(`\nvalid examples ${passed}/${examples.length}`);
if (passed !== examples.length) {
throw new Error("didn't pass all tests");
}
}
main();