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Update Mocha to v8, drop Phantomic, run browser tests in Chromium #35

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merged 5 commits into from
May 23, 2021

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@m90 m90 commented May 17, 2021

As discussed over in mantoni/mochify.js#213, this updates Mocha to the most recent version.

As more and more packages (e.g. Mocha reporters) seem to use syntax that Phantom.js does not seem to handle well anymore, this PR also moves the browser based test to a Chromium based setup that is pretty close to what is happening in Mochify itself (which is probably a good canary here too in case something goes wrong).

I would assume this will be a new major version, so I also went ahead and changed the Node versions used in Travis to all currently supported ones.

@@ -44,6 +44,11 @@ module.exports = function (b, opts) {
return { main : pkg.browser };
}
});
var broutPath = path.relative(process.cwd(), broutFile);
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This change is not strictly necessary, but it's a leftover from moving things around and I felt the order is now easier to understand. It could also just be reverted again.

@@ -139,7 +138,9 @@ module.exports = function (b, opts) {
var self = this;
listener.then(function (err, res) {
if (!err) {
setupSource = (res.mocha || '') + res.setup;
setupSource = (opts.node ? '' : 'require(\'brout\');\n')
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Mocha 6.2.0 starts adding behavior to console.log mochajs/mocha#3725 so it's now needed to require brout before requiring mocha. I'm not sure if this ad-hoc string doing it here for us is the most elegant way to do it, but then I also didn't want to add a single line file. Any opinions?

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My opinion is that any hack that get's us there is fine 😆

if (Mocha.reporters['{{REPORTER}}']) {
mocha.reporter('{{REPORTER}}', '{{REPORTER_OPTIONS}}');
} else {
mocha.reporter(require('{{REPORTER}}'), '{{REPORTER_OPTIONS}}');
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Mocha is now bundled using Rollup which does not support dynamic requires for CommonJS. This way we pass in the reporter module instead of its name so that Mocha doesn't have to do any module resolution anymore.

@@ -22,7 +22,7 @@ if ('{{INVERT}}' === true) { // eslint-disable-line no-constant-condition
}
_mocha.reporter('{{REPORTER}}', '{{REPORTER_OPTIONS}}');
_mocha.timeout('{{TIMEOUT}}');
_mocha.useColors('{{USE_COLORS}}');
_mocha.color('{{USE_COLORS}}');
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useColors seems to have been deprecated a while ago and was removed in Mocha 8 mochajs/mocha#4178

});
s.pipe(p.stdin);
} else if (proc === 'chromium') {
b.bundle(function (err, result) {
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This is a stripped down version of what is happening in Mochify.

+ '# tests 1\n'
+ '# pass 1\n'
+ '# fail 0\n');
+ '# fail 0\n'
+ '1..1\n');
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I don't know too much about the TAP spec, but it seems the plan seems to get printed after the results now? I think it's this commit: mochajs/mocha@2078c32#diff-e8a8c7ad26fed3d12b4bd90577d2fb603f34e78ac146e603c043964f96f5a37e that is causing it. I have no idea if this will be a problem when using this in Mochify?

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When linking this version of mocaccino into my local version of mochify this will also make quite a few tests fail because they assert the previous format.

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Seems TAP is fine with the plan being either printed at the beginning or the end of the output https://testanything.org/tap-specification.html#the-plan so this is not a bug or anything.

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Thank you for researching. This will be a major release, and also a major of mochify, so it's fine if the output format changes.

run('phantomic', [], b, passOutputAssert(done));
});

it('passes --brout test', function (done) {
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I removed these tests as we do not pass any flags to Chromium in any way.

@m90 m90 requested a review from mantoni May 17, 2021 06:23
@mantoni mantoni merged commit c29813f into master May 23, 2021
@mantoni mantoni deleted the mocha-update branch May 23, 2021 10:17
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mantoni commented May 23, 2021

Awesome! This is great 🥇

📦 Released in v5.0.0.

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2 participants