feat: add building of SNJS Docker image for e2e testing purposes (#1225)

* feat: add building of SNJS Docker image for e2e testing purposes

* fix: contents of snjs package

* feat: add running e2e test suite

* fix: include mocha directory in the snjs yarn package

* fix: add triggering e2e tests with specific image tag

* fix: mocha tests url

* fix: add tests before publishing new version

* fix: temporary skip linter errors

* Revert "fix: temporary skip linter errors"

This reverts commit c989536930a291677f6ef8cad402feb13f066b8c.

* fix: replace test libraries with unpkg CDN versions

* fix: update yarn lock and remove cached libs

* fix: add missing library to mocha tests

* fix: restore chai-as-promised built version

* fix: serving sncrypto-web in mocha test suite

* fix: add copy of sncrypto-web to gitignore files

packages/snjs/e2e-server.js

@@ -0,0 +1,29 @@
+/* Used for running mocha tests */
+const connect = require('connect')
+const serveStatic = require('serve-static')
+const fs = require('fs')
+
+const isDev = process.argv[2] === '--dev'
+const port = isDev ? 9002 : 9001
+
+const snCryptoDistFilePath = `${__dirname}/../sncrypto-web/dist/sncrypto-web.js`
+if (!fs.existsSync(snCryptoDistFilePath)) {
+  console.error(
+    `Could not find sncrypto dist file under: ${snCryptoDistFilePath}. Please consider building the project first`,
+  )
+
+  process.exit(1)
+}
+
+fs.copyFileSync(snCryptoDistFilePath, `${__dirname}/mocha/vendor/sncrypto-web.js`)
+
+connect()
+  .use(serveStatic(__dirname))
+  .listen(port, () => {
+    const url = `http://localhost:${port}/mocha/test.html`
+    console.log(`Test Server Started on ${url}`)
+    if (!isDev) {
+      const start = process.platform === 'darwin' ? 'open' : process.platform === 'win32' ? 'start' : 'xdg-open'
+      require('child_process').exec(start + ' ' + url)
+    }
+  })