test: run address-codec tests in the browser (#2466)

Update tests to use jasmine compatible functions.

This means changing `test` to `it`, `toStrictEqual` to `toEqual` (which
is still strict), `toThrowError` to `toError`, and updating the param
for toError to pass an `Error` object.

Remove the need to specify --single-run.

packages/xrpl/karma.config.js

@@ -1,39 +1,14 @@
-const webpackConfig = require('./test/webpack.config')[0]()
+const baseKarmaConfig = require('../../karma.config')
+const webpackConfig = require('./test/webpack.config')
 delete webpackConfig.entry
 
 module.exports = function (config) {
   config.set({
-    plugins: ['karma-webpack', 'karma-jasmine', 'karma-chrome-launcher'],
-
-    // base path that will be used to resolve all patterns (eg. files, exclude)
-    basePath: '',
-
     webpack: webpackConfig,
 
-    // frameworks to use
-    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
-    frameworks: ['jasmine'],
-
     // list of files / patterns to load in the browser
     files: ['build/xrpl-latest.js', 'test/integration/**/*.test.ts'],
-
-    // preprocess matching files before serving them to the browser
-    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
-    preprocessors: {
-      // Use webpack to bundle our test files
-      'test/integration/**/*.test.ts': ['webpack'],
-    },
-
-    browsers: ['ChromeHeadless'],
-    // runs only one browser at a time
-    concurrency: 1,
-    // CI mode
-    singleRun: true,
-    client: {
-      jasmine: {
-        // ensures that tests are run in order instead of a random order
-        random: false,
-      },
-    },
   })
+
+  baseKarmaConfig(config)
 }