test: add tests for console.assert

There were previously no tests where console.assert failed

PR-URL: https://github.com/nodejs/node/pull/6302
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/parallel/test-console.js

@@ -83,3 +83,11 @@ assert.ok(/^__proto__: \d+\.\d{3}ms$/.test(strings.shift().trim()));
 assert.ok(/^constructor: \d+\.\d{3}ms$/.test(strings.shift().trim()));
 assert.ok(/^hasOwnProperty: \d+\.\d{3}ms$/.test(strings.shift().trim()));
 assert.equal(strings.length, 0);
+
+assert.throws(() => {
+  console.assert(false, 'should throw');
+}, /should throw/);
+
+assert.doesNotThrow(() => {
+  console.assert(true, 'this should not throw');
+});