more tests

test/database.js

@@ -2,6 +2,7 @@
 
 
 var	assert = require('assert');
+var nconf = require('nconf');
 var db = require('./mocks/databasemock');
 
 
@@ -12,14 +13,46 @@ describe('Test database', function () {
 		});
 	});
 
-	it('should return info about database', function (done) {
-		db.info(db.client, function (err, info) {
-			assert.ifError(err);
-			assert(info);
-			done();
+	describe('info', function () {
+		it('should return info about database', function (done) {
+			db.info(db.client, function (err, info) {
+				assert.ifError(err);
+				assert(info);
+				done();
+			});
+		});
+
+		it('should not error and return null if client is falsy', function (done) {
+			db.info(null, function (err, info) {
+				assert.ifError(err);
+				assert.equal(info, null);
+				done();
+			});
 		});
 	});
 
+	describe('checkCompatibility', function () {
+		it('should not throw', function (done) {
+			db.checkCompatibility(done);
+		});
+
+		it('should return error with a too low version', function (done) {
+			var dbName = nconf.get('database');
+			if (dbName === 'redis') {
+				db.checkCompatibilityVersion('2.4.0', function (err) {
+					assert.equal(err.message, 'Your Redis version is not new enough to support NodeBB, please upgrade Redis to v2.8.9 or higher.');
+					done();
+				});
+			} else if (dbName === 'mongo') {
+				db.checkCompatibilityVersion('1.8.0', function (err) {
+					assert.equal(err.message, 'The `mongodb` package is out-of-date, please run `./nodebb setup` again.');
+					done();
+				});
+			}
+		});
+	});
+
+
 	require('./database/keys');
 	require('./database/list');
 	require('./database/sets');