tests: add some query end event tests

closes mysqljs#964

Author: dougwilson

test/unit/pool/test-connection-release-after-error.js

@@ -0,0 +1,27 @@
+var assert = require('assert');
+var common = require('../../common');
+var pool   = common.createPool({port: common.fakeServerPort});
+
+var server = common.createFakeServer();
+
+process.on('uncaughtException', function (err) {
+  if (err.code !== 'ER_PARSE_ERROR') throw err;
+});
+
+server.listen(common.fakeServerPort, function (err) {
+  assert.ifError(err);
+
+  pool.getConnection(function (err, conn) {
+    assert.ifError(err);
+
+    var query = conn.query('SELECT INVALID');
+
+    query.on('end', function () {
+      conn.release();
+      pool.end(function (err) {
+        assert.ifError(err);
+        server.destroy();
+      });
+    });
+  });
+});

test/unit/pool/test-query-end-after-error.js

@@ -0,0 +1,22 @@
+var assert = require('assert');
+var common = require('../../common');
+var pool   = common.createPool({port: common.fakeServerPort});
+
+var server = common.createFakeServer();
+
+process.on('uncaughtException', function (err) {
+  if (err.code !== 'ER_PARSE_ERROR') throw err;
+});
+
+server.listen(common.fakeServerPort, function (err) {
+  assert.ifError(err);
+
+  var query = pool.query('SELECT INVALID');
+
+  query.on('end', function () {
+    pool.end(function (err) {
+      assert.ifError(err);
+      server.destroy();
+    });
+  });
+});

test/unit/query/test-query-end-after-error.js

@@ -0,0 +1,22 @@
+var assert     = require('assert');
+var common     = require('../../common');
+var connection = common.createConnection({port: common.fakeServerPort});
+
+var server = common.createFakeServer();
+
+process.on('uncaughtException', function (err) {
+  if (err.code !== 'ER_PARSE_ERROR') throw err;
+});
+
+server.listen(common.fakeServerPort, function (err) {
+  assert.ifError(err);
+
+  var query = connection.query('SELECT INVALID');
+
+  query.on('end', function () {
+    connection.end(function (err) {
+      assert.ifError(err);
+      server.destroy();
+    });
+  });
+});