diff --git a/test/BasicResolverTest.php b/test/BasicResolverTest.php
new file mode 100644
index 0000000..c01e131
--- /dev/null
+++ b/test/BasicResolverTest.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Amp\Dns\Test;
+
+use Amp\Dns\BasicResolver;
+use Amp\Dns\Record;
+use Amp\Dns\ResolutionException;
+use Amp\Loop;
+use Amp\PHPUnit\TestCase;
+
+class BasicResolverTest extends TestCase {
+    public function testResolveSecondParameterAcceptedValues() {
+        Loop::run(function () {
+            $this->expectException(\Error::class);
+            (new BasicResolver)->resolve("abc.de", Record::TXT);
+        });
+    }
+
+    public function testIpAsArgumentWithIPv4Restriction() {
+        Loop::run(function () {
+            $this->expectException(ResolutionException::class);
+            yield (new BasicResolver)->resolve("::1", Record::A);
+        });
+    }
+
+    public function testIpAsArgumentWithIPv6Restriction() {
+        Loop::run(function () {
+            $this->expectException(ResolutionException::class);
+            yield (new BasicResolver)->resolve("127.0.0.1", Record::AAAA);
+        });
+    }
+}
diff --git a/test/IntegrationTest.php b/test/IntegrationTest.php
index f329fc1..bbe18c6 100644
--- a/test/IntegrationTest.php
+++ b/test/IntegrationTest.php
@@ -20,6 +20,7 @@ class IntegrationTest extends TestCase {
             /** @var Record $record */
             $record = $result[0];
             $inAddr = @\inet_pton($record->getValue());
+            $this->assertNotNull($record->getTtl());
             $this->assertNotFalse(
                 $inAddr,
                 "Server name $hostname did not resolve to a valid IP address"