From aeae1cb5e2415814c043f53509f4f1f7db468b24 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Sun, 21 Jul 2019 11:35:09 +0200
Subject: [PATCH] AK: Add a unit test for Vector::prepend(Vector&&) with
 complex T.

It's good to verify that complex objects can be moved nicely by Vector.
---
 AK/Tests/TestVector.cpp | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/AK/Tests/TestVector.cpp b/AK/Tests/TestVector.cpp
index ea5f7a9526..5b7e8f0c0f 100644
--- a/AK/Tests/TestVector.cpp
+++ b/AK/Tests/TestVector.cpp
@@ -1,5 +1,6 @@
 #include <AK/TestSuite.h>
 #include <AK/AKString.h>
+#include <AK/OwnPtr.h>
 #include <AK/Vector.h>
 
 TEST_CASE(construct)
@@ -98,4 +99,39 @@ TEST_CASE(prepend_vector)
     EXPECT_EQ(ints.size(), 0);
 }
 
+TEST_CASE(prepend_vector_object)
+{
+    struct SubObject {
+        SubObject(int v) : value(v) {}
+        int value { 0 };
+    };
+    struct Object {
+        OwnPtr<SubObject> object;
+    };
+
+    Vector<Object> objects;
+    objects.append({ make<SubObject>(1) });
+    objects.append({ make<SubObject>(2) });
+    objects.append({ make<SubObject>(3) });
+
+    EXPECT_EQ(objects.size(), 3);
+
+    Vector<Object> more_objects;
+    objects.append({ make<SubObject>(4) });
+    objects.append({ make<SubObject>(5) });
+    objects.append({ make<SubObject>(6) });
+    EXPECT_EQ(more_objects.size(), 3);
+
+    objects.prepend(move(more_objects));
+    EXPECT_EQ(more_objects.size(), 0);
+    EXPECT_EQ(objects.size(), 6);
+
+    EXPECT_EQ(objects[0].object->value, 4);
+    EXPECT_EQ(objects[1].object->value, 5);
+    EXPECT_EQ(objects[2].object->value, 6);
+    EXPECT_EQ(objects[3].object->value, 1);
+    EXPECT_EQ(objects[4].object->value, 2);
+    EXPECT_EQ(objects[5].object->value, 3);
+}
+
 TEST_MAIN(Vector)