diff --git a/tests/test_array.h b/tests/test_array.h
new file mode 100644
index 00000000000..52da2568604
--- /dev/null
+++ b/tests/test_array.h
@@ -0,0 +1,186 @@
+/*************************************************************************/
+/*  test_array.h                                                         */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef TEST_ARRAY_H
+#define TEST_ARRAY_H
+
+#include "core/object/class_db.h"
+#include "core/object/script_language.h"
+#include "core/templates/hashfuncs.h"
+#include "core/templates/vector.h"
+#include "core/variant/array.h"
+#include "core/variant/container_type_validate.h"
+#include "core/variant/variant.h"
+#include "tests/test_macros.h"
+
+namespace TestArray {
+
+TEST_CASE("[Array] size(), clear(), and is_empty()") {
+	Array arr;
+	CHECK(arr.size() == 0);
+	CHECK(arr.is_empty());
+	arr.push_back(1);
+	CHECK(arr.size() == 1);
+	arr.clear();
+	CHECK(arr.is_empty());
+	CHECK(arr.size() == 0);
+}
+
+TEST_CASE("[Array] Assignment and comparison operators") {
+	Array arr1;
+	Array arr2;
+	arr1.push_back(1);
+	CHECK(arr1 != arr2);
+	CHECK(arr1 > arr2);
+	CHECK(arr1 >= arr2);
+	arr2.push_back(2);
+	CHECK(arr1 != arr2);
+	CHECK(arr1 < arr2);
+	CHECK(arr1 <= arr2);
+	CHECK(arr2 > arr1);
+	CHECK(arr2 >= arr1);
+	Array arr3 = arr2;
+	CHECK(arr3 == arr2);
+}
+
+TEST_CASE("[Array] append_array()") {
+	Array arr1;
+	Array arr2;
+	arr1.push_back(1);
+	arr1.append_array(arr2);
+	CHECK(arr1.size() == 1);
+	arr2.push_back(2);
+	arr1.append_array(arr2);
+	CHECK(arr1.size() == 2);
+	CHECK(int(arr1[0]) == 1);
+	CHECK(int(arr1[1]) == 2);
+}
+
+TEST_CASE("[Array] resize(), insert(), and erase()") {
+	Array arr;
+	arr.resize(2);
+	CHECK(arr.size() == 2);
+	arr.insert(0, 1);
+	CHECK(int(arr[0]) == 1);
+	arr.insert(0, 2);
+	CHECK(int(arr[0]) == 2);
+	arr.erase(2);
+	CHECK(int(arr[0]) == 1);
+}
+
+TEST_CASE("[Array] front() and back()") {
+	Array arr;
+	arr.push_back(1);
+	CHECK(int(arr.front()) == 1);
+	CHECK(int(arr.back()) == 1);
+	arr.push_back(3);
+	CHECK(int(arr.front()) == 1);
+	CHECK(int(arr.back()) == 3);
+}
+
+TEST_CASE("[Array] has() and count()") {
+	Array arr;
+	arr.push_back(1);
+	arr.push_back(1);
+	CHECK(arr.has(1));
+	CHECK(!arr.has(2));
+	CHECK(arr.count(1) == 2);
+	CHECK(arr.count(2) == 0);
+}
+
+TEST_CASE("[Array] remove()") {
+	Array arr;
+	arr.push_back(1);
+	arr.push_back(2);
+	arr.remove(0);
+	CHECK(arr.size() == 1);
+	CHECK(int(arr[0]) == 2);
+	arr.remove(0);
+	CHECK(arr.size() == 0);
+
+	// The array is now empty; try to use `remove()` again.
+	// Normally, this prints an error message so we silence it.
+	ERR_PRINT_OFF;
+	arr.remove(0);
+	ERR_PRINT_ON;
+
+	CHECK(arr.size() == 0);
+}
+
+TEST_CASE("[Array] get()") {
+	Array arr;
+	arr.push_back(1);
+	CHECK(int(arr.get(0)) == 1);
+}
+
+TEST_CASE("[Array] sort()") {
+	Array arr;
+
+	arr.push_back(3);
+	arr.push_back(4);
+	arr.push_back(2);
+	arr.push_back(1);
+	arr.sort();
+	int val = 1;
+	for (int i = 0; i < arr.size(); i++) {
+		CHECK(int(arr[i]) == val);
+		val++;
+	}
+}
+
+TEST_CASE("[Array] push_front(), pop_front(), pop_back()") {
+	Array arr;
+	arr.push_front(1);
+	arr.push_front(2);
+	CHECK(int(arr[0]) == 2);
+	arr.pop_front();
+	CHECK(int(arr[0]) == 1);
+	CHECK(arr.size() == 1);
+	arr.push_front(2);
+	arr.push_front(3);
+	arr.pop_back();
+	CHECK(int(arr[1]) == 2);
+	CHECK(arr.size() == 2);
+}
+
+TEST_CASE("[Array] max() and min()") {
+	Array arr;
+	arr.push_back(3);
+	arr.push_front(4);
+	arr.push_back(5);
+	arr.push_back(2);
+	int max = int(arr.max());
+	int min = int(arr.min());
+	CHECK(max == 5);
+	CHECK(min == 2);
+}
+} // namespace TestArray
+
+#endif // TEST_ARRAY_H
diff --git a/tests/test_main.cpp b/tests/test_main.cpp
index 2697eb6399f..b9c9fb24d55 100644
--- a/tests/test_main.cpp
+++ b/tests/test_main.cpp
@@ -33,6 +33,7 @@
 #include "core/templates/list.h"
 
 #include "test_aabb.h"
+#include "test_array.h"
 #include "test_astar.h"
 #include "test_basis.h"
 #include "test_class_db.h"