diff -r 0d5447230044 -r 8c6edaccaef1 tests/test_map.cpp
--- a/tests/test_map.cpp	Sun May 21 14:04:34 2023 +0200
+++ b/tests/test_map.cpp	Sun May 21 14:37:56 2023 +0200
@@ -472,3 +472,51 @@
     cxMapDestroy(map);
     EXPECT_TRUE(allocator.verify());
 }
+
+TEST(EmptyMap, Size) {
+    auto map = cxEmptyMap;
+
+    EXPECT_EQ(map->size, 0);
+}
+
+TEST(EmptyMap, Iterator) {
+    auto map = cxEmptyMap;
+
+    auto it1 = cxMapIterator(map);
+    auto it2 = cxMapIteratorValues(map);
+    auto it3 = cxMapIteratorKeys(map);
+    auto it4 = cxMapMutIterator(map);
+    auto it5 = cxMapMutIteratorValues(map);
+    auto it6 = cxMapMutIteratorKeys(map);
+
+    EXPECT_FALSE(cxIteratorValid(it1));
+    EXPECT_FALSE(cxIteratorValid(it2));
+    EXPECT_FALSE(cxIteratorValid(it3));
+    EXPECT_FALSE(cxIteratorValid(it4));
+    EXPECT_FALSE(cxIteratorValid(it5));
+    EXPECT_FALSE(cxIteratorValid(it6));
+
+    int c = 0;
+    cx_foreach(void*, data, it1) c++;
+    cx_foreach(void*, data, it2) c++;
+    cx_foreach(void*, data, it3) c++;
+    cx_foreach(void*, data, it4) c++;
+    cx_foreach(void*, data, it5) c++;
+    cx_foreach(void*, data, it6) c++;
+    EXPECT_EQ(c, 0);
+}
+
+TEST(EmptyMap, NoOps) {
+    auto map = cxEmptyMap;
+
+    ASSERT_NO_FATAL_FAILURE(cxMapClear(map));
+    ASSERT_NO_FATAL_FAILURE(cxMapRehash(map));
+    ASSERT_NO_FATAL_FAILURE(cxMapDestroy(map));
+}
+
+TEST(EmptyMap, Get) {
+    auto map = cxEmptyMap;
+
+    CxHashKey key = cx_hash_key_str("test");
+    EXPECT_EQ(cxMapGet(map, key), nullptr);
+}