1 files changed, 58 insertions, 0 deletions
diff --git a/asl/tests/hash_tests.cpp b/asl/tests/hash_tests.cpp
new file mode 100644
index 0000000..d0df77a
--- /dev/null
+++ b/asl/tests/hash_tests.cpp
@@ -0,0 +1,58 @@
+#include "asl/testing/testing.hpp"
+#include "asl/hash.hpp"
+#include "asl/string_view.hpp"
+#include "asl/string.hpp"
+
+static_assert(asl::hashable<uint8_t>);
+static_assert(asl::hashable<uint16_t>);
+static_assert(asl::hashable<uint32_t>);
+static_assert(asl::hashable<uint64_t>);
+static_assert(asl::hashable<uint128_t>);
+
+static_assert(asl::hashable<int8_t>);
+static_assert(asl::hashable<int16_t>);
+static_assert(asl::hashable<int32_t>);
+static_assert(asl::hashable<int64_t>);
+
+ASL_TEST(integers)
+{
+    uint64_t a = asl::hash_value<uint16_t>(45);
+    uint64_t b = asl::hash_value<uint16_t>(45);
+    uint64_t c = asl::hash_value<uint16_t>(46);
+    uint64_t d = asl::hash_value<uint32_t>(45);
+
+    ASL_TEST_EXPECT(a == b);
+    ASL_TEST_EXPECT(a != c);
+    ASL_TEST_EXPECT(a != d);
+}
+
+static_assert(asl::hashable<bool>);
+
+ASL_TEST(bool)
+{
+    ASL_TEST_EXPECT(asl::hash_value(true) == asl::hash_value(true));
+    ASL_TEST_EXPECT(asl::hash_value(false) == asl::hash_value(false));
+    ASL_TEST_EXPECT(asl::hash_value(true) != asl::hash_value(false));
+}
+
+static_assert(asl::hashable<asl::string_view>);
+static_assert(asl::hashable<asl::string<>>);
+
+ASL_TEST(strings)
+{
+    ASL_TEST_EXPECT(asl::hash_value("hello"_sv) == asl::hash_value("hello"_sv));
+    ASL_TEST_EXPECT(asl::hash_value("hello"_sv) != asl::hash_value("hello "_sv));
+    ASL_TEST_EXPECT(asl::hash_value("hello"_sv) != asl::hash_value("HELLO"_sv));
+    
+    ASL_TEST_EXPECT(asl::hash_value(asl::string("hello"_sv)) == asl::hash_value(asl::string("hello"_sv)));
+    ASL_TEST_EXPECT(asl::hash_value(asl::string("hello"_sv)) != asl::hash_value(asl::string("hello "_sv)));
+    ASL_TEST_EXPECT(asl::hash_value(asl::string("hello"_sv)) != asl::hash_value(asl::string("HELLO"_sv)));
+
+    ASL_TEST_EXPECT(asl::hash_value("hello"_sv) == asl::hash_value(asl::string("hello"_sv)));
+}
+
+// @Todo span, buffer (add combine_contiguous (optimize uniquely_represented))
+// @Todo enum classes
+// @Todo option (optimize uniquely_represented + has_niche)
+// @Todo status, status_or
+// @Todo box