1 files changed, 53 insertions, 0 deletions
diff --git a/Client/ThirdParty/fpm/tests/arithmetic.cpp b/Client/ThirdParty/fpm/tests/arithmetic.cpp
new file mode 100644
index 0000000..c49222a
--- /dev/null
+++ b/Client/ThirdParty/fpm/tests/arithmetic.cpp
@@ -0,0 +1,53 @@
+#include "common.hpp"
+
+TEST(arithmethic, negation)
+{
+    using P = fpm::fixed_24_8;
+
+    EXPECT_EQ(P(-13.125), -P( 13.125));
+    EXPECT_EQ(P( 13.125), -P(-13.125));
+}
+
+TEST(arithmethic, addition)
+{
+    using P = fpm::fixed_24_8;
+
+    EXPECT_EQ(P(10.75), P(3.5) + P(7.25));
+}
+
+TEST(arithmethic, subtraction)
+{
+    using P = fpm::fixed_24_8;
+
+    EXPECT_EQ(P(-3.75), P(3.5) - P(7.25));
+}
+
+TEST(arithmethic, multiplication)
+{
+    using P = fpm::fixed_24_8;
+
+    EXPECT_EQ(P(-25.375), P(3.5) * P(-7.25));
+}
+
+TEST(arithmethic, division)
+{
+    using P = fpm::fixed_24_8;
+
+    EXPECT_EQ(P(3.5 / 7.25), P(3.5) / P(7.25));
+    EXPECT_EQ(P(-3.5 / 7.25), P(-3.5) / P(7.25));
+    EXPECT_EQ(P(3.5 / -7.25), P(3.5) / P(-7.25));
+    EXPECT_EQ(P(-3.5 / -7.25), P(-3.5) / P(-7.25));
+
+#ifndef NDEBUG
+    EXPECT_DEATH(P(1) / P(0), "");
+#endif
+}
+
+TEST(arithmethic, division_range)
+{
+    using P = fpm::fixed<std::int32_t, std::int64_t, 12>;
+
+    // These calculation will overflow and produce
+    // wrong results without the intermediate type.
+    EXPECT_EQ(P(32), P(256) / P(8));
+}
+\ No newline at end of file