refactor: start to refactor project

testbench/yycc/constraint.cpp

@@ -0,0 +1,49 @@
+#include <gtest/gtest.h>
+#include <yycc.hpp>
+#include <yycc/constraint.hpp>
+#include <yycc/prelude/rust.hpp>
+
+#define CONSTRAINT ::yycc::constraint::Constraint
+
+namespace yycctest::constraint {
+
+    template<typename T>
+    bool check(const T& value) {
+        return false;
+    }
+
+    template<typename T>
+    T clamp(const T& value) {
+        return value;
+    }
+
+    TEST(Constraint, Normal) {
+        CONSTRAINT<u32> instance(check<u32>, clamp<u32>);
+        EXPECT_TRUE(instance.support_check());
+        EXPECT_TRUE(instance.support_clamp());
+        EXPECT_FALSE(instance.check(0));
+        EXPECT_EQ(instance.clamp(0), 0);
+    }
+
+    TEST(Constraint, SomeNone) {
+        {
+            CONSTRAINT<u32> instance(check<u32>, nullptr);
+            EXPECT_TRUE(instance.support_check());
+            EXPECT_FALSE(instance.support_clamp());
+            EXPECT_FALSE(instance.check(0));
+        }
+        {
+            CONSTRAINT<u32> instance(nullptr, clamp<u32>);
+            EXPECT_FALSE(instance.support_check());
+            EXPECT_TRUE(instance.support_clamp());
+            EXPECT_EQ(instance.clamp(0), 0);
+        }
+    }
+
+    TEST(Constraint, AllNone) {
+        CONSTRAINT<u32> instance(nullptr, nullptr);
+        EXPECT_FALSE(instance.support_check());
+        EXPECT_FALSE(instance.support_clamp());
+    }
+
+}