cpp-mathematic-limit/test/dyn_limit_test.cxx

//
//  dyn_limit_test.cxx
//  limit-test
//
//  Created by Sam Jaffe on 12/9/23.
//

#include "math/dyn_limit.h"

#include "xcode_gtest_helper.h"

TEST(DynBoundNumber, ConstructsInbounds) {
  EXPECT_EQ(math::DynBound<int>(0, -5, +7), 0);
}

TEST(DynBoundNumber, ClampsOOBLow) {
  EXPECT_EQ(math::DynBound<int>(-6, -5, +7), -5);
}

TEST(DynBoundNumber, ClampsOOBHigh) {
  EXPECT_EQ(math::DynBound<int>(+8, -5, +7), +7);
}

TEST(DynBoundNumber, IncrementIsLimitSafe) {
  math::DynBound<int> value(+7, -5, +7);
  EXPECT_EQ(value, +7);
  EXPECT_EQ(value++, +7);
  EXPECT_EQ(value, +7);
}

TEST(DynBoundNumber, DecrementIsLimitSafe) {
  math::DynBound<int> value(-5, -5, +7);
  EXPECT_EQ(value, -5);
  EXPECT_EQ(value--, -5);
  EXPECT_EQ(value, -5);
}