Fix copyright lines

[folly.git] / folly / test / ConstexprMathTest.cpp

diff --git a/folly/test/ConstexprMathTest.cpp b/folly/test/ConstexprMathTest.cpp
index 6c0c71f9c9a2f277b22dcc6a6853b81cf6684c00..c225852783288a5c247d2f21a046c8fc0037af17 100644 (file)
--- a/folly/test/ConstexprMathTest.cpp
+++ b/folly/test/ConstexprMathTest.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Facebook, Inc.
+ * Copyright 2017-present Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -41,6 +41,18 @@ TEST_F(ConstexprMathTest, constexpr_max) {
   EXPECT_TRUE((std::is_same<const uint16_t, decltype(a)>::value));
 }
 
+TEST_F(ConstexprMathTest, constexpr_clamp) {
+  constexpr auto lo = uint16_t(3);
+  constexpr auto hi = uint16_t(7);
+  constexpr auto x = folly::constexpr_clamp(uint16_t(2), lo, hi);
+  constexpr auto y = folly::constexpr_clamp(uint16_t(5), lo, hi);
+  constexpr auto z = folly::constexpr_clamp(uint16_t(8), lo, hi);
+  EXPECT_EQ(3, x);
+  EXPECT_EQ(5, y);
+  EXPECT_EQ(7, z);
+  EXPECT_TRUE((std::is_same<const uint16_t, decltype(y)>::value));
+}
+
 TEST_F(ConstexprMathTest, constexpr_abs_unsigned) {
   constexpr auto v = uint32_t(17);
   constexpr auto a = folly::constexpr_abs(v);
@@ -110,3 +122,74 @@ TEST_F(ConstexprMathTest, constexpr_log2_64) {
   EXPECT_EQ(6ull, a);
   EXPECT_TRUE((std::is_same<decltype(v), decltype(a)>::value));
 }
+
+TEST_F(ConstexprMathTest, constexpr_log2_ceil_1) {
+  constexpr auto v = 1ull;
+  constexpr auto a = folly::constexpr_log2_ceil(v);
+  EXPECT_EQ(0ull, a);
+  EXPECT_TRUE((std::is_same<decltype(v), decltype(a)>::value));
+}
+
+TEST_F(ConstexprMathTest, constexpr_log2_ceil_2) {
+  constexpr auto v = 2ull;
+  constexpr auto a = folly::constexpr_log2_ceil(v);
+  EXPECT_EQ(1ull, a);
+  EXPECT_TRUE((std::is_same<decltype(v), decltype(a)>::value));
+}
+
+TEST_F(ConstexprMathTest, constexpr_log2_ceil_3) {
+  constexpr auto v = 3ull;
+  constexpr auto a = folly::constexpr_log2_ceil(v);
+  EXPECT_EQ(2ull, a);
+  EXPECT_TRUE((std::is_same<decltype(v), decltype(a)>::value));
+}
+
+TEST_F(ConstexprMathTest, constexpr_log2_ceil_63) {
+  constexpr auto v = 63ull;
+  constexpr auto a = folly::constexpr_log2_ceil(v);
+  EXPECT_EQ(6ull, a);
+  EXPECT_TRUE((std::is_same<decltype(v), decltype(a)>::value));
+}
+
+TEST_F(ConstexprMathTest, constexpr_log2_ceil_64) {
+  constexpr auto v = 64ull;
+  constexpr auto a = folly::constexpr_log2_ceil(v);
+  EXPECT_EQ(6ull, a);
+  EXPECT_TRUE((std::is_same<decltype(v), decltype(a)>::value));
+}
+
+TEST_F(ConstexprMathTest, constexpr_ceil) {
+  {
+    constexpr auto roundable = 20ull;
+    constexpr auto round = 6ull;
+    constexpr auto rounded = folly::constexpr_ceil(roundable, round);
+    EXPECT_EQ(24ull, rounded);
+  }
+  {
+    constexpr auto roundable = -20ll;
+    constexpr auto round = 6ll;
+    constexpr auto rounded = folly::constexpr_ceil(roundable, round);
+    EXPECT_EQ(-18ll, rounded);
+  }
+  {
+    constexpr auto roundable = -20ll;
+    constexpr auto round = 0ll;
+    constexpr auto rounded = folly::constexpr_ceil(roundable, round);
+    EXPECT_EQ(-20ll, rounded);
+  }
+}
+
+TEST_F(ConstexprMathTest, constexpr_pow) {
+  {
+    constexpr auto a = folly::constexpr_pow(uint64_t(0), 15);
+    EXPECT_EQ(0, a);
+  }
+  {
+    constexpr auto a = folly::constexpr_pow(uint64_t(15), 0);
+    EXPECT_EQ(1, a);
+  }
+  {
+    constexpr auto a = folly::constexpr_pow(uint64_t(2), 6);
+    EXPECT_EQ(64, a);
+  }
+}