1 files changed, 36 insertions, 0 deletions

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+#include "gtest/gtest.h"
+#include "Random.h"
+
+TEST(RandomTests, RandomInRange) {
+        int random1 = Random::RandInt(0, 1 << 30);
+        int random2 = Random::RandInt(0, 1 << 30);
+        ASSERT_NE(random1, random2);
+        if (random1 > random2) std::swap(random1, random2);
+        int random3 = Random::RandInt(random1, random2);
+        std::cout << random1 << " " << random2 << " " << random3 << std::endl;
+        ASSERT_GE(random3, random1);
+        ASSERT_LE(random3, random2);
+}
+
+TEST(RandomTests, SeedWorks) {
+        Random::SetSeed(0);
+        ASSERT_EQ(2531011, Random::RandInt(0, 1 << 30));
+        ASSERT_EQ(505908858, Random::RandInt(0, 1 << 30));
+        ASSERT_EQ(318135124, Random::RandInt(0, 1 << 30));
+        ASSERT_EQ(159719620, Random::RandInt(0, 1 << 30));
+        Random::SetSeed(0);
+        ASSERT_EQ(2531011, Random::RandInt(0, 1 << 30));
+}
+
+TEST(RandomTests, SeedChangesInitialValue) {
+        Random::SetSeed(0);
+        int random1 = Random::RandInt(0, 1 << 30);
+        Random::SetSeed(1);
+        int random2 = Random::RandInt(0, 1 << 30);
+        ASSERT_NE(random1, random2);
+
+        Random::SetSeed(2);
+        int random3 = Random::RandInt(0, 1 << 30);
+        ASSERT_NE(random3, random1);
+        ASSERT_NE(random3, random2);
+}
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