sapling/eden/fs/utils/test/IDGenTest.cpp
Adam Simpkins aa5e6c7295 update license headers in C++ files
Summary:
Update the copyright & license headers in C++ files to reflect the
relicensing to GPLv2

Reviewed By: wez

Differential Revision: D15487078

fbshipit-source-id: 19f24c933a64ecad0d3a692d0f8d2a38b4194b1d
2019-06-19 17:02:45 -07:00

34 lines
778 B
C++

/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This software may be used and distributed according to the terms of the
* GNU General Public License version 2.
*/
#include "eden/fs/utils/IDGen.h"
#include <gtest/gtest.h>
using namespace facebook::eden;
TEST(IDGenTest, initialIDIsNonZero) {
EXPECT_NE(0, generateUniqueID());
}
TEST(IDGenTest, producesUniqueIDs) {
auto id1 = generateUniqueID();
auto id2 = generateUniqueID();
auto id3 = generateUniqueID();
EXPECT_NE(0, id1);
EXPECT_NE(id1, id2);
EXPECT_NE(id2, id3);
EXPECT_NE(id2, id3);
}
TEST(IDGenTest, monotonic) {
auto previous = generateUniqueID();
for (int i = 0; i < 100000; ++i) {
auto next = generateUniqueID();
EXPECT_EQ(previous + 1, next);
previous = next;
}
}