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77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
//===--- ValueEnumeratorTest.cpp ------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Basic/ValueEnumerator.h"
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#include "swift/Basic/OptionSet.h"
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#include "swift/Basic/Range.h"
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#include "gtest/gtest.h"
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using namespace swift;
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TEST(ValueEnumerator, basic) {
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{
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ValueEnumerator<int> Trans;
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// Check that indexing is persistent.
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EXPECT_EQ(Trans.getIndex(99), Trans.getIndex(99));
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EXPECT_EQ(Trans.getIndex(100), Trans.getIndex(100));
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// Check that we don't have collisions.
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bool SameIndex = Trans.getIndex(82) == Trans.getIndex(73);
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EXPECT_FALSE(SameIndex);
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// Check that invalidation works.
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// After invalidation the old index must not be equal to the new index.
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size_t oldIndex = Trans.getIndex(99);
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Trans.invalidateValue(99);
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size_t newIndex = Trans.getIndex(99);
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EXPECT_FALSE(newIndex == oldIndex);
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}
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{
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const char *string_1 = "hello";
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const char *string_2 = "goodbye";
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const char *string_3 = ":-)";
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ValueEnumerator<const char *> Trans;
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EXPECT_EQ(Trans.getIndex(nullptr), Trans.getIndex(nullptr));
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EXPECT_EQ(Trans.getIndex(string_1), Trans.getIndex(string_1));
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EXPECT_EQ(Trans.getIndex(string_2), Trans.getIndex(string_2));
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// Check that invalidation works.
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size_t oldIndex = Trans.getIndex(string_3);
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Trans.invalidateValue(string_3);
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size_t newIndex = Trans.getIndex(string_3);
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EXPECT_FALSE(newIndex == oldIndex);
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// Check that different values don't give the same index.
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EXPECT_FALSE(Trans.getIndex(string_2) == Trans.getIndex(string_3));
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}
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{
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ValueEnumerator<int> Trans;
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// Check a bunch of integers.
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for (int i = 1; i < 10000; i++) {
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EXPECT_TRUE(Trans.getIndex(0) != Trans.getIndex(i));
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}
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// Check that there are no accidental collisions.
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for (int i = 0; i < 10000; i++) {
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for (int j = 1; j < 10; j++) {
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EXPECT_TRUE(Trans.getIndex(i) != Trans.getIndex(i + j));
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}
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}
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// Check that indexing is still persistent.
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EXPECT_EQ(Trans.getIndex(100), Trans.getIndex(100));
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}
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}
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