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fbdb46f5cb
Reviewed By: chadaustin Differential Revision: D17872966 fbshipit-source-id: cd60a364a2146f0dadbeca693b1d4a5d7c97ff63
98 lines
2.2 KiB
C++
98 lines
2.2 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#include "eden/fs/utils/CoverageSet.h"
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#include <gtest/gtest.h>
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using namespace facebook::eden;
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TEST(CoverageSetTest, empty_ranges_are_always_covered) {
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CoverageSet s;
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EXPECT_TRUE(s.covers(0, 0));
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EXPECT_TRUE(s.covers(1, 1));
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}
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TEST(CoverageSetTest, set_is_empty_after_adding_empty_ranges) {
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CoverageSet s;
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s.add(0, 0);
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s.add(2, 2);
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EXPECT_TRUE(s.empty());
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}
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TEST(CoverageSetTest, set_is_empty_after_clearing) {
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CoverageSet s;
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s.add(0, 10);
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EXPECT_FALSE(s.empty());
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s.clear();
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EXPECT_TRUE(s.empty());
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EXPECT_FALSE(s.covers(0, 10));
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}
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TEST(CoverageSetTest, tracks_ranges) {
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CoverageSet s;
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EXPECT_FALSE(s.covers(0, 1));
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EXPECT_FALSE(s.covers(0, 2));
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EXPECT_FALSE(s.covers(1, 2));
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s.add(0, 1);
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s.add(0, 2);
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EXPECT_TRUE(s.covers(0, 2));
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EXPECT_FALSE(s.covers(0, 5));
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s.add(3, 5);
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EXPECT_TRUE(s.covers(3, 5));
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EXPECT_TRUE(s.covers(3, 4));
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EXPECT_FALSE(s.covers(3, 6));
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EXPECT_FALSE(s.covers(0, 5));
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s.add(2, 3);
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EXPECT_TRUE(s.covers(0, 3));
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EXPECT_TRUE(s.covers(3, 5));
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EXPECT_TRUE(s.covers(0, 4));
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EXPECT_TRUE(s.covers(0, 5));
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EXPECT_FALSE(s.covers(0, 6));
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}
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TEST(CoverageSetTest, sequential_ranges_merge) {
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CoverageSet s;
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EXPECT_EQ(0, s.getIntervalCount());
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s.add(0, 10);
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EXPECT_EQ(1, s.getIntervalCount());
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s.add(10, 20);
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EXPECT_EQ(1, s.getIntervalCount());
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s.add(20, 30);
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EXPECT_EQ(1, s.getIntervalCount());
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s.add(30, 40);
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EXPECT_EQ(1, s.getIntervalCount());
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EXPECT_TRUE(s.covers(0, 40));
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}
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TEST(CoverageSetTest, merges_ranges_on_both_sides) {
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CoverageSet s;
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s.add(0, 2);
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s.add(3, 5);
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EXPECT_EQ(2, s.getIntervalCount());
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s.add(2, 3);
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EXPECT_EQ(1, s.getIntervalCount());
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EXPECT_TRUE(s.covers(0, 5));
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}
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TEST(CoverageSetTest, merge_can_replace_many_nodes) {
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CoverageSet s;
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s.add(1, 2);
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s.add(3, 4);
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s.add(5, 6);
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s.add(7, 8);
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EXPECT_EQ(4, s.getIntervalCount());
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s.add(2, 7);
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EXPECT_EQ(1, s.getIntervalCount());
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EXPECT_FALSE(s.covers(0, 2));
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EXPECT_FALSE(s.covers(7, 9));
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EXPECT_TRUE(s.covers(1, 8));
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}
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