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indexrange_test.cpp
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#include <gtest/gtest.h>
#include "util/indexrange.h"
namespace mixxx {
class IndexRangeTest : public testing::Test {
};
TEST_F(IndexRangeTest, empty) {
EXPECT_TRUE(IndexRange().empty());
EXPECT_TRUE(IndexRange::between(-1, -1).empty());
EXPECT_FALSE(IndexRange::between(0, -1).empty());
EXPECT_TRUE(IndexRange::between(0, 0).empty());
EXPECT_FALSE(IndexRange::between(1, 0).empty());
EXPECT_TRUE(IndexRange::between(1, 1).empty());
EXPECT_FALSE(IndexRange::between(1, -1).empty());
EXPECT_FALSE(IndexRange::between(-1, 0).empty());
EXPECT_FALSE(IndexRange::between(0, 1).empty());
EXPECT_FALSE(IndexRange::between(-1, 1).empty());
}
TEST_F(IndexRangeTest, orientation) {
EXPECT_EQ(IndexRange::Orientation::Empty, IndexRange().orientation());
EXPECT_EQ(IndexRange::Orientation::Empty, IndexRange::between(1, 1).orientation());
EXPECT_EQ(IndexRange::Orientation::Empty, IndexRange::between(-1, -1).orientation());
EXPECT_EQ(IndexRange::Orientation::Forward, IndexRange::between(-4, 9).orientation());
EXPECT_EQ(IndexRange::Orientation::Backward, IndexRange::between(-4, -10).orientation());
}
TEST_F(IndexRangeTest, length) {
EXPECT_EQ(0, IndexRange().length());
EXPECT_EQ(0, IndexRange::between(1, 1).length());
EXPECT_EQ(0, IndexRange::between(-1, -1).length());
EXPECT_EQ(1, IndexRange::between(2, 1).length());
EXPECT_EQ(3, IndexRange::between(1, -2).length());
EXPECT_EQ(1, IndexRange::between(-1, -2).length());
EXPECT_EQ(1, IndexRange::between(0, 1).length());
EXPECT_EQ(5, IndexRange::between(0, 5).length());
EXPECT_EQ(6, IndexRange::between(1, 7).length());
EXPECT_EQ(2, IndexRange::between(-1, 1).length());
EXPECT_EQ(7, IndexRange::between(-2, 5).length());
EXPECT_EQ(1, IndexRange::between(-2, -1).length());
}
TEST_F(IndexRangeTest, containsIndex) {
EXPECT_FALSE(IndexRange().containsIndex(0));
EXPECT_FALSE(IndexRange().containsIndex(-1));
EXPECT_FALSE(IndexRange().containsIndex(2));
EXPECT_TRUE(IndexRange::between(1, -2).containsIndex(0));
EXPECT_TRUE(IndexRange::between(1, -2).containsIndex(1));
EXPECT_FALSE(IndexRange::between(1, -2).containsIndex(-2));
EXPECT_TRUE(IndexRange::between(-2, 5).containsIndex(-2));
EXPECT_TRUE(IndexRange::between(-2, 5).containsIndex(0));
EXPECT_TRUE(IndexRange::between(-2, 5).containsIndex(4));
EXPECT_FALSE(IndexRange::between(-2, 5).containsIndex(5));
}
TEST_F(IndexRangeTest, clampIndex) {
EXPECT_EQ(-1, IndexRange::between(-1, 1).clampIndex(-2));
EXPECT_EQ(-1, IndexRange::between(-1, 1).clampIndex(-1));
EXPECT_EQ(0, IndexRange::between(-1, 1).clampIndex(0));
EXPECT_EQ(1, IndexRange::between(-1, 1).clampIndex(1));
EXPECT_EQ(1, IndexRange::between(-1, 1).clampIndex(2));
EXPECT_EQ(-1, IndexRange::between(-1, -1).clampIndex(-2));
EXPECT_EQ(-1, IndexRange::between(-1, -1).clampIndex(2));
EXPECT_EQ(0, IndexRange::between(0, 0).clampIndex(-2));
EXPECT_EQ(0, IndexRange::between(0, 0).clampIndex(2));
EXPECT_EQ(1, IndexRange::between(1, 1).clampIndex(-2));
EXPECT_EQ(1, IndexRange::between(1, 1).clampIndex(2));
}
TEST_F(IndexRangeTest, startend) {
EXPECT_EQ(-1, IndexRange::between(-1, 1).start());
EXPECT_EQ(1, IndexRange::between(-1, 1).end());
EXPECT_EQ(1, IndexRange::between(1, -1).start());
EXPECT_EQ(-1, IndexRange::between(1, -1).end());
EXPECT_EQ(-1, IndexRange::between(-1, -1).start());
EXPECT_EQ(-1, IndexRange::between(-1, -1).end());
EXPECT_EQ(0, IndexRange::between(0, 0).start());
EXPECT_EQ(0, IndexRange::between(0, 0).end());
EXPECT_EQ(1, IndexRange::between(1, 1).start());
EXPECT_EQ(1, IndexRange::between(1, 1).end());
}
TEST_F(IndexRangeTest, shrinkFront) {
auto r1 = IndexRange::between(-4, 9);
r1.shrinkFront(3);
EXPECT_EQ(IndexRange::between(-1, 9), r1);
r1.shrinkFront(0);
EXPECT_EQ(IndexRange::between(-1, 9), r1);
r1.shrinkFront(r1.length());
EXPECT_TRUE(r1.empty());
auto r2 = IndexRange::between(9, -4);
r2.shrinkFront(3);
EXPECT_EQ(IndexRange::between(6, -4), r2);
r2.shrinkFront(0);
EXPECT_EQ(IndexRange::between(6, -4), r2);
r2.shrinkFront(r2.length());
EXPECT_TRUE(r2.empty());
}
TEST_F(IndexRangeTest, splitAndShrinkFront) {
auto r1 = IndexRange::between(-4, 9);
EXPECT_EQ(IndexRange::between(-4, -1), r1.splitAndShrinkFront(3));
EXPECT_EQ(IndexRange::between(-1, 9), r1);
EXPECT_TRUE(r1.splitAndShrinkFront(0).empty());
EXPECT_EQ(IndexRange::between(-1, 9), r1);
EXPECT_EQ(IndexRange::between(-1, 9), r1.splitAndShrinkFront(r1.length()));
EXPECT_TRUE(r1.empty());
auto r2 = IndexRange::between(9, -4);
EXPECT_EQ(IndexRange::between(9, 6), r2.splitAndShrinkFront(3));
EXPECT_EQ(IndexRange::between(6, -4), r2);
EXPECT_TRUE(r2.splitAndShrinkFront(0).empty());
EXPECT_EQ(IndexRange::between(6, -4), r2);
EXPECT_EQ(IndexRange::between(6, -4), r2.splitAndShrinkFront(r2.length()));
EXPECT_TRUE(r2.empty());
}
TEST_F(IndexRangeTest, shrinkBack) {
auto r1 = IndexRange::between(-4, 9);
r1.shrinkBack(3);
EXPECT_EQ(IndexRange::between(-4, 6), r1);
r1.shrinkBack(0);
EXPECT_EQ(IndexRange::between(-4, 6), r1);
r1.shrinkBack(r1.length());
EXPECT_TRUE(r1.empty());
auto r2 = IndexRange::between(9, -4);
r2.shrinkBack(3);
EXPECT_EQ(IndexRange::between(9, -1), r2);
r2.shrinkBack(0);
EXPECT_EQ(IndexRange::between(9, -1), r2);
r2.shrinkBack(r2.length());
EXPECT_TRUE(r2.empty());
}
TEST_F(IndexRangeTest, splitAndShrinkBack) {
auto r1 = IndexRange::between(-4, 9);
EXPECT_EQ(IndexRange::between(6, 9), r1.splitAndShrinkBack(3));
EXPECT_EQ(IndexRange::between(-4, 6), r1);
EXPECT_TRUE(r1.splitAndShrinkBack(0).empty());
EXPECT_EQ(IndexRange::between(-4, 6), r1);
EXPECT_EQ(IndexRange::between(-4, 6), r1.splitAndShrinkBack(r1.length()));
EXPECT_TRUE(r1.empty());
auto r2 = IndexRange::between(9, -4);
EXPECT_EQ(IndexRange::between(-1, -4), r2.splitAndShrinkBack(3));
EXPECT_EQ(IndexRange::between(9, -1), r2);
EXPECT_TRUE(r2.splitAndShrinkBack(0).empty());
EXPECT_EQ(IndexRange::between(9, -1), r2);
EXPECT_EQ(IndexRange::between(9, -1), r2.splitAndShrinkBack(r2.length()));
EXPECT_TRUE(r2.empty());
}
TEST_F(IndexRangeTest, equal) {
EXPECT_TRUE(IndexRange() == IndexRange());
EXPECT_FALSE(IndexRange() != IndexRange());
EXPECT_TRUE(IndexRange::between(3, 3) == IndexRange::between(3, 3));
EXPECT_FALSE(IndexRange::between(3, 3) != IndexRange::between(3, 3));
EXPECT_FALSE(IndexRange::between(2, 2) == IndexRange::between(3, 3));
EXPECT_TRUE(IndexRange::between(2, 2) != IndexRange::between(3, 3));
EXPECT_TRUE(IndexRange::forward(-1, 3) == IndexRange::between(-1, 2));
EXPECT_FALSE(IndexRange::forward(-1, 3) != IndexRange::between(-1, 2));
EXPECT_TRUE(IndexRange::backward(-1, 3) == IndexRange::between(-1, -4));
EXPECT_FALSE(IndexRange::backward(-1, 3) != IndexRange::between(-1, -4));
EXPECT_FALSE(IndexRange::between(-1, 3) == reverse(IndexRange::between(-1, 3)));
EXPECT_TRUE(IndexRange::between(-1, 3) != reverse(IndexRange::between(-1, 3)));
EXPECT_FALSE(IndexRange::between(0, 0) == IndexRange::between(1, 1));
EXPECT_TRUE(IndexRange::between(0, 0) != IndexRange::between(1, 1));
}
TEST_F(IndexRangeTest, lessOrEqual) {
EXPECT_FALSE(IndexRange::between(3, 3) <= IndexRange::between(-2, 2));
EXPECT_TRUE(IndexRange::between(0, 0) <= IndexRange::between(2, -1));
EXPECT_TRUE(IndexRange::between(2, 2) <= IndexRange::between(2, -1));
EXPECT_FALSE(IndexRange::between(-2, -2) <= IndexRange::between(2, -1));
EXPECT_TRUE(IndexRange::between(-2, 1) <= IndexRange::between(-2, 2));
EXPECT_TRUE(IndexRange::between(1, -2) <= IndexRange::between(2, -2));
EXPECT_FALSE(IndexRange::between(-2, 1) <= IndexRange::between(-1, 2));
EXPECT_FALSE(IndexRange::between(1, -2) <= IndexRange::between(2, -1));
EXPECT_FALSE(IndexRange::between(-2, 1) <= IndexRange::between(0, 1));
EXPECT_FALSE(IndexRange::between(-2, 1) <= IndexRange::between(1, 2));
EXPECT_FALSE(IndexRange::between(-2, 1) <= IndexRange::between(1, 1));
EXPECT_FALSE(IndexRange::between(3, 3) <= IndexRange::between(-2, 1));
EXPECT_FALSE(IndexRange::between(3, 3) <= IndexRange::between(1, -2));
EXPECT_TRUE(IndexRange::between(1, 1) <= IndexRange::between(-2, 1));
EXPECT_TRUE(IndexRange::between(1, 1) <= IndexRange::between(1, -2));
}
TEST_F(IndexRangeTest, greaterOrEqual) {
EXPECT_TRUE(IndexRange::between(-2, 2) >= IndexRange());
EXPECT_TRUE(IndexRange::between(-2, 2) >= IndexRange::between(-2, 1));
EXPECT_FALSE(IndexRange::between(-1, 2) >= IndexRange::between(-2, 1));
EXPECT_FALSE(IndexRange::between(2, -1) >= IndexRange::between(1, -2));
EXPECT_FALSE(IndexRange::between(0, 1) >= IndexRange::between(-2, 1));
EXPECT_FALSE(IndexRange::between(1, 2) >= IndexRange::between(-2, 1));
EXPECT_FALSE(IndexRange::between(1, 1) >= IndexRange::between(-2, 1));
EXPECT_FALSE(IndexRange::between(-2, 1) >= IndexRange::between(3, 3));
EXPECT_FALSE(IndexRange::between(1, -2) >= IndexRange::between(3, 3));
EXPECT_TRUE(IndexRange::between(-2, 1) >= IndexRange::between(1, 1));
EXPECT_TRUE(IndexRange::between(1, -2) >= IndexRange::between(1, 1));
}
TEST_F(IndexRangeTest, reverse) {
EXPECT_EQ(IndexRange(), reverse(IndexRange()));
EXPECT_EQ(IndexRange::between(1, 1), reverse(IndexRange::between(1, 1)));
EXPECT_EQ(IndexRange::between(-1, -1), reverse(IndexRange::between(-1, -1)));
EXPECT_EQ(IndexRange::between(8, -5), reverse(IndexRange::between(-4, 9)));
EXPECT_EQ(IndexRange::between(-9, -3), reverse(IndexRange::between(-4, -10)));
}
TEST_F(IndexRangeTest, intersect) {
EXPECT_EQ(IndexRange::between(0, 0), intersect(IndexRange::between(-1, 0), IndexRange::between(0, 1)));
EXPECT_EQ(IndexRange::between(-1, 1), intersect(IndexRange::between(-1, 1), IndexRange::between(-1, 1)));
EXPECT_EQ(IndexRange::between(-1, 1), intersect(IndexRange::between(-2, 1), IndexRange::between(-1, 2)));
EXPECT_TRUE(intersect(IndexRange::between(-2, -1), IndexRange::between(1, 2)).empty());
EXPECT_EQ(IndexRange::between(0, 0), intersect(IndexRange::between(0, -1), IndexRange::between(1, 0)));
EXPECT_EQ(IndexRange::between(1, -1), intersect(IndexRange::between(1, -1), IndexRange::between(1, -1)));
EXPECT_EQ(IndexRange::between(1, -1), intersect(IndexRange::between(2, -1), IndexRange::between(1, -2)));
EXPECT_TRUE(intersect(IndexRange::between(-1, -2), IndexRange::between(2, 1)).empty());
EXPECT_EQ(IndexRange(), intersect(IndexRange::between(1, 2), IndexRange::between(3, 4)));
EXPECT_EQ(IndexRange(), intersect(IndexRange::between(-1, -2), IndexRange::between(-3, -4)));
EXPECT_EQ(IndexRange(), intersect(IndexRange(), IndexRange::between(1, 2)));
EXPECT_EQ(IndexRange(), intersect(IndexRange(), IndexRange::between(-1, -2)));
EXPECT_EQ(IndexRange::between(1, 1), intersect(IndexRange::between(1, 1), IndexRange::between(1, 1)));
EXPECT_EQ(IndexRange::between(-1, -1), intersect(IndexRange::between(-1, -1), IndexRange::between(-1, -1)));
EXPECT_EQ(IndexRange::between(1, 1), intersect(IndexRange::between(0, 1), IndexRange::between(1, 1)));
EXPECT_EQ(IndexRange::between(-1, -1), intersect(IndexRange::between(0, -1), IndexRange::between(-1, -1)));
}
TEST_F(IndexRangeTest, span) {
EXPECT_EQ(IndexRange::between(-1, 1), span(IndexRange::between(-1, 0), IndexRange::between(0, 1)));
EXPECT_EQ(IndexRange::between(-1, 1), span(IndexRange::between(-1, 1), IndexRange::between(-1, 1)));
EXPECT_EQ(IndexRange::between(-2, 2), span(IndexRange::between(-2, 1), IndexRange::between(-1, 2)));
EXPECT_EQ(IndexRange::between(-2, 2), span(IndexRange::between(-2, -1), IndexRange::between(1, 2)));
EXPECT_EQ(IndexRange::between(1, -1), span(IndexRange::between(0, -1), IndexRange::between(1, 0)));
EXPECT_EQ(IndexRange::between(1, -1), span(IndexRange::between(1, -1), IndexRange::between(1, -1)));
EXPECT_EQ(IndexRange::between(2, -2), span(IndexRange::between(1, -2), IndexRange::between(2, -1)));
EXPECT_EQ(IndexRange::between(2, -2), span(IndexRange::between(-1, -2), IndexRange::between(2, 1)));
EXPECT_EQ(IndexRange::between(-1, 1), span(IndexRange::between(-1, 1), IndexRange::between(0, 0)));
EXPECT_EQ(IndexRange::between(-1, 1), span(IndexRange::between(0, 0), IndexRange::between(-1, 1)));
EXPECT_EQ(IndexRange::between(-1, 1), span(IndexRange::between(-1, 1), IndexRange::between(1, 1)));
EXPECT_EQ(IndexRange::between(-1, 1), span(IndexRange::between(1, 1), IndexRange::between(-1, 1)));
EXPECT_EQ(IndexRange::between(-1, 1), span(IndexRange::between(-1, 1), IndexRange::between(-1, -1)));
EXPECT_EQ(IndexRange::between(-1, 1), span(IndexRange::between(-1, -1), IndexRange::between(-1, 1)));
EXPECT_EQ(IndexRange::between(3, -1), span(IndexRange::between(1, -1), IndexRange::between(3, 3)));
EXPECT_EQ(IndexRange::between(1, -3), span(IndexRange::between(-3, -3), IndexRange::between(1, -1)));
}
} // namespace mixxx