Ankit Meel
d23a5b1d88
Motivated by `std::string_view` being usable in const (compile-time) context. One functional change was needed for StringRef: `std::char_traits<char>::length(str)` instead of `strlen`. Reviewed By: JacquesLucke, LazyDodo Differential Revision: https://developer.blender.org/D9788
151 lines
3.0 KiB
C++
151 lines
3.0 KiB
C++
/* Apache License, Version 2.0 */
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#include "BLI_index_range.hh"
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#include "BLI_strict_flags.h"
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#include "BLI_vector.hh"
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#include "testing/testing.h"
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namespace blender::tests {
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TEST(index_range, DefaultConstructor)
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{
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IndexRange range;
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EXPECT_EQ(range.size(), 0);
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Vector<int64_t> vector;
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for (int64_t value : range) {
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vector.append(value);
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}
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EXPECT_EQ(vector.size(), 0);
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}
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TEST(index_range, SingleElementRange)
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{
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IndexRange range(4, 1);
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EXPECT_EQ(range.size(), 1);
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EXPECT_EQ(*range.begin(), 4);
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Vector<int64_t> vector;
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for (int64_t value : range) {
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vector.append(value);
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}
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EXPECT_EQ(vector.size(), 1);
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EXPECT_EQ(vector[0], 4);
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}
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TEST(index_range, MultipleElementRange)
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{
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IndexRange range(6, 4);
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EXPECT_EQ(range.size(), 4);
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Vector<int64_t> vector;
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for (int64_t value : range) {
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vector.append(value);
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}
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EXPECT_EQ(vector.size(), 4);
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for (int i = 0; i < 4; i++) {
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EXPECT_EQ(vector[i], i + 6);
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}
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}
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TEST(index_range, SubscriptOperator)
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{
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IndexRange range(5, 5);
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EXPECT_EQ(range[0], 5);
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EXPECT_EQ(range[1], 6);
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EXPECT_EQ(range[2], 7);
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}
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TEST(index_range, Before)
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{
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IndexRange range = IndexRange(5, 5).before(3);
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EXPECT_EQ(range[0], 2);
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EXPECT_EQ(range[1], 3);
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EXPECT_EQ(range[2], 4);
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EXPECT_EQ(range.size(), 3);
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}
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TEST(index_range, After)
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{
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IndexRange range = IndexRange(5, 5).after(4);
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EXPECT_EQ(range[0], 10);
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EXPECT_EQ(range[1], 11);
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EXPECT_EQ(range[2], 12);
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EXPECT_EQ(range[3], 13);
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EXPECT_EQ(range.size(), 4);
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}
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TEST(index_range, Contains)
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{
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IndexRange range = IndexRange(5, 3);
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EXPECT_TRUE(range.contains(5));
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EXPECT_TRUE(range.contains(6));
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EXPECT_TRUE(range.contains(7));
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EXPECT_FALSE(range.contains(4));
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EXPECT_FALSE(range.contains(8));
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}
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TEST(index_range, First)
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{
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IndexRange range = IndexRange(5, 3);
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EXPECT_EQ(range.first(), 5);
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}
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TEST(index_range, Last)
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{
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IndexRange range = IndexRange(5, 3);
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EXPECT_EQ(range.last(), 7);
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}
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TEST(index_range, OneAfterEnd)
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{
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IndexRange range = IndexRange(5, 3);
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EXPECT_EQ(range.one_after_last(), 8);
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}
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TEST(index_range, Start)
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{
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IndexRange range = IndexRange(6, 2);
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EXPECT_EQ(range.start(), 6);
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}
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TEST(index_range, Slice)
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{
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IndexRange range = IndexRange(5, 15);
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IndexRange slice = range.slice(2, 6);
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EXPECT_EQ(slice.size(), 6);
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EXPECT_EQ(slice.first(), 7);
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EXPECT_EQ(slice.last(), 12);
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}
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TEST(index_range, SliceRange)
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{
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IndexRange range = IndexRange(5, 15);
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IndexRange slice = range.slice(IndexRange(3, 5));
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EXPECT_EQ(slice.size(), 5);
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EXPECT_EQ(slice.first(), 8);
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EXPECT_EQ(slice.last(), 12);
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}
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TEST(index_range, AsSpan)
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{
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IndexRange range = IndexRange(4, 6);
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Span<int64_t> span = range.as_span();
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EXPECT_EQ(span.size(), 6);
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EXPECT_EQ(span[0], 4);
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EXPECT_EQ(span[1], 5);
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EXPECT_EQ(span[2], 6);
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EXPECT_EQ(span[3], 7);
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}
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TEST(index_range, constexpr_)
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{
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constexpr IndexRange range = IndexRange(1, 1);
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std::array<int, range[0]> compiles = {1};
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BLI_STATIC_ASSERT(range.size() == 1, "");
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EXPECT_EQ(compiles[0], 1);
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}
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} // namespace blender::tests
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