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#include "tensorflow/core/lib/gtl/iterator_range.h"
#include <vector>
#include "tensorflow/core/platform/port.h"
#include <gtest/gtest.h>
namespace tensorflow {
namespace gtl {
namespace {
TEST(IteratorRange, WholeVector) {
std::vector<int> v = {2, 3, 5, 7, 11, 13};
iterator_range<std::vector<int>::iterator> range(v.begin(), v.end());
int index = 0;
for (int prime : range) {
ASSERT_LT(index, v.size());
EXPECT_EQ(v[index], prime);
++index;
}
EXPECT_EQ(v.size(), index);
}
TEST(IteratorRange, VectorMakeRange) {
std::vector<int> v = {2, 3, 5, 7, 11, 13};
auto range = make_range(v.begin(), v.end());
int index = 0;
for (int prime : range) {
ASSERT_LT(index, v.size());
EXPECT_EQ(v[index], prime);
++index;
}
EXPECT_EQ(v.size(), index);
}
TEST(IteratorRange, PartArray) {
int v[] = {2, 3, 5, 7, 11, 13};
iterator_range<int*> range(&v[1], &v[4]); // 3, 5, 7
int index = 1;
for (int prime : range) {
ASSERT_LT(index, TF_ARRAYSIZE(v));
EXPECT_EQ(v[index], prime);
++index;
}
EXPECT_EQ(4, index);
}
TEST(IteratorRange, ArrayMakeRange) {
int v[] = {2, 3, 5, 7, 11, 13};
auto range = make_range(&v[1], &v[4]); // 3, 5, 7
int index = 1;
for (int prime : range) {
ASSERT_LT(index, TF_ARRAYSIZE(v));
EXPECT_EQ(v[index], prime);
++index;
}
EXPECT_EQ(4, index);
}
} // namespace
} // namespace gtl
} // namespace tensorflow
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