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#include "range_walker.h"
#include <library/cpp/testing/unittest/registar.h>
using namespace NYql;
Y_UNIT_TEST_SUITE(TRangeWalkerTests) {
Y_UNIT_TEST(InvalidRange) {
UNIT_ASSERT_EXCEPTION_CONTAINS(TRangeWalker<int>(2, 1), yexception, "Invalid range for walker");
}
Y_UNIT_TEST(SingleValueRange) {
TRangeWalker<int> w(5, 5);
UNIT_ASSERT_EQUAL(5, w.GetStart());
UNIT_ASSERT_EQUAL(5, w.GetFinish());
UNIT_ASSERT_EQUAL(1, w.GetRangeSize());
for (int i = 0; i < 10; ++i) {
UNIT_ASSERT_EQUAL(5, w.MoveToNext());
}
}
Y_UNIT_TEST(ManyValuesRange) {
TRangeWalker<int> w(5, 7);
UNIT_ASSERT_EQUAL(5, w.GetStart());
UNIT_ASSERT_EQUAL(7, w.GetFinish());
UNIT_ASSERT_EQUAL(3, w.GetRangeSize());
for (int i = 0; i < 10; ++i) {
UNIT_ASSERT_EQUAL(5, w.MoveToNext());
UNIT_ASSERT_EQUAL(6, w.MoveToNext());
UNIT_ASSERT_EQUAL(7, w.MoveToNext());
}
}
}
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