69 lines
1.3 KiB
C++
69 lines
1.3 KiB
C++
#include "catch.hpp"
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#include <vector>
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#include <osmium/util/delta.hpp>
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TEST_CASE("delta encode") {
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osmium::util::DeltaEncode<int> x;
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SECTION("int") {
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.update(10) == -7);
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}
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}
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TEST_CASE("delta decode") {
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osmium::util::DeltaDecode<int> x;
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SECTION("int") {
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REQUIRE(x.update(17) == 17);
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REQUIRE(x.update(10) == 27);
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}
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}
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TEST_CASE("delta encode and decode") {
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std::vector<int> a = { 5, -9, 22, 13, 0, 23 };
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osmium::util::DeltaEncode<int> de;
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std::vector<int> b;
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for (int x : a) {
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b.push_back(de.update(x));
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}
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osmium::util::DeltaDecode<int> dd;
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std::vector<int> c;
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for (int x : b) {
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c.push_back(dd.update(x));
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}
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}
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TEST_CASE("delta encode iterator") {
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std::vector<int> data = { 4, 5, 13, 22, 12 };
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auto l = [](std::vector<int>::const_iterator it) -> int {
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return *it;
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};
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typedef osmium::util::DeltaEncodeIterator<std::vector<int>::const_iterator, decltype(l), int> it_type;
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it_type it(data.begin(), data.end(), l);
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it_type end(data.end(), data.end(), l);
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REQUIRE(*it == 4);
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++it;
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REQUIRE(*it++ == 1);
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REQUIRE(*it == 8);
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++it;
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REQUIRE(*it++ == 9);
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REQUIRE(*it == -10);
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++it;
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REQUIRE(it == end);
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}
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