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#include "catch.hpp"
#include <osmium/io/detail/string_table.hpp>
#include <osmium/util/misc.hpp>
#include <iterator>
#include <string>
TEST_CASE("Empty StringStore") {
const osmium::io::detail::StringStore ss{100};
REQUIRE(ss.begin() == ss.end());
REQUIRE(ss.get_chunk_size() == 100);
REQUIRE(ss.get_chunk_count() == 1);
}
TEST_CASE("Add zero-length string to StringStore") {
osmium::io::detail::StringStore ss{100};
const char* s1 = ss.add("");
REQUIRE(std::string{s1}.empty());
auto it = ss.begin();
REQUIRE(s1 == *it);
REQUIRE(std::string{*it}.empty());
REQUIRE(++it == ss.end());
REQUIRE(ss.get_chunk_count() == 1);
}
TEST_CASE("Add strings to StringStore") {
osmium::io::detail::StringStore ss{100};
const char* s1 = ss.add("foo");
const char* s2 = ss.add("bar");
REQUIRE(s1 != s2);
REQUIRE(std::string{s1} == "foo");
REQUIRE(std::string{s2} == "bar");
auto it = ss.begin();
REQUIRE(s1 == *it++);
REQUIRE(s2 == *it++);
REQUIRE(it == ss.end());
}
TEST_CASE("Add zero-length string and longer strings to StringStore") {
osmium::io::detail::StringStore ss{100};
ss.add("");
ss.add("xxx");
ss.add("yyyyy");
auto it = ss.begin();
REQUIRE(std::string{*it++}.empty());
REQUIRE(std::string{*it++} == "xxx");
REQUIRE(std::string{*it++} == "yyyyy");
REQUIRE(it == ss.end());
}
TEST_CASE("Add many strings to StringStore") {
for (const char* teststring : {"", "a", "abc", "abcd", "abcde"}) {
osmium::io::detail::StringStore ss{100};
int i = 0;
for (; i < 200; ++i) {
ss.add(teststring);
}
for (const char* s : ss) {
REQUIRE(std::string{s} == teststring);
--i;
}
REQUIRE(i == 0);
REQUIRE(ss.get_chunk_count() > 1);
}
}
TEST_CASE("Empty StringTable") {
const osmium::io::detail::StringTable st;
REQUIRE(st.size() == 1);
REQUIRE(std::next(st.begin()) == st.end());
}
TEST_CASE("Add strings to StringTable") {
osmium::io::detail::StringTable st;
REQUIRE(st.add("foo") == 1);
REQUIRE(st.add("bar") == 2);
REQUIRE(st.add("bar") == 2);
REQUIRE(st.add("baz") == 3);
REQUIRE(st.add("foo") == 1);
REQUIRE(st.size() == 4);
auto it = st.begin();
REQUIRE(std::string{} == *it++);
REQUIRE(std::string{"foo"} == *it++);
REQUIRE(std::string{"bar"} == *it++);
REQUIRE(std::string{"baz"} == *it++);
REQUIRE(it == st.end());
}
TEST_CASE("Add empty string to StringTable") {
osmium::io::detail::StringTable st;
REQUIRE(st.add("") == 1);
REQUIRE(st.size() == 2);
REQUIRE(st.add("") == 1);
REQUIRE(st.size() == 2);
}
TEST_CASE("Lots of strings in string table so chunk overflows") {
osmium::io::detail::StringTable st{100};
REQUIRE(st.size() == 1);
const int n = 1000;
for (int i = 0; i < n; ++i) {
const auto s = std::to_string(i);
st.add(s.c_str());
}
REQUIRE(st.size() == n + 1);
auto it = st.begin();
REQUIRE(std::string{} == *it++);
for (int i = 0; i < n; ++i) {
REQUIRE(osmium::detail::str_to_int<int>(*it++) == i);
}
REQUIRE(it == st.end());
}
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