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#include "Test.h"
#include "pymol/zstring_view.h"
#include <map>
#include <set>
#include <sstream>
#include <unordered_map>
#include <unordered_set>
using namespace pymol::test;
TEST_CASE("special member functions", "[zstring_view]")
{
std::string s1 = "foobar";
std::string s2 = s1; // same value, different data() pointer
std::string s3 = "other value";
// view from std::string
pymol::zstring_view v1(s1);
REQUIRE(v1 == s1);
REQUIRE(s1 == v1); // swap lhs rhs
REQUIRE(v1 == s2);
REQUIRE(v1 != s3);
REQUIRE(v1 == "foobar");
REQUIRE(v1 != "abc");
// view from view
pymol::zstring_view v2(v1);
REQUIRE(v2 == v1);
REQUIRE(v2 == s1);
REQUIRE(v2 == s2);
REQUIRE(v2 != s3);
// view assigment
v1 = v2;
REQUIRE(v1 == v2);
REQUIRE(v1 == "foobar");
// string assignment
v1 = s3;
REQUIRE(v1 != v2);
REQUIRE(v1 != s1);
REQUIRE(v1 != s2);
REQUIRE(v1 == s3);
// static string constant assingment
v1 = "constant";
REQUIRE(v1 == "constant");
REQUIRE(v1 == std::string("constant"));
// swap
std::swap(v1, v2);
REQUIRE(v1 == "foobar");
REQUIRE(v2 == "constant");
// view to string
auto s4 = std::string(v1.c_str());
REQUIRE(s4 == "foobar");
}
TEST_CASE("nullsafe", "[zstring_view]")
{
std::string s3 = "other value";
const char* c1 = nullptr;
auto nullsafe1 = pymol::null_safe_zstring_view(c1);
auto nullsafe2 = pymol::null_safe_zstring_view(nullsafe1);
auto nullsafe3 = pymol::null_safe_zstring_view(s3);
REQUIRE(nullsafe1.c_str() != nullptr);
REQUIRE(nullsafe1.c_str() == std::string(""));
REQUIRE(nullsafe1 == "");
REQUIRE("" == nullsafe1); // swap lhs rhs
REQUIRE(nullsafe1 == std::string(""));
REQUIRE(nullsafe1 == nullsafe2);
REQUIRE(nullsafe3 == s3);
REQUIRE(nullsafe3 == std::string(s3).c_str());
REQUIRE(nullsafe3 != nullsafe1);
// assign view from null-safe
pymol::zstring_view v1 = nullsafe1;
v1 = nullsafe1;
// construct view from null-safe
auto v4 = pymol::zstring_view(nullsafe3);
REQUIRE(v4 == s3);
}
TEST_CASE("substr", "[zstring_view]")
{
pymol::zstring_view v1 = "foobar";
pymol::zstring_view v2 = v1;
v1.remove_prefix(3);
REQUIRE(v1 == "bar");
REQUIRE(v2.substr(3) == "bar");
REQUIRE(v2 == "foobar");
}
TEST_CASE("size", "[zstring_view]")
{
auto v1 = pymol::zstring_view("foo");
REQUIRE(v1.size() == 3);
REQUIRE(!v1.empty());
v1 = "";
REQUIRE(v1.size() == 0);
REQUIRE(v1.empty());
}
TEST_CASE("sets", "[zstring_view]")
{
std::set<pymol::zstring_view> set1;
std::unordered_set<pymol::zstring_view> set2;
pymol::zstring_view v1 =
"some very long string which can't be small string optimized";
std::string s1 = v1.c_str(); // copy
pymol::null_safe_zstring_view nullsafe1 = s1;
REQUIRE(v1 == s1);
REQUIRE(v1 == nullsafe1);
REQUIRE(s1 == nullsafe1);
set1.insert(v1);
set1.insert(s1);
set1.insert(nullsafe1);
set2.insert(v1);
set2.insert(s1);
set2.insert(nullsafe1);
set1.insert("foo");
set2.insert("foo");
std::string s2("foo");
set1.insert(s2);
set2.insert(s2);
REQUIRE(set1.size() == 2);
REQUIRE(set2.size() == 2);
REQUIRE(set1.count("foo") == 1);
REQUIRE(set2.count("foo") == 1);
REQUIRE(set1.count("bar") == 0);
REQUIRE(set2.count("bar") == 0);
REQUIRE(set1.count(s1) == 1);
REQUIRE(set2.count(s1) == 1);
}
TEST_CASE("maps", "[zstring_view]")
{
std::map<pymol::zstring_view, int> map1;
std::unordered_map<pymol::zstring_view, int> map2;
map1["foo"] = 12;
map2["foo"] = 12;
REQUIRE(map1["foo"] == 12);
REQUIRE(map2["foo"] == 12);
REQUIRE(map1.size() == 1);
REQUIRE(map2.size() == 1);
auto s1 = std::string("foo");
REQUIRE(map1[s1] == 12);
REQUIRE(map2[s1] == 12);
map1[s1] = 34;
map2[s1] = 34;
REQUIRE(map1.size() == 1);
REQUIRE(map2.size() == 1);
REQUIRE(map1["foo"] == 34);
REQUIRE(map2["foo"] == 34);
auto s2 = std::string("bar");
REQUIRE(map1[s2] == 0);
REQUIRE(map2[s2] == 0);
map1[s2] = 56;
map2[s2] = 56;
REQUIRE(map1.size() == 2);
REQUIRE(map2.size() == 2);
REQUIRE(map1[s2] == 56);
REQUIRE(map2[s2] == 56);
}
TEST_CASE("ostream", "[zstring_view]")
{
pymol::zstring_view v1("foobar");
std::ostringstream out;
out << v1;
REQUIRE(out.str() == "foobar");
}
TEST_CASE("copy", "[zstring_view]")
{
pymol::zstring_view v1 = "foobar";
char buffer[16];
buffer[v1.copy(buffer, sizeof(buffer) - 1)] = 0;
REQUIRE(v1 == buffer);
buffer[v1.copy(buffer, 3)] = 0;
REQUIRE(std::string(v1.c_str(), 3) == buffer);
buffer[v1.copy(buffer, sizeof(buffer) - 1, 3)] = 0;
REQUIRE(std::string(v1.c_str() + 3) == buffer);
}
TEST_CASE("starts or ends with", "[zstring_view]")
{
pymol::zstring_view v1 = "foobar";
REQUIRE(v1.starts_with("foo"));
REQUIRE(!v1.starts_with("bar"));
REQUIRE(!v1.ends_with("foo"));
REQUIRE(v1.ends_with("bar"));
}
TEST_CASE("find", "[zstring_view]")
{
pymol::zstring_view v1 = "foobar";
REQUIRE(v1.find('a') == 4);
REQUIRE(v1.find("ob") == 2);
REQUIRE(v1.find("obo") == pymol::zstring_view::npos);
REQUIRE(v1.find_first_of('b') == 3);
REQUIRE(v1.find_first_of("abc") == 3);
REQUIRE(v1.find_first_not_of("abc") == 0);
REQUIRE(v1.find_first_not_of("abfor") == pymol::zstring_view::npos);
}
TEST_CASE("explicit bool cast", "[zstring_view]")
{
// default constructed is false
pymol::zstring_view v1;
REQUIRE(!v1);
// nullsafe always true
pymol::null_safe_zstring_view v2;
REQUIRE(v2);
// empty string is true
v1 = "";
REQUIRE(v1);
v2 = "";
REQUIRE(v2);
// null assignment is legal
v1 = nullptr;
REQUIRE(!v1);
v2 = nullptr;
REQUIRE(v2);
v1 = "foo";
REQUIRE(v1);
v2 = "foo";
REQUIRE(v2);
}
TEST_CASE("implicit cast", "[zstring_view]")
{
static_assert(std::is_convertible<const char*, pymol::zstring_view>::value,
"from const char*");
static_assert(!std::is_convertible<pymol::zstring_view, const char*>::value,
"to const char*");
static_assert(std::is_convertible<pymol::null_safe_zstring_view,
pymol::zstring_view>::value,
"from null_safe_zstring_view");
static_assert(std::is_convertible<pymol::zstring_view,
pymol::null_safe_zstring_view>::value,
"to null_safe_zstring_view");
static_assert(std::is_convertible<std::string, pymol::zstring_view>::value,
"from std::string");
static_assert(!std::is_convertible<pymol::zstring_view, std::string>::value,
"to std::string");
static_assert(
!std::is_convertible<bool, pymol::zstring_view>::value, "from bool");
static_assert(
!std::is_convertible<pymol::zstring_view, bool>::value, "to bool");
}
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