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xo-object2: + DString utests

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This commit is contained in:
Roland Conybeare 2026-01-13 17:42:50 -05:00
commit f620fc3965
1 changed files with 98 additions and 0 deletions
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98
utest/DString.test.cpp
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@ -79,6 +79,104 @@ namespace xo {
REQUIRE(dst->size() == 5);
REQUIRE(std::strcmp(dst->chars(), "hello") == 0);
}
TEST_CASE("DString-data", "[object2][DString]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4*1024 };
DArena arena = DArena::map(cfg);
auto alloc = with_facet<AAllocator>::mkobj(&arena);
DString * s = DString::empty(alloc, 16);
char * p = s->data();
std::strcpy(p, "test");
s->fixup_size();
REQUIRE(s->size() == 4);
REQUIRE(std::strcmp(s->chars(), "test") == 0);
}
TEST_CASE("DString-operator-bracket", "[object2][DString]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4*1024 };
DArena arena = DArena::map(cfg);
auto alloc = with_facet<AAllocator>::mkobj(&arena);
DString * s = DString::from_cstr(alloc, "hello");
REQUIRE((*s)[0] == 'h');
REQUIRE((*s)[4] == 'o');
(*s)[0] = 'H';
REQUIRE(std::strcmp(s->chars(), "Hello") == 0);
}
TEST_CASE("DString-clear", "[object2][DString]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4*1024 };
DArena arena = DArena::map(cfg);
auto alloc = with_facet<AAllocator>::mkobj(&arena);
DString * s = DString::from_cstr(alloc, "hello");
REQUIRE(s->size() == 5);
s->clear();
REQUIRE(s->size() == 0);
REQUIRE(s->chars()[0] == '\0');
REQUIRE(s->capacity() == 6);
}
TEST_CASE("DString-fixup_size", "[object2][DString]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4*1024 };
DArena arena = DArena::map(cfg);
auto alloc = with_facet<AAllocator>::mkobj(&arena);
DString * s = DString::empty(alloc, 16);
char * p = s->data();
p[0] = 'a';
p[1] = 'b';
p[2] = 'c';
p[3] = '\0';
REQUIRE(s->size() == 0);
auto new_size = s->fixup_size();
REQUIRE(new_size == 3);
REQUIRE(s->size() == 3);
}
TEST_CASE("DString-string_view", "[object2][DString]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4*1024 };
DArena arena = DArena::map(cfg);
auto alloc = with_facet<AAllocator>::mkobj(&arena);
DString * s = DString::from_cstr(alloc, "hello");
std::string_view sv = *s;
REQUIRE(sv == "hello");
REQUIRE(sv.size() == 5);
}
TEST_CASE("DString-cstr-conversion", "[object2][DString]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4*1024 };
DArena arena = DArena::map(cfg);
auto alloc = with_facet<AAllocator>::mkobj(&arena);
DString * s = DString::from_cstr(alloc, "hello");
const char * cstr = *s;
REQUIRE(std::strcmp(cstr, "hello") == 0);
}
} /*namespace ut*/
} /*namespace xo*/