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Added string deduplication (closes #1303)

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This commit is contained in:
Benoit Blanchon
2020-07-21 20:15:31 +02:00
parent 8ef226bcb8
commit 764ff2cd53
31 changed files with 574 additions and 156 deletions
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41
extras/tests/MemoryPool/StringCopier.cpp
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@ -38,8 +38,47 @@ TEST_CASE("StringCopier") {
str.startString(&pool);
str.append('h');
str.commit(&pool);
str.save(&pool);
REQUIRE(1 == pool.size());
}
}
static const char* addStringToPool(MemoryPool* pool, const char* s) {
StringCopier str;
str.startString(pool);
str.append(s);
str.append('\0');
return str.save(pool);
}
TEST_CASE("StringCopier::save() deduplicates strings") {
char buffer[4096];
MemoryPool pool(buffer, 4096);
SECTION("Basic") {
const char* s1 = addStringToPool(&pool, "hello");
const char* s2 = addStringToPool(&pool, "world");
const char* s3 = addStringToPool(&pool, "hello");
REQUIRE(s1 == s3);
REQUIRE(s2 != s3);
REQUIRE(pool.size() == 12);
}
SECTION("Requires terminator") {
const char* s1 = addStringToPool(&pool, "hello world");
const char* s2 = addStringToPool(&pool, "hello");
REQUIRE(s2 != s1);
REQUIRE(pool.size() == 12 + 6);
}
SECTION("Don't overrun") {
const char* s1 = addStringToPool(&pool, "hello world");
const char* s2 = addStringToPool(&pool, "wor");
REQUIRE(s2 != s1);
REQUIRE(pool.size() == 12 + 4);
}
}