sTodo-m5paper-client/libraries/FastLED/tests/test_str.cpp
2025-06-30 20:47:33 +02:00

147 lines
3.9 KiB
C++

// g++ --std=c++11 test.cpp
#include "test.h"
#include "test.h"
#include "fl/str.h"
#include "fl/vector.h"
#include "crgb.h"
#include <sstream>
#include "fl/namespace.h"
using namespace fl;
TEST_CASE("Str basic operations") {
SUBCASE("Construction and assignment") {
Str s1;
CHECK(s1.size() == 0);
CHECK(s1.c_str()[0] == '\0');
Str s2("hello");
CHECK(s2.size() == 5);
CHECK(strcmp(s2.c_str(), "hello") == 0);
Str s3 = s2;
CHECK(s3.size() == 5);
CHECK(strcmp(s3.c_str(), "hello") == 0);
s1 = "world";
CHECK(s1.size() == 5);
CHECK(strcmp(s1.c_str(), "world") == 0);
}
SUBCASE("Comparison operators") {
Str s1("hello");
Str s2("hello");
Str s3("world");
CHECK(s1 == s2);
CHECK(s1 != s3);
}
SUBCASE("Indexing") {
Str s("hello");
CHECK(s[0] == 'h');
CHECK(s[4] == 'o');
CHECK(s[5] == '\0'); // Null terminator
}
SUBCASE("Append") {
Str s("hello");
s.append(" world");
CHECK(s.size() == 11);
CHECK(strcmp(s.c_str(), "hello world") == 0);
}
SUBCASE("CRGB to Str") {
CRGB c(255, 0, 0);
Str s = c.toString();
CHECK_EQ(s, "CRGB(255,0,0)");
}
SUBCASE("Copy-on-write behavior") {
Str s1("hello");
Str s2 = s1;
s2.append(" world");
CHECK(strcmp(s1.c_str(), "hello") == 0);
CHECK(strcmp(s2.c_str(), "hello world") == 0);
}
}
TEST_CASE("Str::reserve") {
Str s;
s.reserve(10);
CHECK(s.size() == 0);
CHECK(s.capacity() >= 10);
s.reserve(5);
CHECK(s.size() == 0);
CHECK(s.capacity() >= 10);
s.reserve(500);
CHECK(s.size() == 0);
CHECK(s.capacity() >= 500);
// s << "hello";
s.append("hello");
CHECK(s.size() == 5);
CHECK_EQ(s, "hello");
}
TEST_CASE("Str with fl::FixedVector") {
fl::FixedVector<Str, 10> vec;
vec.push_back(Str("hello"));
vec.push_back(Str("world"));
CHECK(vec.size() == 2);
CHECK(strcmp(vec[0].c_str(), "hello") == 0);
CHECK(strcmp(vec[1].c_str(), "world") == 0);
}
TEST_CASE("Str with long strings") {
const char* long_string = "This is a very long string that exceeds the inline buffer size and should be allocated on the heap";
Str s(long_string);
CHECK(s.size() == strlen(long_string));
CHECK(strcmp(s.c_str(), long_string) == 0);
Str s2 = s;
CHECK(s2.size() == strlen(long_string));
CHECK(strcmp(s2.c_str(), long_string) == 0);
s2.append(" with some additional text");
CHECK(strcmp(s.c_str(), long_string) == 0); // Original string should remain unchanged
}
TEST_CASE("Str overflowing inline data") {
SUBCASE("Construction with long string") {
std::string long_string(FASTLED_STR_INLINED_SIZE + 10, 'a'); // Create a string longer than the inline buffer
Str s(long_string.c_str());
CHECK(s.size() == long_string.length());
CHECK(strcmp(s.c_str(), long_string.c_str()) == 0);
}
SUBCASE("Appending to overflow") {
Str s("Short string");
std::string append_string(FASTLED_STR_INLINED_SIZE, 'b'); // String to append that will cause overflow
s.append(append_string.c_str());
CHECK(s.size() == strlen("Short string") + append_string.length());
CHECK(s[0] == 'S');
CHECK(s[s.size() - 1] == 'b');
}
SUBCASE("Copy on write with long string") {
std::string long_string(FASTLED_STR_INLINED_SIZE + 20, 'c');
Str s1(long_string.c_str());
Str s2 = s1;
CHECK(s1.size() == s2.size());
CHECK(strcmp(s1.c_str(), s2.c_str()) == 0);
s2.append("extra");
CHECK(s1.size() == long_string.length());
CHECK(s2.size() == long_string.length() + 5);
CHECK(strcmp(s1.c_str(), long_string.c_str()) == 0);
CHECK(s2[s2.size() - 1] == 'a');
}
}