imported from "final" folder

.pio/libdeps/esp01_1m/FastLED/tests/test_strstream.cpp

@@ -0,0 +1,66 @@
+
+// g++ --std=c++11 test.cpp
+
+#include "test.h"
+
+#include "test.h"
+#include "fl/str.h"
+#include "fl/strstream.h"
+#include "fl/vector.h"
+#include "crgb.h"
+#include <sstream>
+
+#include "fl/namespace.h"
+
+using namespace fl;
+
+TEST_CASE("StrStream basic operations") {
+    SUBCASE("Construction and assignment") {
+        StrStream s;
+        CHECK(s.str().size() == 0);
+        CHECK(s.str().c_str()[0] == '\0');
+
+        StrStream s2("hello");
+        CHECK(s2.str().size() == 5);
+        CHECK(strcmp(s2.str().c_str(), "hello") == 0);
+
+        StrStream s3 = s2;
+        CHECK(s3.str().size() == 5);
+        CHECK(strcmp(s3.str().c_str(), "hello") == 0);
+
+        s = "world";
+        CHECK(s.str().size() == 5);
+        CHECK(strcmp(s.str().c_str(), "world") == 0);
+    }
+
+    SUBCASE("Comparison operators") {
+        StrStream s1("hello");
+        StrStream s2("hello");
+        StrStream s3("world");
+
+        CHECK(s1.str() == s2.str());
+        CHECK(s1.str() != s3.str());
+    }
+
+    SUBCASE("Indexing") {
+        StrStream s("hello");
+        CHECK(s.str()[0] == 'h');
+        CHECK(s.str()[4] == 'o');
+        CHECK(s.str()[5] == '\0');  // Null terminator
+    }
+
+    SUBCASE("Append") {
+        StrStream s("hello");
+        s << " world";
+        CHECK(s.str().size() == 11);
+        CHECK(strcmp(s.str().c_str(), "hello world") == 0);
+    }
+
+    SUBCASE("CRGB to StrStream") {
+        CRGB c(255, 0, 0);
+        StrStream s;
+        s << c;
+        CHECK(s.str().size() == 13);  // "CRGB(255,0,0)" is 13 chars
+        CHECK(strcmp(s.str().c_str(), "CRGB(255,0,0)") == 0);
+    }
+}