Moved tests + Added more tests + Added memory testing to actions

tests/ev_str/slice.c

@@ -0,0 +1,24 @@
+#define EV_STR_IMPLEMENTATION
+#include "ev_str.h"
+
+#include <assert.h>
+#include <string.h>
+
+int main(void)
+{
+  const evstring stack_str = evstr("Stack 'Hello, World!'");
+
+  evstring_view view = evstring_slice(stack_str, 0, -1);
+  assert(view.data == stack_str);
+  assert(view.offset == 0);
+  assert(view.len == evstring_getLength(stack_str));
+
+  evstring heap_str = evstring_new(view);
+  assert(heap_str != NULL);
+  assert(strcmp(heap_str, stack_str) == 0);
+  assert(evstring_getLength(heap_str) == evstring_getLength(stack_str));
+
+  evstring_free(heap_str);
+
+  return 0;
+}