fix(string_view): cleanup memmcpy line artifacts

CMakeLists.txt

@@ -19,7 +19,8 @@ if(BUILD_TESTING)
   find_package(PkgConfig REQUIRED)
   pkg_check_modules(CRITERION REQUIRED IMPORTED_TARGET GLOBAL criterion)
 
-  add_executable(tests ${CMAKE_CURRENT_SOURCE_DIR}/test/darr.c)
+  add_executable(tests ${CMAKE_CURRENT_SOURCE_DIR}/test/darr.c
+                       ${CMAKE_CURRENT_SOURCE_DIR}/test/string-view.c)
   target_link_libraries(tests c-libs PkgConfig::CRITERION)
 
   add_test(NAME all_tests COMMAND tests)

include/c-libs/string-view.h

@@ -340,7 +340,7 @@ char *sv_concat_with_sep(const StringView *svs, size_t n, StringView sep) {
     }
 
     size_t l = sv_len(svs[i]);
-    memcpy(wri
+    memcpy(write_head, svs[i].data, l);
     write_head += l;
   }
 

test/string-view.c

@@ -0,0 +1,30 @@
+#include "c-libs/string-view.h"
+#include <criterion/criterion.h>
+
+Test(sv, construction) {
+  const char *data = "abcdefg";
+  size_t len = strlen(data);
+
+  StringView sv1 = sv_new(data);
+  StringView sv2 = sv_new_sized(data, 2);
+
+  cr_assert(sv1.data == data);
+  cr_assert(sv1.end == data + len);
+  cr_assert(sv2.data == data);
+  cr_assert(sv2.end == data + 2);
+}
+
+Test(sv, inspection) {
+  const char *data = "abcdefg";
+  size_t len = strlen(data);
+
+  StringView sv1 = sv_new(data);
+  char *clone = sv_clone(sv1);
+
+  cr_assert(sv_len(sv1) == len);
+  cr_assert_str_eq(data, clone);
+  cr_assert(sv_eq(sv1, sv1));
+  cr_assert_not(sv_eq(sv1, sv_drop(sv1, 1)));
+
+  free(clone);
+}