Add missing file

1 files changed, 64 insertions, 0 deletions

diff --git a/test/test_utils.h b/test/test_utils.h
new file mode 100644
index 0000000..7081433
--- /dev/null
+++ b/test/test_utils.h
@@ -0,0 +1,64 @@
+/*
+  Copyright 2019-2021 David Robillard <d@drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include "lv2/urid/urid.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+/// Simple O(n) URI map
+typedef struct {
+  char**   uris;
+  uint32_t n_uris;
+} Uris;
+
+static char*
+copy_string(const char* str)
+{
+  const size_t len = strlen(str);
+  char*        dup = (char*)malloc(len + 1);
+  memcpy(dup, str, len + 1);
+  return dup;
+}
+
+static LV2_URID
+urid_map(LV2_URID_Map_Handle handle, const char* uri)
+{
+  Uris* const uris = (Uris*)handle;
+
+  for (uint32_t i = 0; i < uris->n_uris; ++i) {
+    if (!strcmp(uris->uris[i], uri)) {
+      return i + 1;
+    }
+  }
+
+  uris->uris = (char**)realloc(uris->uris, ++uris->n_uris * sizeof(char*));
+  uris->uris[uris->n_uris - 1] = copy_string(uri);
+  return uris->n_uris;
+}
+
+static const char*
+urid_unmap(LV2_URID_Unmap_Handle handle, LV2_URID urid)
+{
+  Uris* const uris = (Uris*)handle;
+
+  if (urid > 0 && urid <= uris->n_uris) {
+    return uris->uris[urid - 1];
+  }
+
+  return NULL;
+}