1 files changed, 114 insertions, 0 deletions
diff --git a/test/test_cursor.c b/test/test_cursor.c
new file mode 100644
index 00000000..cade0621
--- /dev/null
+++ b/test/test_cursor.c
@@ -0,0 +1,114 @@
+/*
+  Copyright 2011-2021 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.
+*/
+
+#undef NDEBUG
+
+#include "serd/serd.h"
+
+#include <assert.h>
+#include <stddef.h>
+
+static void
+test_copy(void)
+{
+  assert(!serd_cursor_copy(NULL));
+
+  SerdWorld* const  world = serd_world_new();
+  SerdModel* const  model = serd_model_new(world, SERD_ORDER_SPO, 0u);
+  SerdCursor* const begin = serd_model_begin(model);
+  SerdCursor* const copy  = serd_cursor_copy(begin);
+
+  assert(serd_cursor_equals(copy, begin));
+
+  serd_cursor_free(copy);
+  serd_cursor_free(begin);
+  serd_model_free(model);
+  serd_world_free(world);
+}
+
+static void
+test_comparison(void)
+{
+  SerdWorld* const world = serd_world_new();
+  SerdNodes* const nodes = serd_world_nodes(world);
+  SerdModel* const model = serd_model_new(world, SERD_ORDER_SPO, 0u);
+
+  serd_model_add_index(model, SERD_ORDER_OPS);
+
+  const SerdNode* const a =
+    serd_nodes_uri(nodes, SERD_STRING("http://example.org/a"));
+  const SerdNode* const b =
+    serd_nodes_uri(nodes, SERD_STRING("http://example.org/b"));
+  const SerdNode* const c =
+    serd_nodes_uri(nodes, SERD_STRING("http://example.org/c"));
+
+  // Add a single statement
+  assert(!serd_model_add(model, a, b, c, NULL));
+
+  // Make cursors that point to the statement but via different patterns
+  SerdCursor* const c1 = serd_model_find(model, a, NULL, NULL, NULL);
+  SerdCursor* const c2 = serd_model_find(model, a, b, NULL, NULL);
+  SerdCursor* const c3 = serd_model_find(model, NULL, b, c, NULL);
+
+  // Ensure that they refer to the same statement but are not equal
+  assert(serd_cursor_get(c1) == serd_cursor_get(c2));
+  assert(serd_cursor_get(c2) == serd_cursor_get(c3));
+  assert(!serd_cursor_equals(c1, c2));
+  assert(!serd_cursor_equals(c2, c3));
+  assert(!serd_cursor_equals(c1, c3));
+
+  // Check that none are equal to begin (which has a different mode) or end
+  SerdCursor* const begin = serd_model_begin(model);
+  assert(!serd_cursor_equals(c1, begin));
+  assert(!serd_cursor_equals(c2, begin));
+  assert(!serd_cursor_equals(c3, begin));
+  assert(!serd_cursor_equals(c1, serd_model_end(model)));
+  assert(!serd_cursor_equals(c2, serd_model_end(model)));
+  assert(!serd_cursor_equals(c3, serd_model_end(model)));
+  serd_cursor_free(begin);
+
+  // Check that a cursor that points to it via the same pattern is equal
+  SerdCursor* const c4 = serd_model_find(model, a, b, NULL, NULL);
+  assert(serd_cursor_get(c4) == serd_cursor_get(c1));
+  assert(serd_cursor_equals(c4, c2));
+  assert(!serd_cursor_equals(c4, c3));
+  serd_cursor_free(c4);
+
+  // Advance everything to the end
+  assert(serd_cursor_advance(c1) == SERD_FAILURE);
+  assert(serd_cursor_advance(c2) == SERD_FAILURE);
+  assert(serd_cursor_advance(c3) == SERD_FAILURE);
+
+  // Check that they are now equal, and equal to the model's end
+  assert(serd_cursor_equals(c1, c2));
+  assert(serd_cursor_equals(c1, serd_model_end(model)));
+  assert(serd_cursor_equals(c2, serd_model_end(model)));
+
+  serd_cursor_free(c3);
+  serd_cursor_free(c2);
+  serd_cursor_free(c1);
+  serd_model_free(model);
+  serd_world_free(world);
+}
+
+int
+main(void)
+{
+  test_copy();
+  test_comparison();
+
+  return 0;
+}