More tests and documentation

Also improve find file and switch buffer a bit.

Implement word backward/forward.

1 files changed, 31 insertions, 0 deletions

diff --git a/test/allocator.c b/test/allocator.c
new file mode 100644
index 0000000..ca1a7a0
--- /dev/null
+++ b/test/allocator.c
@@ -0,0 +1,31 @@
+#include "assert.h"
+#include "test.h"
+
+#include "allocator.h"
+
+void test_frame_allocator() {
+  struct frame_allocator fa = frame_allocator_create(128);
+
+  ASSERT(fa.capacity == 128,
+         "Expected frame allocator to be created with specified capacity");
+
+  void *bytes = frame_allocator_alloc(&fa, 128);
+  ASSERT(
+      bytes != NULL,
+      "Expected to be able to allocate <capacity> bytes from frame allocator");
+
+  void *bytes_again = frame_allocator_alloc(&fa, 128);
+  ASSERT(bytes_again == NULL,
+         "Expected to not be able to allocate <capacity> bytes "
+         "from frame allocator a second time");
+
+  frame_allocator_clear(&fa);
+  void *bytes_after_clear = frame_allocator_alloc(&fa, 128);
+  ASSERT(bytes_after_clear != NULL,
+         "Expected to be able to allocate <capacity> bytes from frame "
+         "allocator again after clearing it");
+
+  frame_allocator_destroy(&fa);
+}
+
+void run_allocator_tests() { run_test(test_frame_allocator); }