diff --git a/test/errors.h b/test/errors.h
deleted file mode 100644
index f098720f..00000000
--- a/test/errors.h
+++ /dev/null
@@ -1,66 +0,0 @@
-// 12 june 2019
-#include "test.h"
-
-// Usage:
-// struct checkErrorParams {
-// 	// ...
-// };
-// #define checkErrorHeader "header.h"
-// #include "errors.h"
-// testingTest(TestName)
-// {
-// 	struct checkErrorParams p = ...;
-// 	checkErrors(t, checkErrorCases, &p);
-// }
-// Feel free to redefine checkErrorParams and checkErrorCases as necessary.
-
-#define checkErrorCat(a, b) a ## b
-#define checkErrorCase(call, msgWant) checkErrorCaseFull(__LINE__, #call, call, msgWant)
-
-#define checkErrorCaseFull(line, name, call, msgWant) \
-	static void checkErrorCat(doCheck, line)(void *data) \
-	{ \
-		struct checkErrorParams *p = (struct checkErrorParams *) data; \
-		(void) p; /* in the event call does not use this */ \
-		call; \
-	}
-#include checkErrorHeader
-#undef checkErrorCaseFull
-
-static const struct checkErrorCase checkErrorCases[] = {
-#define checkErrorCaseFull(line, name, call, msgWant) { name, checkErrorCat(doCheck, line), msgWant },
-#include checkErrorHeader
-#undef checkErrorCaseFull
-	{ NULL, NULL, NULL, },
-};
-
-testingTest(EventErrors)
-{
-	struct checkErrorParams p;
-	uiEventOptions opts;
-	size_t i;
-
-	memset(&p, 0, sizeof (struct checkErrorParams));
-	p.eventOptionsBadSize.Size = 1;
-	memset(&opts, 0, sizeof (uiEventOptions));
-	opts.Size = sizeof (uiEventOptions);
-	opts.Global = true;
-	p.globalEvent = uiNewEvent(&opts);
-	testingTDefer(t, deferEventFree, p.globalEvent);
-	opts.Global = false;
-	p.nonglobalEvent = uiNewEvent(&opts);
-	testingTDefer(t, deferEventFree, p.nonglobalEvent);
-	p.eventPlaceholder = p.globalEvent;
-	p.handlerPlaceholder = dummyHandler;
-	p.nonNullSender = &p;
-	p.firingEvent = p.globalEvent;
-	p.eventWithHandlers = uiNewEvent(&opts);
-	// TODO properly free this
-	uiEventAddHandler(p.eventWithHandlers, dummyHandler, &p, &p);
-
-	for (i = 0; checkErrorCases[i].name != NULL; i++)
-		checkProgrammerError(t, checkErrorCases[i].name, checkErrorCases[i].f, &p, checkErrorCases[i].msgWant);
-}
-
-#undef checkErrorCase
-#undef checkErrorCat