Rename spec -> test

'Test' is a lot more straightforward of a name.

test/compiler/rules/repeat_test.cc

@@ -0,0 +1,22 @@
+#include "test_helper.h"
+#include "compiler/rules/repeat.h"
+#include "compiler/rules/symbol.h"
+
+using namespace rules;
+
+START_TEST
+
+describe("Repeat", []() {
+  describe("constructing repeats", [&]() {
+    it("doesn't create redundant repeats", [&]() {
+      auto sym = make_shared<Symbol>(1, Symbol::NonTerminal);
+      auto repeat = Repeat::build(sym);
+      auto outer_repeat = Repeat::build(repeat);
+
+      AssertThat(repeat, !Equals(sym));
+      AssertThat(outer_repeat, Equals(repeat));
+    });
+  });
+});
+
+END_TEST