Turn on UseCorrectAssertInTests bug pattern and fix problem

Details: https://errorprone.info/bugpattern/UseCorrectAssertInTests
Change-Id: Ic36f6cdcc509cb00a2a64f78672107dace4b92fe

tools/BUILD

diff --git a/tools/BUILD b/tools/BUILD
index df5a729..6cc108b 100644
--- a/tools/BUILD
+++ b/tools/BUILD
@@ -450,7 +450,7 @@
         "-Xep:UnusedNestedClass:ERROR",
         # "-Xep:UnusedVariable:WARN",
         "-Xep:UseBinds:ERROR",
-        # "-Xep:UseCorrectAssertInTests:WARN",
+        "-Xep:UseCorrectAssertInTests:ERROR",
         "-Xep:VarTypeName:ERROR",
         "-Xep:VariableNameSameAsType:ERROR",
         "-Xep:WaitNotInLoop:ERROR",