diff --git a/src/tests/kits/app/broster/BRosterCases b/src/tests/kits/app/broster/BRosterCases
index 2608298046..b978a79ef3 100644
--- a/src/tests/kits/app/broster/BRosterCases
+++ b/src/tests/kits/app/broster/BRosterCases
@@ -26,7 +26,7 @@ case 2:	signature is not NULL, but no app with this signature is running =>
 		Should return B_ERROR.
 case 3:	signature is not NULL and an (two) app(s) with this signature is (are)
 		running; quit one; quit the second one =>
-		Should return the ID of one of the teams; the ID of the second teams;
+		Should return the ID of one of the teams; the ID of the second team;
 		B_ERROR.
 
 team_id TeamFor(entry_ref *ref) const
@@ -36,7 +36,7 @@ case 2:	ref is not NULL, but no app with this ref is running =>
 		Should return B_ERROR.
 case 3:	ref is not NULL and an (two) app(s) with this ref is (are)
 		running; quit one; quit the second one =>
-		Should return the ID of one of the teams; the ID of the second teams;
+		Should return the ID of one of the teams; the ID of the second team;
 		B_ERROR.
 
 status_t GetAppInfo(const char *signature, app_info *info) const
@@ -68,23 +68,23 @@ status_t GetRunningAppInfo(team_id team, app_info *info) const
 case 1:	info is NULL =>
 		Should return B_BAD_VALUE.
 case 2:	info is not NULL, but no app with the team ID is running =>
-		Should return B_BAD_TEAM_ID.
+		Should return B_BAD_TEAM_ID, if team >= 0, B_ERROR otherwise.
 case 3:	info is not NULL, and an app with the team ID is running =>
 		Should fill the app info and return B_OK.
 
 void GetAppList(BList *teamIDList) const
 case 1:	teamIDList is NULL =>
-		Should return B_BAD_VALUE.
+		Should do nothing.
 case 2:	teamIDList is not NULL and not empty =>
 		Should append the team IDs of all running apps to teamIDList.
 
 void GetAppList(const char *signature, BList *teamIDList) const
 case 1:	signature or teamIDList are NULL =>
-		Should return B_BAD_VALUE.
+		Should do nothing/should not modify teamIDList.
 case 2:	teamIDList is not NULL and not empty, signature is not NULL, but no
 		app with this signature is running =>
 		Should not modify teamIDList.
-case 3:	teamIDList is not NULL and not empty, signature is not NULL, but no
-		app with this signature is running =>
+case 3:	teamIDList is not NULL and not empty, signature is not NULL and
+		app(s) with this signature is (are) running =>
 		Should append the team IDs of all running apps with the supplied
 		signature to teamIDList.