Piotr Caban : msi: Improve feature action value evaluation in conditions.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b141a145c49f1ad6cb6eef1781e08e8aaaa393ab
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=b141a145c49f1ad6cb6eef1781e08e8aaaa393ab

Author: Piotr Caban <piotr at codeweavers.com>
Date:   Fri Oct 20 22:18:25 2017 +0200

msi: Improve feature action value evaluation in conditions.

Signed-off-by: Piotr Caban <piotr at codeweavers.com>
Signed-off-by: Hans Leidekker <hans at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/msi/cond.y          | 9 ++++++---
 dlls/msi/tests/package.c | 2 ++
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/dlls/msi/cond.y b/dlls/msi/cond.y
index fa55825..079bbd9 100644
--- a/dlls/msi/cond.y
+++ b/dlls/msi/cond.y
@@ -318,11 +318,14 @@ value_i:
   | COND_AMPER identifier
         {
             COND_input* cond = (COND_input*) info;
-            INSTALLSTATE install = INSTALLSTATE_UNKNOWN, action = INSTALLSTATE_UNKNOWN;
+            INSTALLSTATE install, action;
       
-            MSI_GetFeatureStateW(cond->package, $2, &install, &action );
-            if (action == INSTALLSTATE_UNKNOWN)
+            if (MSI_GetFeatureStateW(cond->package, $2, &install, &action ) != ERROR_SUCCESS)
+            {
+                FIXME("condition may be evaluated incorrectly\n");
+                /* we should return empty string in this case */
                 $$ = MSICONDITION_FALSE;
+            }
             else
                 $$ = action;
 
diff --git a/dlls/msi/tests/package.c b/dlls/msi/tests/package.c
index 1f04cef..0dafd7c 100644
--- a/dlls/msi/tests/package.c
+++ b/dlls/msi/tests/package.c
@@ -2069,6 +2069,8 @@ static void test_condition(void)
     /* feature doesn't exist */
     r = MsiEvaluateConditionA(hpkg, "&nofeature");
     ok( r == MSICONDITION_FALSE, "wrong return val (%d)\n", r);
+    r = MsiEvaluateConditionA(hpkg, "&nofeature=\"\"");
+    todo_wine ok( r == MSICONDITION_TRUE, "wrong return val (%d)\n", r);
 
     MsiSetPropertyA(hpkg, "A", "2");
     MsiSetPropertyA(hpkg, "X", "50");