[gtk/matthiasc/expression] Add some more tests

[Matthias Clasen <matthiasc src gnome org>]

commit 54ef0eb422fe28b65c4efbabfc5627dfeaaf9ad7
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Nov 28 13:31:10 2019 -0500

    Add some more tests
    
    The nested one fails now.

 testsuite/gtk/expression.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)
---
diff --git a/testsuite/gtk/expression.c b/testsuite/gtk/expression.c
index b86f848760..da452f1afd 100644
--- a/testsuite/gtk/expression.c
+++ b/testsuite/gtk/expression.c
@@ -206,13 +206,25 @@ test_nested (void)
   g_assert_cmpstr (g_value_get_string (&value), ==, "salad");
   g_value_unset (&value);
 
+  gtk_filter_list_model_set_filter (filtered, filter);
+  g_assert_cmpint (counter, ==, 0);
+
   g_clear_object (&filter);
   filter = gtk_string_filter_new ();
-  gtk_string_filter_set_search (GTK_STRING_FILTER (filter), "bar");
+  gtk_string_filter_set_search (GTK_STRING_FILTER (filter), "salad");
   gtk_filter_list_model_set_filter (filtered, filter);
   g_assert_cmpint (counter, >, 0);
   counter = 0;
 
+  res = gtk_expression_evaluate (expr, NULL, &value);
+  g_assert_true (res);
+  g_assert_cmpstr (g_value_get_string (&value), ==, "salad");
+  g_value_unset (&value);
+
+  gtk_string_filter_set_search (GTK_STRING_FILTER (filter), "bar");
+  g_assert_cmpint (counter, >, 0);
+  counter = 0;
+
   res = gtk_expression_evaluate (expr, NULL, &value);
   g_assert_true (res);
   g_assert_cmpstr (g_value_get_string (&value), ==, "bar");