tests: Clean up test-string-output-visitor

Use &error_abort and error_free_or_abort() in more places, use
the generated qapi_free_intList() instead of open-coding it,
reduce the scope of some variables, avoid code duplication
during test setup with visitor_output_setup_internal(), and
copy the visitor_reset() concept from the qmp-output test to
the string-output test.
Signed-off-by: NEric Blake <eblake@redhat.com>
Message-Id: <1465490926-28625-11-git-send-email-eblake@redhat.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>

tests/test-string-output-visitor.c

@@ -25,26 +25,26 @@ typedef struct TestOutputVisitorData {
     bool human;
 } TestOutputVisitorData;
 
+static void visitor_output_setup_internal(TestOutputVisitorData *data,
+                                          bool human)
+{
+    data->human = human;
+    data->sov = string_output_visitor_new(human);
+    g_assert(data->sov);
+    data->ov = string_output_get_visitor(data->sov);
+    g_assert(data->ov);
+}
+
 static void visitor_output_setup(TestOutputVisitorData *data,
                                  const void *unused)
 {
-    data->human = false;
-    data->sov = string_output_visitor_new(data->human);
-    g_assert(data->sov != NULL);
-
-    data->ov = string_output_get_visitor(data->sov);
-    g_assert(data->ov != NULL);
+    return visitor_output_setup_internal(data, false);
 }
 
 static void visitor_output_setup_human(TestOutputVisitorData *data,
                                        const void *unused)
 {
-    data->human = true;
-    data->sov = string_output_visitor_new(data->human);
-    g_assert(data->sov != NULL);
-
-    data->ov = string_output_get_visitor(data->sov);
-    g_assert(data->ov != NULL);
+    return visitor_output_setup_internal(data, true);
 }
 
 static void visitor_output_teardown(TestOutputVisitorData *data,
@@ -55,6 +55,14 @@ static void visitor_output_teardown(TestOutputVisitorData *data,
     data->ov = NULL;
 }
 
+static void visitor_reset(TestOutputVisitorData *data)
+{
+    bool human = data->human;
+
+    visitor_output_teardown(data, NULL);
+    visitor_output_setup_internal(data, human);
+}
+
 static void test_visitor_out_int(TestOutputVisitorData *data,
                                  const void *unused)
 {
@@ -106,12 +114,7 @@ static void test_visitor_out_intList(TestOutputVisitorData *data,
             "0-1,3-6,9-16,21-22,9223372036854775806-9223372036854775807");
     }
     g_free(str);
-    while (list) {
-        intList *tmp2;
-        tmp2 = list->next;
-        g_free(list);
-        list = tmp2;
-    }
+    qapi_free_intList(list);
 }
 
 static void test_visitor_out_bool(TestOutputVisitorData *data,
@@ -171,12 +174,10 @@ static void test_visitor_out_no_string(TestOutputVisitorData *data,
                                        const void *unused)
 {
     char *string = NULL;
-    Error *err = NULL;
     char *str;
 
     /* A null string should return "" */
-    visit_type_str(data->ov, NULL, &string, &err);
-    g_assert(!err);
+    visit_type_str(data->ov, NULL, &string, &error_abort);
 
     str = string_output_get_string(data->sov);
     g_assert(str != NULL);
@@ -191,27 +192,24 @@ static void test_visitor_out_no_string(TestOutputVisitorData *data,
 static void test_visitor_out_enum(TestOutputVisitorData *data,
                                   const void *unused)
 {
-    Error *err = NULL;
     char *str;
     EnumOne i;
 
     for (i = 0; i < ENUM_ONE__MAX; i++) {
-        char *str_human;
-
-        visit_type_EnumOne(data->ov, "unused", &i, &err);
-        g_assert(!err);
-
-        str_human = g_strdup_printf("\"%s\"", EnumOne_lookup[i]);
+        visit_type_EnumOne(data->ov, "unused", &i, &error_abort);
 
         str = string_output_get_string(data->sov);
         g_assert(str != NULL);
         if (data->human) {
+            char *str_human = g_strdup_printf("\"%s\"", EnumOne_lookup[i]);
+
             g_assert_cmpstr(str, ==, str_human);
+            g_free(str_human);
         } else {
             g_assert_cmpstr(str, ==, EnumOne_lookup[i]);
         }
-        g_free(str_human);
-	g_free(str);
+        g_free(str);
+        visitor_reset(data);
     }
 }
 
@@ -224,8 +222,7 @@ static void test_visitor_out_enum_errors(TestOutputVisitorData *data,
     for (i = 0; i < ARRAY_SIZE(bad_values) ; i++) {
         err = NULL;
         visit_type_EnumOne(data->ov, "unused", &bad_values[i], &err);
-        g_assert(err);
-        error_free(err);
+        error_free_or_abort(&err);
     }
 }