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authorMichael Roth2013-05-11 00:46:07 +0200
committerLuiz Capitulino2013-05-23 15:44:21 +0200
commit089f26bb735fb414b79f5fa3753910d5339d2a1d (patch)
treee7ce56d929f7505be1dcb744a3c863be1943dd09 /tests
parentqapi: add QMP input test for large integers (diff)
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qapi: fix visitor serialization tests for numbers/doubles
We never actually stored the stringified double values into the strings before we did the comparisons. This left number/double values completely uncovered in test-visitor-serialization tests. Fixing this exposed a bug in our handling of large whole number values in QEMU's JSON parser which is now fixed. Simplify the code while we're at it by dropping the calc_float_string_storage() craziness in favor of GStrings. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Amos Kong <akong@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Diffstat (limited to 'tests')
-rw-r--r--tests/test-visitor-serialization.c25
1 files changed, 8 insertions, 17 deletions
diff --git a/tests/test-visitor-serialization.c b/tests/test-visitor-serialization.c
index 8c8adac6a9..fed6810df9 100644
--- a/tests/test-visitor-serialization.c
+++ b/tests/test-visitor-serialization.c
@@ -229,17 +229,6 @@ typedef struct TestArgs {
void *test_data;
} TestArgs;
-#define FLOAT_STRING_PRECISION 6 /* corresponding to n in %.nf formatting */
-static gsize calc_float_string_storage(double value)
-{
- int whole_value = value;
- gsize i = 0;
- do {
- i++;
- } while (whole_value /= 10);
- return i + 2 + FLOAT_STRING_PRECISION;
-}
-
static void test_primitives(gconstpointer opaque)
{
TestArgs *args = (TestArgs *) opaque;
@@ -248,7 +237,6 @@ static void test_primitives(gconstpointer opaque)
PrimitiveType *pt_copy = g_malloc0(sizeof(*pt_copy));
Error *err = NULL;
void *serialize_data;
- char *double1, *double2;
pt_copy->type = pt->type;
ops->serialize(pt, &serialize_data, visit_primitive_type, &err);
@@ -260,14 +248,17 @@ static void test_primitives(gconstpointer opaque)
g_assert_cmpstr(pt->value.string, ==, pt_copy->value.string);
g_free((char *)pt_copy->value.string);
} else if (pt->type == PTYPE_NUMBER) {
+ GString *double_expected = g_string_new("");
+ GString *double_actual = g_string_new("");
/* we serialize with %f for our reference visitors, so rather than fuzzy
* floating math to test "equality", just compare the formatted values
*/
- double1 = g_malloc0(calc_float_string_storage(pt->value.number));
- double2 = g_malloc0(calc_float_string_storage(pt_copy->value.number));
- g_assert_cmpstr(double1, ==, double2);
- g_free(double1);
- g_free(double2);
+ g_string_printf(double_expected, "%.6f", pt->value.number);
+ g_string_printf(double_actual, "%.6f", pt_copy->value.number);
+ g_assert_cmpstr(double_actual->str, ==, double_expected->str);
+
+ g_string_free(double_expected, true);
+ g_string_free(double_actual, true);
} else if (pt->type == PTYPE_BOOLEAN) {
g_assert_cmpint(!!pt->value.max, ==, !!pt->value.max);
} else {