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From f57ff93bf55cfdf09995c441cbbf8ad886f1afcb Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Sat, 11 Jan 2014 18:00:05 +0100
Subject: [PATCH 15/22] i440fx-test: give each GTest case its own qtest

RH-Author: Laszlo Ersek <lersek@redhat.com>
Message-id: <1389463208-6278-16-git-send-email-lersek@redhat.com>
Patchwork-id: 56628
O-Subject: [RHEL-7.0 qemu-kvm PATCH 15/18] i440fx-test: give each GTest case its own qtest
Bugzilla: 1032346
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Amos Kong <akong@redhat.com>
RH-Acked-by: Andrew Jones <drjones@redhat.com>

The current two GTest cases, /i440fx/defaults and /i440fx/pam can share a
qemu process, but the next two cases will need dedicated instances. It is
messy (and order-dependent) to dynamically configure GTest cases one by
one to start, stop, or keep the current qtest (*); let's just have each
GTest work with its own qtest. The performance difference should be
negligible.

(*) As g_test_run() can be invoked at most once per process startup, and
it runs GTest cases in sequence, we'd need clumsy data structures to
control each GTest case to start/stop/keep the qemu instance. Or, we'd
have to code the same information into the test methods themselves, which
would make them even more order-dependent.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit c37805b6724e5d4c3ad41653630b72b43619474e)
---
 tests/i440fx-test.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 tests/i440fx-test.c |   32 +++++++++++++++++++-------------
 1 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/tests/i440fx-test.c b/tests/i440fx-test.c
index 6ac46bf..3962bca 100644
--- a/tests/i440fx-test.c
+++ b/tests/i440fx-test.c
@@ -28,16 +28,27 @@
 typedef struct TestData
 {
     int num_cpus;
-    QPCIBus *bus;
 } TestData;
 
+static QPCIBus *test_start_get_bus(const TestData *s)
+{
+    char *cmdline;
+
+    cmdline = g_strdup_printf("-smp %d", s->num_cpus);
+    qtest_start(cmdline);
+    g_free(cmdline);
+    return qpci_init_pc();
+}
+
 static void test_i440fx_defaults(gconstpointer opaque)
 {
     const TestData *s = opaque;
+    QPCIBus *bus;
     QPCIDevice *dev;
     uint32_t value;
 
-    dev = qpci_device_find(s->bus, QPCI_DEVFN(0, 0));
+    bus = test_start_get_bus(s);
+    dev = qpci_device_find(bus, QPCI_DEVFN(0, 0));
     g_assert(dev != NULL);
 
     /* 3.2.2 */
@@ -121,6 +132,8 @@ static void test_i440fx_defaults(gconstpointer opaque)
     g_assert_cmpint(qpci_config_readb(dev, 0x91), ==, 0x00); /* ERRSTS */
     /* 3.2.26 */
     g_assert_cmpint(qpci_config_readb(dev, 0x93), ==, 0x00); /* TRC */
+
+    qtest_end();
 }
 
 #define PAM_RE 1
@@ -179,6 +192,7 @@ static void write_area(uint32_t start, uint32_t end, uint8_t value)
 static void test_i440fx_pam(gconstpointer opaque)
 {
     const TestData *s = opaque;
+    QPCIBus *bus;
     QPCIDevice *dev;
     int i;
     static struct {
@@ -201,7 +215,8 @@ static void test_i440fx_pam(gconstpointer opaque)
         { 0xEC000, 0xEFFFF }, /* BIOS Extension */
     };
 
-    dev = qpci_device_find(s->bus, QPCI_DEVFN(0, 0));
+    bus = test_start_get_bus(s);
+    dev = qpci_device_find(bus, QPCI_DEVFN(0, 0));
     g_assert(dev != NULL);
 
     for (i = 0; i < ARRAY_SIZE(pam_area); i++) {
@@ -254,30 +269,21 @@ static void test_i440fx_pam(gconstpointer opaque)
         /* Verify the area is not our new mask */
         g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x82));
     }
+    qtest_end();
 }
 
 int main(int argc, char **argv)
 {
     TestData data;
-    char *cmdline;
     int ret;
 
     g_test_init(&argc, &argv, NULL);
 
     data.num_cpus = 1;
 
-    cmdline = g_strdup_printf("-smp %d", data.num_cpus);
-    qtest_start(cmdline);
-    g_free(cmdline);
-
-    data.bus = qpci_init_pc();
-
     g_test_add_data_func("/i440fx/defaults", &data, test_i440fx_defaults);
     g_test_add_data_func("/i440fx/pam", &data, test_i440fx_pam);
 
     ret = g_test_run();
-
-    qtest_end();
-
     return ret;
 }
-- 
1.7.1