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Re: [Qemu-devel] [PATCH] qdev-monitor-test: simplify using g_assert_cmps
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH] qdev-monitor-test: simplify using g_assert_cmpstr() |
Date: |
Wed, 18 Dec 2013 18:11:57 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.2 (gnu/linux) |
Stefan Hajnoczi <address@hidden> writes:
> Use g_assert_cmpstr() instead of combining g_assert() and strcmp(3).
> This simplifies the code since we no longer have to play games to
> distinguish NULL from "" using "(null)".
>
> gcc extension haters will also be happy that ?: was dropped.
>
> Suggested-by: Markus Armbruster <address@hidden>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
> ---
> tests/qdev-monitor-test.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/tests/qdev-monitor-test.c b/tests/qdev-monitor-test.c
> index ba7f9cc..eefaab8 100644
> --- a/tests/qdev-monitor-test.c
> +++ b/tests/qdev-monitor-test.c
> @@ -32,8 +32,9 @@ static void test_device_add(void)
> "}}");
> g_assert(response);
> error = qdict_get_qdict(response, "error");
> - g_assert(!strcmp(qdict_get_try_str(error, "desc") ?: "",
> - "Device needs media, but drive is empty"));
> + g_assert_cmpstr(qdict_get_try_str(error, "desc"),
> + ==,
> + "Device needs media, but drive is empty");
> QDECREF(response);
>
> /* Delete the drive */
Outside this patch's scope, but here goes anyway: why do we test the
value of member desc? Isn't that awfully fragile?
It broke once already, in Andreas's commit 75884af "virtio-blk: Convert
to QOM realize". Andreas, do you remember why you tossed the class ==
GenericError check instead of the desc check?
> @@ -42,7 +43,7 @@ static void test_device_add(void)
> " \"command-line\": \"drive_del drive0\""
> "}}");
> g_assert(response);
> - g_assert(!strcmp(qdict_get_try_str(response, "return") ?: "(null)", ""));
> + g_assert_cmpstr(qdict_get_try_str(response, "return"), ==, "");
> QDECREF(response);
>
> /* Try to re-add the drive. This fails with duplicate IDs if a leaked
> @@ -53,8 +54,7 @@ static void test_device_add(void)
> " \"command-line\": \"drive_add pci-addr=auto
> if=none,id=drive0\""
> "}}");
> g_assert(response);
> - g_assert(!strcmp(qdict_get_try_str(response, "return") ?: "",
> - "OK\r\n"));
> + g_assert_cmpstr(qdict_get_try_str(response, "return"), ==, "OK\r\n");
> QDECREF(response);
>
> qtest_end();
Reviewed-by: Markus Armbruster <address@hidden>