Re: [Qemu-devel] [PATCH 2/2] acpi unit-test: hook to rebuild expected aml files

["Michael S. Tsirkin" <mst@redhat.com>]

On Thu, Dec 26, 2013 at 12:44:11PM +0200, Marcel Apfelbaum wrote:
> When running the test with ACPI_REBUILD_AML=y environment
> variable, the test will rebuild and validate the expected aml
> files.
> 
> Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
> ---
>  tests/acpi-test.c | 30 +++++++++++++++++++++++++-----
>  1 file changed, 25 insertions(+), 5 deletions(-)
> 
> diff --git a/tests/acpi-test.c b/tests/acpi-test.c
> index 954d9b9..2b8545d 100644
> --- a/tests/acpi-test.c
> +++ b/tests/acpi-test.c
> @@ -13,6 +13,7 @@
>  #include <string.h>
>  #include <stdio.h>
>  #include <glib.h>
> +#include <glib/gstdio.h>
>  #include "qemu-common.h"
>  #include "libqtest.h"
>  #include "qemu/compiler.h"
> @@ -21,6 +22,8 @@
>  #define MACHINE_PC "pc"
>  #define MACHINE_Q35 "q35"
>  
> +#define ACPI_REBUILD_EXPECTED_AML "ACPI_REBUILD_AML"
> +

Put TEST somewhere in the name please. Maybe as a prefix:
TEST_ACPI_REBUILD_AML

>  /* DSDT and SSDTs format */
>  typedef struct {
>      AcpiTableHeader header;
> @@ -363,10 +366,11 @@ static void test_acpi_ssdt_tables(test_data *data)
>      }
>  }
>  
> -static void dump_aml_files(test_data *data)
> +static void dump_aml_files(test_data *data, bool rebuild)
>  {
>      AcpiSdtTable *sdt;
>      GError *error = NULL;
> +    gchar *aml_file = NULL;
>      gint fd;
>      int i;
>  
> @@ -374,12 +378,24 @@ static void dump_aml_files(test_data *data)
>          sdt = &g_array_index(data->ssdt_tables, AcpiSdtTable, i);
>          g_assert(sdt->aml);
>  
> -        fd = g_file_open_tmp("aml-XXXXXX", &sdt->aml_file, &error);
> -        g_assert_no_error(error);
> +        if (rebuild) {
> +            aml_file = g_strdup_printf("%s/%s/%.4s", data_dir, data->machine,
> +                                       (gchar *)&sdt->header.signature);

Hmm will this work if there are many SSDTs?
They all have same signature,

> +            fd = g_open(aml_file, O_WRONLY|O_TRUNC|O_CREAT,
> +                        S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
> +        } else {
> +            fd = g_file_open_tmp("aml-XXXXXX", &sdt->aml_file, &error);
> +            g_assert_no_error(error);
> +        }
> +        g_assert(fd >= 0);
>  
>          write(fd, sdt, sizeof(AcpiTableHeader));
>          write(fd, sdt->aml, sdt->aml_len);
>          close(fd);
> +
> +        if (aml_file) {
> +            g_free(aml_file);
> +        }
>      }
>  }
>  
> @@ -487,7 +503,7 @@ static void test_acpi_asl(test_data *data)
>  
>      memset(&exp_data, 0, sizeof(exp_data));
>      exp_data.ssdt_tables = load_expected_aml(data);
> -    dump_aml_files(data);
> +    dump_aml_files(data, false);
>      for (i = 0; i < data->ssdt_tables->len; ++i) {
>          GString *asl, *exp_asl;
>  
> @@ -553,7 +569,11 @@ static void test_acpi_one(const char *params, test_data *data)
>      test_acpi_ssdt_tables(data);
>  
>      if (iasl) {
> -        test_acpi_asl(data);
> +        if (getenv(ACPI_REBUILD_EXPECTED_AML)) {
> +            dump_aml_files(data, true);
> +        } else {
> +            test_acpi_asl(data);
> +        }
>      }
>  
>      qtest_quit(global_qtest);
> -- 
> 1.8.3.1