src/test/regress/pg_regress_main.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * pg_regress_main --- regression test for the main backend
   4  *
   5  * This is a C implementation of the previous shell script for running
   6  * the regression tests, and should be mostly compatible with it.
   7  * Initial author of C translation: Magnus Hagander
   8  *
   9  * This code is released under the terms of the PostgreSQL License.
  10  *
  11  * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
  12  * Portions Copyright (c) 1994, Regents of the University of California
  13  *
  14  * src/test/regress/pg_regress_main.c
  15  *
  16  *-------------------------------------------------------------------------
  17  */
  18
  19 #include "postgres_fe.h"
  20
  21 #include "lib/stringinfo.h"
  22 #include "pg_regress.h"
  23
  24 /*
  25  * start a psql test process for specified file (including redirection),
  26  * and return process ID
  27  */
  28 static PID_TYPE
  29 psql_start_test(const char *testname,
  30                                 _stringlist **resultfiles,
  31                                 _stringlist **expectfiles,
  32                                 _stringlist **tags)
  33 {
  34         PID_TYPE        pid;
  35         char            infile[MAXPGPATH];
  36         char            outfile[MAXPGPATH];
  37         char            expectfile[MAXPGPATH];
  38         StringInfoData psql_cmd;
  39         char       *appnameenv;
  40
  41         /*
  42          * Look for files in the output dir first, consistent with a vpath search.
  43          * This is mainly to create more reasonable error messages if the file is
  44          * not found.  It also allows local test overrides when running pg_regress
  45          * outside of the source tree.
  46          */
  47         snprintf(infile, sizeof(infile), "%s/sql/%s.sql",
  48                          outputdir, testname);
  49         if (!file_exists(infile))
  50                 snprintf(infile, sizeof(infile), "%s/sql/%s.sql",
  51                                  inputdir, testname);
  52
  53         snprintf(outfile, sizeof(outfile), "%s/results/%s.out",
  54                          outputdir, testname);
  55
  56         snprintf(expectfile, sizeof(expectfile), "%s/expected/%s.out",
  57                          expecteddir, testname);
  58         if (!file_exists(expectfile))
  59                 snprintf(expectfile, sizeof(expectfile), "%s/expected/%s.out",
  60                                  inputdir, testname);
  61
  62         add_stringlist_item(resultfiles, outfile);
  63         add_stringlist_item(expectfiles, expectfile);
  64
  65         initStringInfo(&psql_cmd);
  66
  67         if (launcher)
  68                 appendStringInfo(&psql_cmd, "%s ", launcher);
  69
  70         /*
  71          * Use HIDE_TABLEAM to hide different AMs to allow to use regression tests
  72          * against different AMs without unnecessary differences.
  73          */
  74         appendStringInfo(&psql_cmd,
  75                                          "\"%s%spsql\" -X -a -q -d \"%s\" %s < \"%s\" > \"%s\" 2>&1",
  76                                          bindir ? bindir : "",
  77                                          bindir ? "/" : "",
  78                                          dblist->str,
  79                                          "-v HIDE_TABLEAM=on -v HIDE_TOAST_COMPRESSION=on",
  80                                          infile,
  81                                          outfile);
  82
  83         appnameenv = psprintf("pg_regress/%s", testname);
  84         setenv("PGAPPNAME", appnameenv, 1);
  85         free(appnameenv);
  86
  87         pid = spawn_process(psql_cmd.data);
  88
  89         if (pid == INVALID_PID)
  90         {
  91                 fprintf(stderr, _("could not start process for test %s\n"),
  92                                 testname);
  93                 exit(2);
  94         }
  95
  96         unsetenv("PGAPPNAME");
  97
  98         pfree(psql_cmd.data);
  99
 100         return pid;
 101 }
 102
 103 static void
 104 psql_init(int argc, char **argv)
 105 {
 106         /* set default regression database name */
 107         add_stringlist_item(&dblist, "regression");
 108 }
 109
 110 int
 111 main(int argc, char *argv[])
 112 {
 113         return regression_main(argc, argv,
 114                                                    psql_init,
 115                                                    psql_start_test,
 116                                                    NULL /* no postfunc needed */ );
 117 }