Implement WL#2789 "Instance Manager: test using mysql-test-run testing framework"

mysql-test/Makefile.am:
  Make installation procedure aware of the Instance Manager tests.
mysql-test/lib/mtr_cases.pl:
  Make collect_one_test_case() aware of the Instance Manager tests.
mysql-test/lib/mtr_process.pl:
  Minor changes:
    - open log files for append, not for overwrite. Append mode is very
      useful for debugging of several tests;
    - extract the code for killing processes into a separate function:
      mtr_kill_processes(). The function is used to stop IM-related processes.
mysql-test/mysql-test-run.pl:
  Added support for the Instance Manager tests.

mysql-test/Makefile.am

@@ -50,6 +50,7 @@ dist-hook:
 		$(distdir)/std_data $(distdir)/lib
 	-$(INSTALL_DATA) $(srcdir)/t/*.def $(distdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.test $(distdir)/t
+	$(INSTALL_DATA) $(srcdir)/t/*.imtest $(distdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.sql $(distdir)/t
 	-$(INSTALL_DATA) $(srcdir)/t/*.disabled $(distdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.opt $(srcdir)/t/*.sh $(srcdir)/t/*.slave-mi $(distdir)/t
@@ -73,6 +74,7 @@ install-data-local:
 	$(INSTALL_DATA) $(srcdir)/README $(DESTDIR)$(testdir)
 	-$(INSTALL_DATA) $(srcdir)/t/*.def $(DESTDIR)$(testdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.test $(DESTDIR)$(testdir)/t
+	$(INSTALL_DATA) $(srcdir)/t/*.imtest $(DESTDIR)$(testdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.sql $(DESTDIR)$(testdir)/t
 	-$(INSTALL_DATA) $(srcdir)/t/*.disabled $(DESTDIR)$(testdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.opt $(DESTDIR)$(testdir)/t

mysql-test/lib/mtr_cases.pl

@@ -8,7 +8,7 @@ use File::Basename;
 use strict;
 
 sub collect_test_cases ($);
-sub collect_one_test_case ($$$$$$);
+sub collect_one_test_case ($$$$$$$);
 
 ##############################################################################
 #
@@ -40,13 +40,84 @@ sub collect_test_cases ($) {
   if ( @::opt_cases )
   {
     foreach my $tname ( @::opt_cases ) { # Run in specified order, no sort
-      $tname= basename($tname, ".test");
-      my $elem= "$tname.test";
-      if ( ! -f "$testdir/$elem")
+      my $elem= undef;
+      my $component_id= undef;
+      
+      # Get rid of directory part (path). Leave the extension since it is used
+      # to understand type of the test.
+
+      $tname = basename($tname);
+
+      # Check if the extenstion has been specified.
+
+      if ( mtr_match_extension($tname, "test") )
+      {
+        $elem= $tname;
+        $tname=~ s/\.test$//;
+        $component_id= 'mysqld';
+      }
+      elsif ( mtr_match_extension($tname, "imtest") )
+      {
+        $elem= $tname;
+        $tname =~ s/\.imtest$//;
+        $component_id= 'im';
+
+        if ( $::glob_use_embedded_server )
+        {
+          mtr_report(
+            "Instance Manager's tests are not available in embedded mode." .
+            "Test case '$tname' is skipped.");
+          next;
+        }
+
+        unless ( $::exe_im )
+        {
+          mtr_report(
+            "Instance Manager executable is unavailable. " .
+            "Test case '$tname' is skipped.");
+          next;
+        }
+      }
+
+      # If target component is known, check that the specified test case
+      # exists.
+      # 
+      # Otherwise, try to guess the target component.
+
+      if ( defined $component_id )
       {
-        mtr_error("Test case $tname ($testdir/$elem) is not found");
+        if ( ! -f "$testdir/$elem")
+        {
+          mtr_error("Test case $tname ($testdir/$elem) is not found");
+        }
       }
-      collect_one_test_case($testdir,$resdir,$tname,$elem,$cases,{});
+      else
+      {
+        my $mysqld_test_exists = -f "$testdir/$tname.test";
+        my $im_test_exists = -f "$testdir/$tname.imtest";
+
+        if ( $mysqld_test_exists && $im_test_exists )
+        {
+          mtr_error("Ambiguos test case name ($tname)");
+        }
+        elsif ( ! $mysqld_test_exists && !$im_test_exists )
+        {
+          mtr_error("Test case $tname is not found");
+        }
+        elsif ( $mysqld_test_exists )
+        {
+          $elem= "$tname.test";
+          $component_id= 'mysqld';
+        }
+        elsif ( $im_test_exists )
+        {
+          $elem= "$tname.imtest";
+          $component_id= 'im';
+        }
+      }
+      
+      collect_one_test_case($testdir,$resdir,$tname,$elem,$cases,{},
+        $component_id);
     }
     closedir TESTDIR;
   }
@@ -70,11 +141,26 @@ sub collect_test_cases ($) {
     }
 
     foreach my $elem ( sort readdir(TESTDIR) ) {
-      my $tname= mtr_match_extension($elem,"test");
-      next if ! defined $tname;
+      my $component_id= undef;
+      my $tname= undef;
+
+      if ($tname= mtr_match_extension($elem, 'test'))
+      {
+        $component_id = 'mysqld';
+      }
+      elsif ($tname= mtr_match_extension($elem, 'imtest'))
+      {
+        $component_id = 'im';
+      }
+      else
+      {
+        next;
+      }
+      
       next if $::opt_do_test and ! defined mtr_match_prefix($elem,$::opt_do_test);
 
-      collect_one_test_case($testdir,$resdir,$tname,$elem,$cases,\%disabled);
+      collect_one_test_case($testdir,$resdir,$tname,$elem,$cases,\%disabled,
+        $component_id);
     }
     closedir TESTDIR;
   }
@@ -112,13 +198,14 @@ sub collect_test_cases ($) {
 ##############################################################################
 
 
-sub collect_one_test_case($$$$$$) {
+sub collect_one_test_case($$$$$$$) {
   my $testdir= shift;
   my $resdir=  shift;
   my $tname=   shift;
   my $elem=    shift;
   my $cases=   shift;
   my $disabled=shift;
+  my $component_id= shift;
 
   my $path= "$testdir/$elem";
 
@@ -138,6 +225,7 @@ sub collect_one_test_case($$$$$$) {
   my $tinfo= {};
   $tinfo->{'name'}= $tname;
   $tinfo->{'result_file'}= "$resdir/$tname.result";
+  $tinfo->{'component_id'} = $component_id;
   push(@$cases, $tinfo);
 
   if ( $::opt_skip_test and defined mtr_match_prefix($tname,$::opt_skip_test) )
@@ -188,6 +276,7 @@ sub collect_one_test_case($$$$$$) {
   my $master_sh=       "$testdir/$tname-master.sh";
   my $slave_sh=        "$testdir/$tname-slave.sh";
   my $disabled_file=   "$testdir/$tname.disabled";
+  my $im_opt_file=     "$testdir/$tname-im.opt";
 
   $tinfo->{'master_opt'}= $::glob_win32 ? ["--default-time-zone=+3:00"] : [];
   $tinfo->{'slave_opt'}=  $::glob_win32 ? ["--default-time-zone=+3:00"] : [];
@@ -290,6 +379,15 @@ sub collect_one_test_case($$$$$$) {
     }
   }
 
+  if ( -f $im_opt_file )
+  {
+    $tinfo->{'im_opts'} = mtr_get_opts_from_file($im_opt_file);
+  }
+  else
+  {
+    $tinfo->{'im_opts'} = [];
+  }
+
   # FIXME why this late?
   if ( $disabled->{$tname} )
   {

mysql-test/lib/mtr_process.pl

@@ -12,16 +12,17 @@ use strict;
 #use POSIX ":sys_wait_h";
 use POSIX 'WNOHANG';
 
-sub mtr_run ($$$$$$);
-sub mtr_spawn ($$$$$$);
+sub mtr_run ($$$$$$;$);
+sub mtr_spawn ($$$$$$;$);
 sub mtr_stop_mysqld_servers ($);
 sub mtr_kill_leftovers ();
 sub mtr_record_dead_children ();
 sub mtr_exit ($);
 sub sleep_until_file_created ($$$);
+sub mtr_kill_processes ($);
 
 # static in C
-sub spawn_impl ($$$$$$$);
+sub spawn_impl ($$$$$$$$);
 
 ##############################################################################
 #
@@ -32,37 +33,43 @@ sub spawn_impl ($$$$$$$);
 # This function try to mimic the C version used in "netware/mysql_test_run.c"
 # FIXME learn it to handle append mode as well, a "new" flag or a "append"
 
-sub mtr_run ($$$$$$) {
+sub mtr_run ($$$$$$;$) {
   my $path=       shift;
   my $arg_list_t= shift;
   my $input=      shift;
   my $output=     shift;
   my $error=      shift;
   my $pid_file=   shift;
+  my $spawn_opts= shift;
 
-  return spawn_impl($path,$arg_list_t,'run',$input,$output,$error,$pid_file);
+  return spawn_impl($path,$arg_list_t,'run',$input,$output,$error,$pid_file,
+    $spawn_opts);
 }
 
-sub mtr_run_test ($$$$$$) {
+sub mtr_run_test ($$$$$$;$) {
   my $path=       shift;
   my $arg_list_t= shift;
   my $input=      shift;
   my $output=     shift;
   my $error=      shift;
   my $pid_file=   shift;
+  my $spawn_opts= shift;
 
-  return spawn_impl($path,$arg_list_t,'test',$input,$output,$error,$pid_file);
+  return spawn_impl($path,$arg_list_t,'test',$input,$output,$error,$pid_file,
+    $spawn_opts);
 }
 
-sub mtr_spawn ($$$$$$) {
+sub mtr_spawn ($$$$$$;$) {
   my $path=       shift;
   my $arg_list_t= shift;
   my $input=      shift;
   my $output=     shift;
   my $error=      shift;
   my $pid_file=   shift;
+  my $spawn_opts= shift;
 
-  return spawn_impl($path,$arg_list_t,'spawn',$input,$output,$error,$pid_file);
+  return spawn_impl($path,$arg_list_t,'spawn',$input,$output,$error,$pid_file,
+    $spawn_opts);
 }
 
 
@@ -72,7 +79,7 @@ sub mtr_spawn ($$$$$$) {
 #
 ##############################################################################
 
-sub spawn_impl ($$$$$$$) {
+sub spawn_impl ($$$$$$$$) {
   my $path=       shift;
   my $arg_list_t= shift;
   my $mode=       shift;
@@ -80,6 +87,7 @@ sub spawn_impl ($$$$$$$) {
   my $output=     shift;
   my $error=      shift;
   my $pid_file=   shift;                 # FIXME
+  my $spawn_opts= shift;
 
   if ( $::opt_script_debug )
   {
@@ -89,6 +97,18 @@ sub spawn_impl ($$$$$$$) {
     print STDERR "#### ", "STDOUT $output\n" if $output;
     print STDERR "#### ", "STDERR $error\n" if $error;
     print STDERR "#### ", "$mode : $path ", join(" ",@$arg_list_t), "\n";
+    print STDERR "#### ", "spawn options:\n";
+    if ($spawn_opts)
+    {
+      foreach my $key (sort keys %{$spawn_opts})
+      {
+        print STDERR "#### ", "  - $key: $spawn_opts->{$key}\n";
+      }
+    }
+    else
+    {
+      print STDERR "#### ", "  none\n";
+    }
     print STDERR "#### ", "-" x 78, "\n";
   }
 
@@ -135,9 +155,16 @@ sub spawn_impl ($$$$$$$) {
 #       $ENV{'COMSPEC'}= "$::glob_cygwin_shell -c";
       }
 
+      my $log_file_open_mode = '>';
+
+      if ($spawn_opts and $spawn_opts->{'append_log_file'})
+      {
+        $log_file_open_mode = '>>';
+      }
+
       if ( $output )
       {
-        if ( ! open(STDOUT,">",$output) )
+        if ( ! open(STDOUT,$log_file_open_mode,$output) )
         {
           mtr_error("can't redirect STDOUT to \"$output\": $!");
         }
@@ -154,7 +181,7 @@ sub spawn_impl ($$$$$$$) {
         }
         else
         {
-          if ( ! open(STDERR,">",$error) )
+          if ( ! open(STDERR,$log_file_open_mode,$error) )
           {
             mtr_error("can't redirect STDERR to \"$output\": $!");
           }
@@ -534,16 +561,7 @@ sub mtr_stop_mysqld_servers ($) {
   start_reap_all();                     # Avoid zombies
 
  SIGNAL:
-  foreach my $sig (15,9)
-  {
-    my $retries= 20;                    # FIXME 20 seconds, this is silly!
-    kill($sig, keys %mysqld_pids);
-    while ( $retries-- and  kill(0, keys %mysqld_pids) )
-    {
-      mtr_debug("Sleep 1 second waiting for processes to die");
-      sleep(1)                      # Wait one second
-    }
-  }
+  mtr_kill_processes(\keys (%mysqld_pids));
 
   stop_reap_all();                      # Get into control again
 
@@ -805,7 +823,7 @@ sub sleep_until_file_created ($$$) {
     }
 
     # Check if it died after the fork() was successful 
-    if ( waitpid($pid,&WNOHANG) == $pid )
+    if ( $pid > 0 && waitpid($pid,&WNOHANG) == $pid )
     {
       return 0;
     }
@@ -826,6 +844,21 @@ sub sleep_until_file_created ($$$) {
 }
 
 
+sub mtr_kill_processes ($) {
+  my $pids = shift;
+
+  foreach my $sig (15,9)
+  {
+    my $retries= 20;                    # FIXME 20 seconds, this is silly!
+    kill($sig, @{$pids});
+    while ( $retries-- and  kill(0, @{$pids}) )
+    {
+      mtr_debug("Sleep 1 second waiting for processes to die");
+      sleep(1)                      # Wait one second
+    }
+  }
+}
+
 ##############################################################################
 #
 #  When we exit, we kill off all children