X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/d84f776e873ea93f22dc230e2b10ee70a8a6cd2e..27737964c40716d61321cb0101d5ddb641298fff:/tests/test_helper.tcl

diff --git a/tests/test_helper.tcl b/tests/test_helper.tcl
index 34d96606..7874256d 100644
--- a/tests/test_helper.tcl
+++ b/tests/test_helper.tcl
@@ -38,6 +38,7 @@ set ::all_tests {
     unit/scripting
     unit/maxmemory
     unit/introspection
+    unit/limits
     unit/obuf-limits
     unit/dump
 }
@@ -345,6 +346,7 @@ proc print_help_screen {} {
         "--quiet            Don't show individual tests."
         "--single <unit>    Just execute the specified unit (see next option)."
         "--list-tests       List all the available test units."
+        "--clients <num>    Number of test clients (16)."
         "--force-failure    Force the execution of a test that always fails."
         "--help             Print this help screen."
     } "\n"]
@@ -390,6 +392,9 @@ for {set j 0} {$j < [llength $argv]} {incr j} {
         set ::client 1
         set ::test_server_port $arg
         incr j
+    } elseif {$opt eq {--clients}} {
+        set ::numclients $arg
+        incr j
     } elseif {$opt eq {--help}} {
         print_help_screen
         exit 0
@@ -399,6 +404,18 @@ for {set j 0} {$j < [llength $argv]} {incr j} {
     }
 }
 
+# With the parallel test running multiple Redis instances at the same time
+# we need a fast enough computer, otherwise a lot of tests may generate
+# false positives.
+# If the computer is too slow we revert the sequetial test without any
+# parallelism, that is, clients == 1.
+proc is_a_slow_computer {} {
+    set start [clock milliseconds]
+    for {set j 0} {$j < 1000000} {incr j} {}
+    set elapsed [expr [clock milliseconds]-$start]
+    expr {$elapsed > 200}
+}
+
 if {$::client} {
     if {[catch { test_client_main $::test_server_port } err]} {
         set estr "Executing test client: $err.\n$::errorInfo"
@@ -408,6 +425,11 @@ if {$::client} {
         exit 1
     }
 } else {
+    if {[is_a_slow_computer]} {
+        puts "** SLOW COMPUTER ** Using a single client to avoid false positives."
+        set ::numclients 1
+    }
+
     if {[catch { test_server_main } err]} {
         if {[string length $err] > 0} {
             # only display error when not generated by the test suite