hive: Add --sim.exactmatch flag.

Author: spencer-tb

hive.go

@@ -26,6 +26,7 @@ func main() {
 		dockerOutput          = flag.Bool("docker.output", false, "Relay all docker output to stderr.")
 		simPattern            = flag.String("sim", "", "Regular `expression` selecting the simulators to run.")
 		simTestPattern        = flag.String("sim.limit", "", "Regular `expression` selecting tests/suites (interpreted by simulators).")
+		simTestExact          = flag.Bool("sim.exactmatch", true, "Exact `expression` match for tests/suites (interpreted by simulators).")
 		simParallelism        = flag.Int("sim.parallelism", 1, "Max `number` of parallel clients/containers (interpreted by simulators).")
 		simRandomSeed         = flag.Int("sim.randomseed", 0, "Randomness seed number (interpreted by simulators).")
 		simTestLimit          = flag.Int("sim.testlimit", 0, "[DEPRECATED] Max `number` of tests to execute per client (interpreted by simulators).")
@@ -73,6 +74,10 @@ func main() {
 		log15.Warn("--sim is ignored when using --dev mode")
 		simList = nil
 	}
+	if *simTestExact && *simTestPattern != "" {
+		pattern := regexp.QuoteMeta(*simTestPattern) + "$"
+		simTestPattern = &pattern
+	}
 
 	// Create the docker backends.
 	dockerConfig := &libdocker.Config{