test: redirect output of test to test.log (OpenAtomFoundation#126)

.gitignore

@@ -36,6 +36,7 @@ make_config.mk
 logs/
 lib/
 output/
+*.log
 
 # DB
 db/

tests/util/pikiwidb.go

@@ -145,8 +145,15 @@ func StartServer(config string, options map[string]string, delete bool) *Server
 	b := getBinPath()
 	c := exec.Command(b)
 
-	c.Stdout = os.Stdout
-	c.Stderr = os.Stderr
+	outfile, err := os.Create("test.log")
+	if err != nil {
+		panic(err)
+	}
+	defer outfile.Close()
+
+	c.Stdout = outfile
+	c.Stderr = outfile
+	log.SetOutput(outfile)
 
 	if len(config) != 0 {
 		t := time.Now().UnixMilli()
@@ -182,7 +189,7 @@ func StartServer(config string, options map[string]string, delete bool) *Server
 		p, _ = strconv.Atoi(options["port"])
 	}
 
-	err := c.Start()
+	err = c.Start()
 	if err != nil {
 		log.Println("pikiwidb startup failed.", err.Error())
 		return nil