Addressed reviews on tests

api/rest/restapi_test.go

@@ -13,6 +13,7 @@ import (
 	"net/http"
 	"net/http/httputil"
 	"os"
+	"path/filepath"
 	"strings"
 	"testing"
 	"time"
@@ -1045,31 +1046,57 @@ func TestAPILogging(t *testing.T) {
 	cfg := &Config{}
 	cfg.Default()
 
-	cfg.HTTPLogFile = "/tmp/http.log"
+	baseDir, err := filepath.Abs("")
-
-	rest := testAPIwithConfig(t, cfg, "log_enabled")
-	defer rest.Shutdown(ctx)
-	defer os.Remove(cfg.HTTPLogFile)
-
-	data, err := ioutil.ReadFile(cfg.HTTPLogFile)
 	if err != nil {
 		t.Fatal(err)
 	}
+	cfg.BaseDir = baseDir
+	cfg.HTTPLogFile = "http.log"
 
-	if len(data) > 0 {
+	rest := testAPIwithConfig(t, cfg, "log_enabled")
-		t.Errorf("expected empty log file, %+v", data)
+	defer os.Remove(cfg.HTTPLogFile)
+
+	info, err := os.Stat(cfg.HTTPLogFile)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if info.Size() > 0 {
+		t.Errorf("expected empty log file")
 	}
 
 	id := api.ID{}
 	makeGet(t, rest, httpURL(rest)+"/id", &id)
 
-	data, err = ioutil.ReadFile(cfg.HTTPLogFile)
+	info, err = os.Stat(cfg.HTTPLogFile)
 	if err != nil {
 		t.Fatal(err)
 	}
-	if len(data) == 0 {
+	size1 := info.Size()
+	if size1 == 0 {
 		t.Error("did not expect an empty log file")
 	}
+
+	// Restart API and make sure that logs are being appended
+	rest.Shutdown(ctx)
+
+	rest = testAPIwithConfig(t, cfg, "log_enabled")
+	defer rest.Shutdown(ctx)
+
+	makeGet(t, rest, httpURL(rest)+"/id", &id)
+
+	info, err = os.Stat(cfg.HTTPLogFile)
+	if err != nil {
+		t.Fatal(err)
+	}
+	size2 := info.Size()
+	if size2 == 0 {
+		t.Error("did not expect an empty log file")
+	}
+
+	if !(size2 > size1) {
+		t.Error("logs were not appended")
+	}
+
 }
 
 func TestNotFoundHandler(t *testing.T) {