add log and update it's location

Signed-off-by: rafaelcosc <rpd17@inf.ufpr.br>

src/core/log.spec.ts → src/util/log.spec.ts

@@ -19,7 +19,7 @@
  */
 
 import { expect } from "chai";
-import { Log } from "../util/log";
+import { Log } from "./log";
 
 describe("log class", () => {
 
@@ -35,10 +35,16 @@ describe("log class", () => {
         expect(logLevelEmpty.getLogLevel()).to.be.equals("error");
     });
 
-    it("should modifiy logFile to ./blendb.log if empty file", () => {
+    it("should modifiy logFile to stderr if empty file", () => {
         process.env.BLENDB_LOG_FILE = "";
         const LogFileEmpty = new Log();
         expect(LogFileEmpty.getLogFile()).to.be.equals("stderr");
     });
 
+    it("should modifiy logFile to stderr if file does not exist", () => {
+        process.env.BLENDB_LOG_FILE = "norepo/test/shalnotexist";
+        const LogFileEmpty = new Log();
+        expect(LogFileEmpty.getLogFile()).to.be.equals("stderr");
+    });
+
 });