Adding tests for put bucket errors, fixed mismatching error

pkg/api/api_bucket_handlers.go

@@ -141,16 +141,11 @@ func (server *minioAPI) putBucketHandler(w http.ResponseWriter, req *http.Reques
 		}
 	case drivers.BucketExists:
 		{
-			writeErrorResponse(w, req, InvalidBucketName, acceptsContentType, req.URL.Path)
+			writeErrorResponse(w, req, BucketAlreadyExists, acceptsContentType, req.URL.Path)
-		}
-	case drivers.ImplementationError:
-		{
-			log.Error.Println(err)
-			writeErrorResponse(w, req, InternalError, acceptsContentType, req.URL.Path)
 		}
 	default:
 		{
-			log.Error.Println(err)
+			log.Error.Println(iodine.New(err, nil))
 			writeErrorResponse(w, req, InternalError, acceptsContentType, req.URL.Path)
 		}
 	}

pkg/api/api_test.go

@@ -950,6 +950,38 @@ func (s *MySuite) TestListBucketsErrors(c *C) {
 	verifyError(c, response, "InternalError", "We encountered an internal error, please try again.", http.StatusInternalServerError)
 }
 
+func (s *MySuite) TestPutBucketHandler(c *C) {
+	driver := startMockDriver()
+	typedDriver := driver
+	defer driver.AssertExpectations(c)
+
+	httpHandler := api.HTTPHandler("", driver)
+	testServer := httptest.NewServer(httpHandler)
+	defer testServer.Close()
+	client := http.Client{}
+
+	typedDriver.On("CreateBucket", "foo").Return(drivers.BucketNameInvalid{}).Once()
+	request, err := http.NewRequest("PUT", testServer.URL+"/foo", bytes.NewBufferString(""))
+	c.Assert(err, IsNil)
+	response, err := client.Do(request)
+	c.Assert(err, IsNil)
+	verifyError(c, response, "InvalidBucketName", "The specified bucket is not valid.", http.StatusBadRequest)
+
+	typedDriver.On("CreateBucket", "foo").Return(drivers.BucketExists{}).Once()
+	request, err = http.NewRequest("PUT", testServer.URL+"/foo", bytes.NewBufferString(""))
+	c.Assert(err, IsNil)
+	response, err = client.Do(request)
+	c.Assert(err, IsNil)
+	verifyError(c, response, "BucketAlreadyExists", "The requested bucket name is not available.", http.StatusConflict)
+
+	typedDriver.On("CreateBucket", "foo").Return(drivers.BackendCorrupted{}).Once()
+	request, err = http.NewRequest("PUT", testServer.URL+"/foo", bytes.NewBufferString(""))
+	c.Assert(err, IsNil)
+	response, err = client.Do(request)
+	c.Assert(err, IsNil)
+	verifyError(c, response, "InternalError", "We encountered an internal error, please try again.", http.StatusInternalServerError)
+}
+
 func verifyError(c *C, response *http.Response, code, description string, statusCode int) {
 	data, err := ioutil.ReadAll(response.Body)
 	c.Assert(err, IsNil)