Fixed the logic of extracting alloc

command/agent/fs_endpoint.go

@@ -21,7 +21,6 @@ func (s *HTTPServer) DirectoryListRequest(resp http.ResponseWriter, req *http.Re
 
 func (s *HTTPServer) FileStatRequest(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
 	var allocID, path string
-
 	if allocID = strings.TrimPrefix(req.URL.Path, "/v1/client/fs/stat/"); allocID == "" {
 		return nil, fmt.Errorf("alloc id not found")
 	}

command/agent/fs_endpoint_test.go

@@ -0,0 +1,48 @@
+package agent
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestHTTP_FSDirectoryList(t *testing.T) {
+	httpTest(t, nil, func(s *TestServer) {
+		req, err := http.NewRequest("GET", "/v1/client/fs/ls", nil)
+		if err != nil {
+			t.Fatalf("err: %v", err)
+		}
+		respW := httptest.NewRecorder()
+
+		_, err = s.Server.DirectoryListRequest(respW, req)
+		if err == nil {
+			t.Fatal("expected error")
+		}
+	})
+}
+
+func TestHTTP_FSStat(t *testing.T) {
+	httpTest(t, nil, func(s *TestServer) {
+		req, err := http.NewRequest("GET", "/v1/client/fs/stat/", nil)
+		if err != nil {
+			t.Fatalf("err: %v", err)
+		}
+		respW := httptest.NewRecorder()
+
+		_, err = s.Server.FileStatRequest(respW, req)
+		if err == nil {
+			t.Fatal("expected error")
+		}
+
+		req, err = http.NewRequest("GET", "/v1/client/fs/stat/foo", nil)
+		if err != nil {
+			t.Fatalf("err: %v", err)
+		}
+		respW = httptest.NewRecorder()
+
+		_, err = s.Server.FileStatRequest(respW, req)
+		if err == nil {
+			t.Fatal("expected error")
+		}
+	})
+}