updates workflows

.github/workflows/tests.yml

@@ -15,8 +15,9 @@ jobs:
     strategy:
       matrix:
         goversion:
+          - "1.19"
+          - "1.18"
           - "1.17"
-          - "1.16"
     steps:
       - name: Set up Go
         uses: actions/setup-go@v1
@@ -27,4 +28,4 @@ jobs:
       - name: Get dependencies
         run: go get ./...
       - name: Run Unit Tests
-        run: go test -v -cover -race ./...
+        run: go test -modfile=go_test.mod -v -cover -race ./...

.travis.yml

@@ -7,4 +7,4 @@ install:
   - go get ./...
 
 script:
-  - go test -v --short ./...
+  - go test -modfile=go_test.mod -v --short ./...