# Configure parallel tests with Go
<a name="sample-parallel-test-go"></a>

The following is sample of a `buildspec.yml` that shows parallel test execution with Go on an Linux platform:

```
version: 0.2

batch:
  fast-fail: false
  build-fanout:
    parallelism: 5
    ignore-failure: false

phases:
  install:
    commands:
      - echo 'Fetching Go version'
      - go version
  pre_build:
    commands:
      - echo 'prebuild'
  build:
    commands:
      - echo 'Running go Tests'
      - go mod init calculator
      - cd calc
      - |
        codebuild-tests-run \
         --test-command "go test -v calculator.go" \
         --files-search "codebuild-glob-search '**/*test.go'"
  post_build:
    commands:
      - echo "Test execution completed"
```

In above example, `calculator.go` function contains simple mathematical functions to test and all test files and `calculator.go` file is inside `calc` folder.