状況

ローカル実行するとうまくいく。
githubactionsでも、同様にgo testで実行している

go test -v -timeout 30m

メッセージ

| TestTerraformAwsCloudFrontCustomDomain 2022-11-25T08:12:43Z logger.go:66: ::set-output name=exitcode::0
|     output.go:19:
|               Error Trace:    /home/yuta/terraform/aws/infra/test/output.go:19
|                                                       /home/yuta/terraform/aws/infra/test/custom_header_test.go:49
|                                                       /home/yuta/terraform/aws/infra/test/custom_header_test.go:38
|               Error:          Received unexpected error:
|                               invalid character 'c' looking for beginning of value
|               Test:           TestTerraformAwsCloudFrontCustomDomain
| --- FAIL: TestTerraformAwsCloudFrontCustomDomain (499.91s)
| FAIL
| exit status 1
| FAIL  test    499.914s

対処方法

terraform_wrapper: falseをつける

steps:
- uses: hashicorp/setup-terraform@v2
  with:
    terraform_wrapper: false

参考

https://github.com/gruntwork-io/terratest/issues/706
https://github.com/gruntwork-io/terratest/issues/779