* Updating the license from MPL to Business Source License
Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at https://hashi.co/bsl-blog, FAQ at https://hashi.co/license-faq, and details of the license at www.hashicorp.com/bsl.
* Update copyright file headers to BUSL-1.1
---------
Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
This function can be used to check if a Provisioner has been marked for testing within the ACC_TEST_PROVISIONERS environment variable.
While testing I found that the shell acceptance test were also running when trying to run powershell tests.
Before change
```
⇶ ACC_TEST_BUILDERS=amazon-ebs ACC_TEST_PROVISIONERS=powershell go test -v ./provisioner/shell/... -timeout=1h
=== RUN
TestShellProvisioner/testing_amazon-ebs_builder_against_shell_provisioner
2020/04/06 15:18:12 ui: amazon-ebs: output will be in this color.
2020/04/06 15:18:12 ui:
2020/04/06 15:18:12 Build debug mode: false
2020/04/06 15:18:12 Force build: false
2020/04/06 15:18:12 On error:
2020/04/06 15:18:12 Preparing build: amazon-ebs
2020/04/06 15:18:12 Waiting on builds to complete...
2020/04/06 15:18:12 Starting build run: amazon-ebs
2020/04/06 15:18:12 Running builder: amazon-ebs
```
After changes
```
⇶ ACC_TEST_BUILDERS=amazon-ebs ACC_TEST_PROVISIONERS=powershell go test -v ./provisioner/shell/... -timeout=1h
--- SKIP: TestShellProvisioner (0.00s)
provisioners.go:88: Provisioner "shell" not defined in ACC_TEST_PROVISIONERS
```