Generalizes golden script tests

[merschformann]

Description

Generalizes former golden bash tests to golden script tests, i.e., allows use of the tooling for other scripting environments like PowerShell, etc..

Changes

• Generalizes golden bash testing to golden script testing.

  • You can now specify how your scripts need to be run:

    ScriptExtensions: map[string]string{
      ".sh": "bash",
    }

  • This allows you to run PowerShell, other scripts or even totally different tools with the same functionality. Just define a specific extension for them and a command to run them.

• BashTest was renamed to ScriptTest to better reflect the new functionality.
• BashTestFile was renamed to ScriptTestFile and now accepts a command for running the script (instead of fixing it to bash).
• BashTestFile and BashTest are still available for backwards compatibility reasons though.

Resolves ENG-6270

[Copilot]

Pull Request Overview

Generalizes golden bash tests to support arbitrary scripting environments by introducing a generic ScriptTest framework. Key changes:

• Renames BashTest/BashConfig to ScriptTest/ScriptConfig and updates the consuming code.
• Adds a ScriptExtensions map to configure commands for different file extensions.
• Updates existing tests to pass ScriptConfig while keeping a BashTest wrapper for backward compatibility.

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
run/tests/simple/main_test.go	Switched from BashConfig to ScriptConfig in simple test.
run/tests/http/too_many_requests/main_test.go	Same switch in HTTP too-many-requests test.
run/tests/http/sync/main_test.go	Same switch in HTTP sync test.
run/tests/http/error_log/main_test.go	Same switch in HTTP error-log test.
run/tests/http/async/main_test.go	Same switch in HTTP async test.
golden/script.go	Introduced generic ScriptTest logic; removed hardcoded .sh paths.
golden/dag.go	Updated DagTest to use ScriptConfig instead of BashConfig.
golden/config.go	Renamed BashConfig to ScriptConfig and added ScriptExtensions.

Comments suppressed due to low confidence (5)

golden/script.go:38

• [nitpick] Update the doc comment to clarify that ScriptTest considers all extensions provided in ScriptExtensions, not just .sh files.

// ScriptTest executes a golden file test for scripts. It walks over the

run/tests/simple/main_test.go:41

• [nitpick] The test function is still named TestGoldenBash but now runs generic scripts; consider renaming it to TestGoldenScript to reflect the new behavior.

func TestGoldenBash(t *testing.T) {

golden/script.go:10

• Add missing imports for packages used in this file: fmt (for fmt.Sprintf and fmt.Errorf), bytes (for bytes.Buffer), and encoding/json (for JSON marshal/unmarshal in processOutput).

	"slices"

golden/dag.go:74

• Initializing ScriptConfig without defaulting ScriptExtensions means ScriptTest will fail; consider setting ScriptExtensions = map[string]string{".sh":"bash"} when Config is nil or require it in the test cases.

			config := ScriptConfig{}

golden/script.go:198

• [nitpick] Using the full script path as the subtest name may be too verbose; consider using filepath.Base(script) for a concise test name.

	t.Run(script, f)