refactor: Update test script prompt and logging for improved clarity and functionality

Author: statico

internal/llm/prompts.go

@@ -38,7 +38,7 @@ You *MUST NOT* include any other text, explanations, or markdown formatting.
 
 	// TestScriptPrompt is used to generate the test script
 	TestScriptPrompt = `You are an expert in testing shell scripts with extensive experience in test automation and quality assurance.
-Your goal is to create a comprehensive test script that verifies the functionality of the main script, including edge cases and error conditions.
+Your goal is to create a test script that verifies the functionality of the main script, ./script.sh, including edge cases and error conditions.
 
 Create a test script for the following script:
 
@@ -56,13 +56,15 @@ Target platform Information:
 </target_platform>
 
 <requirements>
-- Create a test script that runs one or more test cases to make sure the main script works as expected
+- Create a test script that runs one or more test cases to make sure that ./script.sh works as expected
 - Each test case should:
    - Set up the test environment
    - Run the main script with test inputs
    - Verify the output matches expectations
-   - Clean up after the test
+   - Clean up after the test only if necessary
 - Use standard shell commands (sh/bash) with POSIX compliance where possible
+- The test script should not need any arguments to run
+- Return exit code 0 if all tests pass, or 1 if any test fails
 - Set appropriate timeouts for any long-running tests
 - Handle environment variables and cleanup
 - Ensure platform compatibility

internal/script/pipeline.go

@@ -152,12 +152,14 @@ func (p *Pipeline) runTestScript(ctx context.Context, scripts llm.ScriptPair) er
 	cmd.Dir = testDir
 
 	output, err := cmd.CombinedOutput()
+	log.Debug("Test script output:\n%s", output)
 	if err != nil {
+		if exitErr, ok := err.(*exec.ExitError); ok {
+			log.Debug("Test script exited with code: %d", exitErr.ExitCode())
+		}
 		return fmt.Errorf("test script failed: %w\nOutput:\n%s", err, output)
 	}
-
-	// Log test script output in verbose mode
-	log.Debug("Test script output:\n%s", output)
+	log.Debug("Test script exited with code: 0")
 
 	return nil
 }