Add appendonly no case in directory creation test

Author: UdeshyaDhungana

internal/filesystem_assertion/dir_does_not_exist_assertion.go

@@ -0,0 +1,44 @@
+package filesystem_assertion
+
+import (
+	"fmt"
+	"os"
+
+	"al.essio.dev/pkg/shellescape"
+)
+
+type DirDoesNotExistAssertion struct {
+	AbsolutePath string
+}
+
+func (a *DirDoesNotExistAssertion) Run() FilesystemAssertionResult {
+	if a.AbsolutePath == "" {
+		panic("Codecrafters Internal Error - AbsolutePath in DirDoesNotExistAssertion cannot be empty")
+	}
+
+	info, err := os.Stat(a.AbsolutePath)
+	escapedPath := shellescape.Quote(a.AbsolutePath)
+
+	if err != nil {
+		if os.IsNotExist(err) {
+			return FilesystemAssertionResult{
+				Logs: []FilesystemAssertionLog{
+					NewFilesystemAssertionLog(_SUCCESS, fmt.Sprintf("✔ Directory %s does not exist", escapedPath)),
+				},
+			}
+		}
+		return FilesystemAssertionResult{
+			Err: fmt.Errorf("Error retrieving directory info of %s: %w", escapedPath, err),
+		}
+	}
+
+	if info.IsDir() {
+		return FilesystemAssertionResult{
+			Err: fmt.Errorf("Expected directory %s to not exist, found directory", escapedPath),
+		}
+	}
+
+	return FilesystemAssertionResult{
+		Err: fmt.Errorf("Expected directory %s to not exist, found non-directory file", escapedPath),
+	}
+}

internal/redis_executable/redis_executable.go

@@ -14,6 +14,10 @@ type RedisExecutable struct {
 	executable *executable.Executable
 	logger     *logger.Logger
 	args       []string
+
+	// isRunning is set to true after a successful .Start()
+	// and set to false after a successful .Kill()
+	isRunning bool
 }
 
 func NewRedisExecutable(stageHarness *test_case_harness.TestCaseHarness) *RedisExecutable {
@@ -48,6 +52,7 @@ func (b *RedisExecutable) Run(args ...string) error {
 		return err
 	}
 
+	b.isRunning = true
 	return nil
 }
 
@@ -56,12 +61,18 @@ func (b *RedisExecutable) HasExited() bool {
 }
 
 func (b *RedisExecutable) Kill() error {
+	if !b.isRunning {
+		return nil
+	}
+
 	b.logger.Debugf("Terminating program")
 	if err := b.executable.Kill(); err != nil {
 		b.logger.Debugf("Error terminating program: '%v'", err)
 		return err
 	}
 
 	b.logger.Debugf("Program terminated successfully")
+
+	b.isRunning = false
 	return nil // When does this happen?
 }