style(commands): normalize resource handling

internal/cli/commands/hook_test.go

@@ -1,48 +1,48 @@
 package commands
 
 import (
-    "bytes"
-    "io"
-    "os"
-    "testing"
+	"os"
+	"testing"
 )
 
 // Mockable os.Exit for testing
 var osExitOriginal = os.Exit
 var osExit = os.Exit
 
 func TestHookPreToolInvalidSymbol(t *testing.T) {
-    // Prepare JSON input with a non-existent symbol
-    jsonInput := []byte(`{"tool_name":"pizen-lea__impact","tool_input":{"symbol":"nonexistent_symbol"}}`)
-    // Replace stdin with pipe containing JSON input
-    oldStdin := os.Stdin
-    r, w, err := os.Pipe()
-    if err != nil {
-        t.Fatalf("pipe error: %v", err)
-    }
-    _, err = w.Write(jsonInput)
-    if err != nil {
-        t.Fatalf("write error: %v", err)
-    }
-    w.Close()
-    os.Stdin = r
-    // Capture exit code via mocking os.Exit
-    exitCode := 0
-    osExit = func(code int) {
-        exitCode = code
-        panic("os.Exit called")
-    }
-    defer func() {
-        // Restore globals
-        os.Stdin = oldStdin
-        os.Exit = osExitOriginal
-        if r := recover(); r != nil {
-            // expected panic from os.Exit
-        }
-        if exitCode != 2 {
-            t.Fatalf("expected exit code 2, got %d", exitCode)
-        }
-    }()
-    // Run the pre-tool hook command
-    hookPreToolCmd.Run(nil, []string{})
+	// Prepare JSON input with a non-existent symbol
+	jsonInput := []byte(`{"tool_name":"pizen-lea__impact","tool_input":{"symbol":"nonexistent_symbol"}}`)
+	// Replace stdin with pipe containing JSON input
+	oldStdin := os.Stdin
+	r, w, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("pipe error: %v", err)
+	}
+	_, err = w.Write(jsonInput)
+	if err != nil {
+		t.Fatalf("write error: %v", err)
+	}
+	if err := w.Close(); err != nil {
+		t.Fatalf("close error: %v", err)
+	}
+
+	os.Stdin = r
+	// Capture exit code via mocking os.Exit
+	exitCode := 0
+	osExit = func(code int) {
+		exitCode = code
+		panic("os.Exit called")
+	}
+	defer func() {
+		// Restore stdin and osExit variable
+		os.Stdin = oldStdin
+		osExit = osExitOriginal
+		// Recover from mocked os.Exit panic
+		_ = recover() // ignore panic from os.Exit mock
+		if exitCode != 2 {
+			t.Fatalf("expected exit code 2, got %d", exitCode)
+		}
+	}()
+	// Run the pre-tool hook command
+	hookPreToolCmd.Run(nil, []string{})
 }