feat(prompt/prompter.go):add test case for prompter.go

console/prompt/prompter_test.go

@@ -0,0 +1,74 @@
+package prompt_test
+
+import (
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/console/prompt"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPromptInput(t *testing.T) {
+	// Simulate user input
+	mockInput := "test input\n"
+	r, w, _ := os.Pipe()
+	w.WriteString(mockInput)
+	w.Close()
+	os.Stdin = r // Replace os.Stdin temporarily
+
+	// Create a new prompter
+	p := prompt.NewTerminalPrompter()
+	defer func() { os.Stdin = os.NewFile(uintptr(0), "/dev/tty") }() // Restore os.Stdin
+
+	// Test PromptInput
+	result, err := p.PromptInput("Enter something: ")
+	assert.NoError(t, err)
+	assert.Equal(t, strings.TrimSpace(mockInput), result)
+}
+
+func TestPromptPassword(t *testing.T) {
+	// Simulate password input
+	mockPassword := "secret\n"
+	r, w, _ := os.Pipe()
+	w.WriteString(mockPassword)
+	w.Close()
+	os.Stdin = r // Replace os.Stdin temporarily
+
+	// Create a new prompter
+	p := prompt.NewTerminalPrompter()
+	defer func() { os.Stdin = os.NewFile(uintptr(0), "/dev/tty") }() // Restore os.Stdin
+
+	// Test PromptPassword
+	result, err := p.PromptPassword("Enter password: ")
+	assert.NoError(t, err)
+	assert.Equal(t, strings.TrimSpace(mockPassword), result)
+}
+
+func mockStdin(input string) (restore func()) {
+	// Create a pipe to replace stdin
+	r, w, _ := os.Pipe()
+	w.WriteString(input)
+	w.Close()
+
+	// Replace os.Stdin with the pipe
+	originalStdin := os.Stdin
+	os.Stdin = r
+
+	// Return a function to restore original stdin
+	return func() {
+		os.Stdin = originalStdin
+	}
+}
+
+func TestPromptConfirm(t *testing.T) {
+	// Test confirmation (yes)
+	mockInput := "y\n"
+	restore := mockStdin(mockInput)
+	defer restore()
+
+	p := prompt.NewTerminalPrompter()
+	result, err := p.PromptConfirm("Do you confirm?")
+	assert.NoError(t, err, "Expected no error for valid input")
+	assert.True(t, result, "Expected confirmation to return true")
+}