重組前檢查點:根目錄 main package

updatepassword_test.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"strings"
+	"testing"
+)
+
+// go test 執行時 stdin 不是終端機,輸入驗證應在連線資料庫前就失敗。
+func TestRunUpdatePasswordValidatesInput(t *testing.T) {
+	tests := []struct {
+		name    string
+		args    []string
+		wantErr string
+	}{
+		{"缺 username", nil, "username"},
+		{"username 僅空白", []string{"-username", "   "}, "username"},
+		{"省略 -password 且非終端機", []string{"-username", "alice"}, "-password"},
+		{"新密碼過短", []string{"-username", "alice", "-password", "1234567"}, "8"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := runUpdatePassword(tt.args)
+			if err == nil || !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("runUpdatePassword(%v) = %v, want error containing %q", tt.args, err, tt.wantErr)
+			}
+		})
+	}
+}