在Robot框架中实例化C#对象

我希望使用Robot框架来测试.NET应用程序，我很难理解Robot框架如何实例化C#对象，以便在测试中使用

我正在使用的C#应用程序非常简单：

SystemUnderTest solution
|_ DataAccess project (uses Entity Framework to connect to database)
|  |_ SchoolContext class
|
|_ Models project
   |_ Student class
|
|_ SchoolGrades project (class library)
   |_ SchoolRoll class
      |_ AddStudent(Student) method

我想从Robot框架中执行AddStudent方法，传入一个Student对象，该对象应该保存到数据库中

我用Python编写了一个测试库，用于调用.NET应用程序：

import clr
import sys

class SchoolGradesLibrary (object):

    def __init__(self, application_path, connection_string):

        self._application_path = application_path
        sys.path.append(application_path)

        # Need application directory on sys path before we can add references to the DLLs.
        clr.AddReference("SchoolGrades")
        clr.AddReference("DataAccess")
        clr.AddReference("Models")

        from SchoolGrades import SchoolRoll
        from DataAccess import SchoolContext
        from Models import Student

        context = SchoolContext(connection_string)
        self._schoolRoll = SchoolRoll(context)

    def add_student(self, student):

        self._schoolRoll.AddStudent(student)

从Python调用此函数可以：

from SchoolGradesLibrary import SchoolGradesLibrary
import clr

application_path = r"C:\...\SchoolGrades\bin\Debug"
connection_string = r"Data Source=...;Initial Catalog=...;Integrated Security=True"

schoolLib = SchoolGradesLibrary(application_path, connection_string)

# Have to wait to add reference until after initializing SchoolGradesLibrary, 
# as that adds the application directory to sys path.
clr.AddReference("Models")
from Models import Student

student = Student()
student.StudentName = "Python Student"
schoolLib.add_student(student)

对于如何从Robot框架做同样的事情，我有点不知所措。到目前为止，我得到的是：

*** Variables ***
${APPLICATION_PATH} =    C:\...\SchoolGrades\bin\Debug
${CONNECTION_STRING} =   Data Source=...;Initial Catalog=...;Integrated Security=True

*** Settings ***
Library    SchoolGradesLibrary    ${APPLICATION_PATH}    ${CONNECTION_STRING}

*** Test Cases ***
Add Student To Database
    ${student} =           Student
    ${student.StudentName} =    RF Student
    Add Student            ${student}

当我运行此操作时失败，并显示错误消息：

未找到名为“Student”的关键字。

如何在Robot框架中创建一个学生对象，以传递给AddStudent关键字？考试还有什么明显的问题吗

---

C#应用程序是用.NET 4.5.1编写的，Python版本是3.5，Robot框架版本是3.0。

如果没有助手实用程序，您可能无法在Robot中直接实例化

Student

，因为

Student

是一个类而不是一个关键字

最简单的解决方案是在SchoolGradesLibrary中创建一个关键字来创建学生：

...
import clr
clr.AddReference("Models")
from Models import Student
...

class SchoolGradesLibrary (object):
    ...
    def create_student(name=None):
        student = Student()
        if name is not None:
            student.StudentName = name
        return student
    ...

然后，您可以在测试用例中像普通关键字一样使用它

${student}=    create student    Inigo Montoya