使用 Nunit 或 Microsoft.VisualStudio.TestTools.UnitTesting。现在我的断言失败了。
[TestMethod]
public void GivenEmptyBoardExpectEmptyBoard()
{
var test = new Board();
var input = new Board()
{
Rows = new List<Row>()
{
new Row(){Cells = new List<int>(){0,0,0,0}},
new Row(){Cells = new List<int>(){0,0,0,0}},
new Row(){Cells = new List<int>(){0,0,0,0}},
new Row(){Cells = new List<int>(){0,0,0,0}},
}
};
var expected = new Board()
{
Rows = new List<Row>()
{
new Row(){Cells = new List<int>(){0,0,0,0}},
new Row(){Cells = new List<int>(){0,0,0,0}},
new Row(){Cells = new List<int>(){0,0,0,0}},
new Row(){Cells = new List<int>(){0,0,0,0}},
}
};
var lifeOrchestration = new LifeOrchestration();
var actual = lifeOrchestration.Evolve(input);
Assert.AreEqual(expected, actual);
}
最佳答案
您有两个不同的 Board
实例,因此您对 Assert.AreEqual
的调用将失败。即使它们的全部内容看起来相同,您也是在比较引用,而不是基础值。
您必须指定使两个 Board
实例相等的原因。
你可以在你的测试中这样做:
Assert.AreEqual(expected.Rows.Count, actual.Rows.Count);
Assert.AreEqual(expected.Rows[0].Cells[0], actual.Rows[0].Cells[0]);
// Lots more tests of equality...
或者你可以在你的类里面这样做:(注意我是即时写的 - 你会想要调整它)
public class Board
{
public List<Row> Rows = new List<Row>();
public override bool Equals(object obj)
{
var board = obj as Board;
if (board == null)
return false;
if (board.Rows.Count != Rows.Count)
return false;
return !board.Rows.Where((t, i) => !t.Equals(Rows[i])).Any();
}
public override int GetHashCode()
{
// determine what's appropriate to return here - a unique board id may be appropriate if available
}
}
public class Row
{
public List<int> Cells = new List<int>();
public override bool Equals(object obj)
{
var row = obj as Row;
if (row == null)
return false;
if (row.Cells.Count != Cells.Count)
return false;
if (row.Cells.Except(Cells).Any())
return false;
return true;
}
public override int GetHashCode()
{
// determine what's appropriate to return here - a unique row id may be appropriate if available
}
}
关于C# - 在单元测试中断言两个对象相等,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/23530982/