// Admin.NET 项目的版权、商标、专利和其他相关权利均受相应法律法规的保护。使用本项目应遵守相关法律法规和许可证的要求。
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//
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// 本项目主要遵循 MIT 许可证和 Apache 许可证（版本 2.0）进行分发和使用。许可证位于源代码树根目录中的 LICENSE-MIT 和 LICENSE-APACHE 文件。
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//
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// 不得利用本项目从事危害国家安全、扰乱社会秩序、侵犯他人合法权益等法律法规禁止的活动！任何基于本项目二次开发而产生的一切法律纠纷和责任，我们不承担任何责任！
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using Admin.NET.Core;
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using Xunit;
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namespace Admin.NET.Test.Utils;
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public class SafeMathTests
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{
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[Fact]
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public void Add_IntAndDouble_ReturnsCorrectResult()
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{
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// Arrange
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int left = 10;
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double right = 20.5;
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// Act
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var result = SafeMath.Add<int>(left, right, precision: 2);
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// Assert
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Assert.Equal(30, result); // 10 + 20.5 = 30.5，四舍五入后为 30
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}
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[Fact]
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public void Add_StringAndDecimal_ReturnsCorrectResult()
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{
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// Arrange
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string left = "15.75";
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decimal right = 4.25m;
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// Act
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var result = SafeMath.Add<decimal>(left, right, precision: 2);
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// Assert
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Assert.Equal(20.00m, result); // 15.75 + 4.25 = 20.00
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}
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[Fact]
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public void Sub_DoubleAndInt_ReturnsCorrectResult()
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{
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// Arrange
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double left = 50.75;
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int right = 25;
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// Act
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var result = SafeMath.Sub<double>(left, right, precision: 2);
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// Assert
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Assert.Equal(25.75, result); // 50.75 - 25 = 25.75
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}
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[Fact]
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public void Mult_DecimalAndFloat_ReturnsCorrectResult()
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{
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// Arrange
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decimal left = 10.5m;
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float right = 2.0f;
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// Act
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var result = SafeMath.Mult<decimal>(left, right, precision: 2);
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// Assert
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Assert.Equal(21.00m, result); // 10.5 * 2.0 = 21.00
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}
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[Fact]
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public void Div_IntAndInt_ReturnsCorrectResult()
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{
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// Arrange
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int left = 10;
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int right = 3;
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// Act
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var result = SafeMath.Div<double>(left, right, precision: 4);
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// Assert
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Assert.Equal(3.3333, result); // 10 / 3 = 3.3333
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}
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[Fact]
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public void Div_ByZero_ReturnsDefaultValue()
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{
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// Arrange
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int left = 10;
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int right = 0;
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// Act
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int result = SafeMath.Div(left, right, defaultValue: -1, throwOnDivideByZero: false);
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// Assert
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Assert.Equal(-1, result); // 除数为 0，返回默认值 -1
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}
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[Fact]
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public void Div_ByZero_ThrowsException()
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{
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// Arrange
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int left = 10;
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int right = 0;
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// Act & Assert
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Assert.Throws<DivideByZeroException>(() =>
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{
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SafeMath.Div<double>(left, right, throwOnDivideByZero: true);
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});
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}
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[Fact]
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public void SafeConvert_StringToInt_ReturnsCorrectResult()
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{
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// Arrange
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string value = "42";
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// Act
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int result = SafeMath.SafeConvert(value, defaultValue: -1);
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// Assert
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Assert.Equal(42, result); // 字符串 "42" 转换为 int 42
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}
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[Fact]
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public void SafeConvert_InvalidString_ReturnsDefaultValue()
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{
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// Arrange
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string value = "invalid";
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// Act
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int result = SafeMath.SafeConvert(value, defaultValue: -1);
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// Assert
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Assert.Equal(-1, result); // 转换失败，返回默认值 -1
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}
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[Fact]
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public void ConvertToDecimal_Int_ReturnsCorrectResult()
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{
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// Arrange
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int value = 42;
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// Act
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decimal result = SafeMath.ConvertToDecimal(value);
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// Assert
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Assert.Equal(42m, result); // int 42 转换为 decimal 42m
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}
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[Fact]
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public void ConvertToDecimal_String_ReturnsCorrectResult()
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{
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// Arrange
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string value = "42.75";
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// Act
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decimal result = SafeMath.ConvertToDecimal(value);
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// Assert
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Assert.Equal(42.75m, result); // 字符串 "42.75" 转换为 decimal 42.75m
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}
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[Fact]
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public void ConvertToDecimal_InvalidString_ReturnsZero()
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{
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// Arrange
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string value = "invalid";
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// Act & Assert
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Assert.Throws<InvalidCastException>(() => SafeMath.ConvertToDecimal(value));
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}
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[Fact]
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public void Add_LeftNull_ReturnsDefaultValue()
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{
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// Arrange
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object left = null;
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int right = 20;
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// Act
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int result = SafeMath.Add<int>(left, right);
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// Assert
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Assert.Equal(20, result); // 左操作数为 null
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}
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[Fact]
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public void Add_RightNull_ReturnsDefaultValue()
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{
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// Arrange
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int left = 10;
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object right = null;
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// Act
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var result = SafeMath.Add<int>(left, right);
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// Assert
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Assert.Equal(10, result); // 右操作数为 null
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}
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[Fact]
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public void Sub_LeftNull_ReturnsDefaultValue()
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{
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// Arrange
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object left = null;
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int right = 20;
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// Act
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int result = SafeMath.Sub<int>(left, right);
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// Assert
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Assert.Equal(-20, result); // 左操作数为 null
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}
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[Fact]
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public void Sub_RightNull_ReturnsDefaultValue()
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{
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// Arrange
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int left = 10;
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object right = null;
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// Act
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var result = SafeMath.Sub<int>(left, right);
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// Assert
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Assert.Equal(10, result); // 右操作数为 null
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}
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[Fact]
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public void Mult_LeftNull_ReturnsDefaultValue()
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{
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// Arrange
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object left = null;
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int right = 20;
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// Act
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int result = SafeMath.Mult<int>(left, right);
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// Assert
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Assert.Equal(0, result); // 左操作数为 null
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}
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[Fact]
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public void Mult_RightNull_ReturnsDefaultValue()
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{
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// Arrange
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int left = 10;
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object right = null;
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// Act
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int result = SafeMath.Mult<int>(left, right);
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// Assert
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Assert.Equal(0, result); // 右操作数为 null
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}
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[Fact]
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public void Div_LeftNull_ReturnsDefaultValue()
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{
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// Arrange
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object left = null;
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int right = 20;
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// Act
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int result = SafeMath.Div<int>(left, right);
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// Assert
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Assert.Equal(0, result); // 左操作数为 null
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}
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[Fact]
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public void Div_RightNull_ReturnsDefaultValue()
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{
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// Arrange
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int left = 10;
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object right = null;
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// Act
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Assert.Throws<DivideByZeroException>(() =>
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{
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int result = SafeMath.Div<int>(left, right);
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// Assert
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Assert.Equal(-1, result); // 右操作数为 null，返回默认值 -1
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});
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}
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[Fact]
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public void SafeConvert_NullInput_ReturnsDefaultValue()
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{
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// Arrange
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object value = null;
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// Act
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int result = SafeMath.SafeConvert<int>(value, defaultValue: -1);
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// Assert
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Assert.Equal(-1, result); // 输入为 null，返回默认值 -1
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}
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[Fact]
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public void ConvertToDecimal_NullInput_ReturnsZero()
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{
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// Arrange
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object value = null;
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// Act
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decimal result = SafeMath.ConvertToDecimal(value);
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// Assert
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Assert.Equal(0m, result); // 输入为 null，返回默认值 0m
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}
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}
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