44 lines
1.4 KiB
C#
44 lines
1.4 KiB
C#
using System.Linq.Expressions;
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using HopFrame.Core.Helpers;
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namespace HopFrame.Tests.Core.Helpers;
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public class ExpressionHelperTests {
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[Fact]
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public void GetPropertyInfo_ReturnsPropertyInfo_WhenExpressionIsValid() {
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Expression<Func<TestModel, int>> expr = x => x.Id;
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var prop = ExpressionHelper.GetPropertyInfo(expr);
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Assert.Equal(nameof(TestModel.Id), prop.Name);
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Assert.Equal(typeof(int), prop.PropertyType);
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}
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[Fact]
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public void GetPropertyInfo_Throws_WhenExpressionRefersToMethod() {
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Expression<Func<TestModel, int>> expr = x => x.Method();
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var ex = Assert.Throws<ArgumentException>(() => ExpressionHelper.GetPropertyInfo(expr));
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Assert.Contains("refers to a method", ex.Message);
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}
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[Fact]
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public void GetPropertyInfo_Throws_WhenExpressionRefersToField() {
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Expression<Func<TestModel, int>> expr = x => x.FieldBacking;
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var ex = Assert.Throws<ArgumentException>(() => ExpressionHelper.GetPropertyInfo(expr));
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Assert.Contains("refers to a field", ex.Message);
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}
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[Fact]
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public void GetPropertyInfo_Throws_WhenExpressionBodyIsNotMemberExpression() {
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Expression<Func<TestModel, int>> expr = x => 5;
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var ex = Assert.Throws<ArgumentException>(() => ExpressionHelper.GetPropertyInfo(expr));
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Assert.Contains("refers to a method, not a property", ex.Message);
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}
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} |