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Add test cases for nullable Equals methods

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Adds test cases for Equals methods with nullable reference type parameters
(object?) to verify the fix works correctly.

Co-authored-by: hvitved <3667920+hvitved@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2026-02-16 10:35:29 +00:00
parent fdbc72a673
commit 0bc0c59a14
2 changed files with 15 additions and 0 deletions
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13
csharp/ql/test/library-tests/frameworks/system/Equals/Equals.cs
View File

@@ -24,3 +24,16 @@ struct Equals1Struct
{
public override bool Equals(object other) => false;
}
#nullable enable
class NullableEquals1
{
public override bool Equals(object? other) => false;
}
class NullableEquals2 : IEquatable<NullableEquals2>
{
public bool Equals(NullableEquals2? other) => other != null;
public override bool Equals(object? other) => other is NullableEquals2 n && Equals(n);
}

2
csharp/ql/test/library-tests/frameworks/system/Equals/Equals.expected
View File

@@ -5,3 +5,5 @@
| Equals.cs:16:7:16:13 | Equals3 | Equals3.Equals(Equals3) | true |
| Equals.cs:21:8:21:21 | NoEqualsStruct | System.ValueType.Equals(object) | false |
| Equals.cs:23:8:23:20 | Equals1Struct | Equals1Struct.Equals(object) | true |
| Equals.cs:31:7:31:21 | NullableEquals1 | NullableEquals1.Equals(object) | true |
| Equals.cs:36:7:36:21 | NullableEquals2 | NullableEquals2.Equals(NullableEquals2) | true |