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Meir017Meir017
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feat: NUnit Rewrite parameters order when handling constant values in assertions (#372)
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2 files changed

+29
-3
lines changed

2 files changed

+29
-3
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‎src/FluentAssertions.Analyzers.Tests/Tips/NunitTests.cs

Lines changed: 24 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -919,12 +919,14 @@ public void Nunit4_AssertLessOrEqual_TestCodeFix(string oldAssertion, string new
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[DataTestMethod]
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[AssertionDiagnostic("Assert.AreEqual(expected, actual, delta{0});")]
922+
[AssertionDiagnostic("Assert.AreEqual(actual, 4.2d, delta{0});")]
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[Implemented]
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public void Nunit3_AssertEqualDouble_TestAnalyzer(string assertion)
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=> Nunit3VerifyDiagnostic("double expected, double actual, double delta", assertion);
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[DataTestMethod]
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[AssertionDiagnostic("ClassicAssert.AreEqual(expected, actual, delta{0});")]
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[AssertionDiagnostic("ClassicAssert.AreEqual(actual, 4.2d, delta{0});")]
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[Implemented]
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public void Nunit4_AssertEqualDouble_TestAnalyzer(string assertion)
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=> Nunit4VerifyDiagnostic("double expected, double actual, double delta", assertion);
@@ -933,6 +935,9 @@ public void Nunit4_AssertEqualDouble_TestAnalyzer(string assertion)
933935
[AssertionCodeFix(
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oldAssertion: "Assert.AreEqual(expected, actual, delta{0});",
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newAssertion: "actual.Should().BeApproximately(expected, delta{0});")]
938+
[AssertionCodeFix(
939+
oldAssertion: "Assert.AreEqual(actual, 4.2d, delta{0});",
940+
newAssertion: "actual.Should().BeApproximately(4.2d, delta{0});")]
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[Implemented]
937942
public void Nunit3_AssertEqualDouble_TestCodeFix(string oldAssertion, string newAssertion)
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=> Nunit3VerifyFix("double expected, double actual, double delta", oldAssertion, newAssertion);
@@ -941,18 +946,23 @@ public void Nunit3_AssertEqualDouble_TestCodeFix(string oldAssertion, string new
941946
[AssertionCodeFix(
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oldAssertion: "ClassicAssert.AreEqual(expected, actual, delta{0});",
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newAssertion: "actual.Should().BeApproximately(expected, delta{0});")]
949+
[AssertionCodeFix(
950+
oldAssertion: "ClassicAssert.AreEqual(actual, 4.2d, delta{0});",
951+
newAssertion: "actual.Should().BeApproximately(4.2d, delta{0});")]
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[Implemented]
945953
public void Nunit4_AssertEqualDouble_TestCodeFix(string oldAssertion, string newAssertion)
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=> Nunit4VerifyFix("double expected, double actual, double delta", oldAssertion, newAssertion);
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[DataTestMethod]
949957
[AssertionDiagnostic("Assert.AreEqual(expected, actual{0});")]
958+
[AssertionDiagnostic("Assert.AreEqual(actual, \"foo\"{0});")]
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[Implemented]
951960
public void Nunit3_AssertEqualObject_TestAnalyzer(string assertion)
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=> Nunit3VerifyDiagnostic("object expected, object actual", assertion);
953962

954963
[DataTestMethod]
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[AssertionDiagnostic("ClassicAssert.AreEqual(expected, actual{0});")]
965+
[AssertionDiagnostic("ClassicAssert.AreEqual(actual, \"foo\"{0});")]
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[Implemented]
957967
public void Nunit4_AssertEqualObject_TestAnalyzer(string assertion)
958968
=> Nunit4VerifyDiagnostic("object expected, object actual", assertion);
@@ -961,6 +971,9 @@ public void Nunit4_AssertEqualObject_TestAnalyzer(string assertion)
961971
[AssertionCodeFix(
962972
oldAssertion: "Assert.AreEqual(expected, actual{0});",
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newAssertion: "actual.Should().Be(expected{0});")]
974+
[AssertionCodeFix(
975+
oldAssertion: "Assert.AreEqual(actual, \"foo\"{0});",
976+
newAssertion: "actual.Should().Be(\"foo\"{0});")]
964977
[Implemented]
965978
public void Nunit3_AssertEqualObject_TestCodeFix(string oldAssertion, string newAssertion)
966979
=> Nunit3VerifyFix("object expected, object actual", oldAssertion, newAssertion);
@@ -969,18 +982,23 @@ public void Nunit3_AssertEqualObject_TestCodeFix(string oldAssertion, string new
969982
[AssertionCodeFix(
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oldAssertion: "ClassicAssert.AreEqual(expected, actual{0});",
971984
newAssertion: "actual.Should().Be(expected{0});")]
985+
[AssertionCodeFix(
986+
oldAssertion: "ClassicAssert.AreEqual(actual, \"foo\"{0});",
987+
newAssertion: "actual.Should().Be(\"foo\"{0});")]
972988
[Implemented]
973989
public void Nunit4_AssertEqualObject_TestCodeFix(string oldAssertion, string newAssertion)
974990
=> Nunit4VerifyFix("object expected, object actual", oldAssertion, newAssertion);
975991

976992
[DataTestMethod]
977993
[AssertionDiagnostic("Assert.AreNotEqual(expected, actual{0});")]
994+
[AssertionDiagnostic("Assert.AreNotEqual(actual, \"foo\"{0});")]
978995
[Implemented]
979996
public void Nunit3_AssertNotEqualObject_TestAnalyzer(string assertion)
980997
=> Nunit3VerifyDiagnostic("object expected, object actual", assertion);
981998

982999
[DataTestMethod]
9831000
[AssertionDiagnostic("ClassicAssert.AreNotEqual(expected, actual{0});")]
1001+
[AssertionDiagnostic("ClassicAssert.AreNotEqual(actual, \"foo\"{0});")]
9841002
[Implemented]
9851003
public void Nunit4_AssertNotEqualObject_TestAnalyzer(string assertion)
9861004
=> Nunit4VerifyDiagnostic("object expected, object actual", assertion);
@@ -989,6 +1007,9 @@ public void Nunit4_AssertNotEqualObject_TestAnalyzer(string assertion)
9891007
[AssertionCodeFix(
9901008
oldAssertion: "Assert.AreNotEqual(expected, actual{0});",
9911009
newAssertion: "actual.Should().NotBe(expected{0});")]
1010+
[AssertionCodeFix(
1011+
oldAssertion: "Assert.AreNotEqual(actual, \"foo\"{0});",
1012+
newAssertion: "actual.Should().NotBe(\"foo\"{0});")]
9921013
[Implemented]
9931014
public void Nunit3_AssertNotEqualObject_TestCodeFix(string oldAssertion, string newAssertion)
9941015
=> Nunit3VerifyFix("object expected, object actual", oldAssertion, newAssertion);
@@ -997,6 +1018,9 @@ public void Nunit3_AssertNotEqualObject_TestCodeFix(string oldAssertion, string
9971018
[AssertionCodeFix(
9981019
oldAssertion: "ClassicAssert.AreNotEqual(expected, actual{0});",
9991020
newAssertion: "actual.Should().NotBe(expected{0});")]
1021+
[AssertionCodeFix(
1022+
oldAssertion: "ClassicAssert.AreNotEqual(actual, \"foo\"{0});",
1023+
newAssertion: "actual.Should().NotBe(\"foo\"{0});")]
10001024
[Implemented]
10011025
public void Nunit4_AssertNotEqualObject_TestCodeFix(string oldAssertion, string newAssertion)
10021026
=> Nunit4VerifyFix("object expected, object actual", oldAssertion, newAssertion);

‎src/FluentAssertions.Analyzers/Tips/NunitCodeFixProvider.cs

Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -116,6 +116,8 @@ public static void ByVal(object? actual, IResolveConstraint expression)
116116
public static void ByVal(object? actual, IResolveConstraint expression, string? message, params object?[]? args)
117117
*/
118118

119+
var actualSubjectIndex = invocation.Arguments.Length is 1 ? 0
120+
: invocation.Arguments[1].IsLiteralValue() ? 0 : 1;
119121
switch (invocation.TargetMethod.Name)
120122
{
121123
case "True": // Assert.True(bool condition)
@@ -212,13 +214,13 @@ public static void ByVal(object? actual, IResolveConstraint expression, string?
212214
return DocumentEditorUtils.RenameMethodToSubjectShouldAssertion(invocation, context, "BeLessOrEqualTo", subjectIndex: 0, argumentsToRemove: []);
213215
case "AreEqual" when ArgumentsAreTypeOf(invocation, t.Double, t.Double, t.Double): // Assert.AreEqual(double expected, double actual, double delta)
214216
case "AreEqual" when ArgumentsAreTypeOf(invocation, t.Double, t.Double, t.Double, t.String, t.ObjectArray): // Assert.AreEqual(double expected, double actual, double delta, string message, params object[] parms)
215-
return DocumentEditorUtils.RenameMethodToSubjectShouldAssertion(invocation, context, "BeApproximately", subjectIndex: 1, argumentsToRemove: []);
217+
return DocumentEditorUtils.RenameMethodToSubjectShouldAssertion(invocation, context, "BeApproximately", actualSubjectIndex, argumentsToRemove: []);
216218
case "AreEqual" when ArgumentsAreTypeOf(invocation, t.Object, t.Object): // Assert.AreEqual(object expected, object actual)
217219
case "AreEqual" when ArgumentsAreTypeOf(invocation, t.Object, t.Object, t.String, t.ObjectArray): // Assert.AreEqual(object expected, object actual, string message, params object[] parms)
218-
return DocumentEditorUtils.RenameMethodToSubjectShouldAssertion(invocation, context, "Be", subjectIndex: 1, argumentsToRemove: []);
220+
return DocumentEditorUtils.RenameMethodToSubjectShouldAssertion(invocation, context, "Be", actualSubjectIndex, argumentsToRemove: []);
219221
case "AreNotEqual" when ArgumentsAreTypeOf(invocation, t.Object, t.Object): // Assert.AreNotEqual(object expected, object actual)
220222
case "AreNotEqual" when ArgumentsAreTypeOf(invocation, t.Object, t.Object, t.String, t.ObjectArray): // Assert.AreNotEqual(object expected, object actual, string message, params object[] parms)
221-
return DocumentEditorUtils.RenameMethodToSubjectShouldAssertion(invocation, context, "NotBe", subjectIndex: 1, argumentsToRemove: []);
223+
return DocumentEditorUtils.RenameMethodToSubjectShouldAssertion(invocation, context, "NotBe", actualSubjectIndex, argumentsToRemove: []);
222224
case "AreSame": // Assert.AreSame(object expected, object actual)
223225
return DocumentEditorUtils.RenameMethodToSubjectShouldAssertion(invocation, context, "BeSameAs", subjectIndex: 1, argumentsToRemove: []);
224226
case "AreNotSame": // Assert.AreNotSame(object expected, object actual)

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