public static void InsertEventFix()
{
var before = @"
namespace N
{
using System;
↓class C
{
}
}";
var after = @"
namespace N
{
using System;
class C
{
public event EventHandler E;
}
}";
var analyzer = new ClassMustHaveEventAnalyzer();
var fix = new InsertEventFix();
RoslynAssert.CodeFix(analyzer, fix, before, after);
RoslynAssert.CodeFix(analyzer, fix, new[] { before }, after);
RoslynAssert.CodeFix(analyzer, fix, new[] { before }, new[] { after });
}
public static void WhenFixIntroducesCompilerErrorsThatAreAccepted()
{
var before = @"
namespace N
{
↓class Value
{
}
}";
var after = @"
namespace N
{
class Value
{
public event EventHandler E;
}
}";
var analyzer = new ClassMustHaveEventAnalyzer();
var fix = new InsertEventFix();
var expectedDiagnostic = ExpectedDiagnostic.Create(ClassMustHaveEventAnalyzer.DiagnosticId);
RoslynAssert.CodeFix(analyzer, fix, before, after, allowCompilationErrors: AllowCompilationErrors.Yes);
RoslynAssert.CodeFix(analyzer, fix, new[] { before }, after, allowCompilationErrors: AllowCompilationErrors.Yes);
RoslynAssert.CodeFix(analyzer, fix, new[] { before }, new[] { after }, allowCompilationErrors: AllowCompilationErrors.Yes);
RoslynAssert.CodeFix(analyzer, fix, expectedDiagnostic, before, after, allowCompilationErrors: AllowCompilationErrors.Yes);
RoslynAssert.CodeFix(analyzer, fix, expectedDiagnostic, new[] { before }, after, allowCompilationErrors: AllowCompilationErrors.Yes);
RoslynAssert.CodeFix(analyzer, fix, expectedDiagnostic, new[] { before }, new[] { after }, allowCompilationErrors: AllowCompilationErrors.Yes);
}
public static void WhenFixIntroducesCompilerErrors()
{
var before = @"
namespace N
{
↓class C
{
}
}";
var after = @"
namespace N
{
class C
{
public event EventHandler E;
}
}";
var analyzer = new ClassMustHaveEventAnalyzer();
var fix = new InsertEventFix();
var exception = Assert.Throws <AssertException>(() => RoslynAssert.FixAll(analyzer, fix, before, after, metadataReferences: Enumerable.Empty <MetadataReference>()));
var expected = "InsertEventFix introduced syntax errors.\r\n" +
"CS0518 Predefined type 'System.Object' is not defined or imported\r\n" +
" at line 3 and character 10 in file C.cs | class ↓C\r\n" +
"CS0518 Predefined type 'System.Object' is not defined or imported\r\n" +
" at line 5 and character 21 in file C.cs | public event ↓EventHandler E;\r\n" +
"CS0246 The type or namespace name 'EventHandler' could not be found (are you missing a using directive or an assembly reference?)\r\n" +
" at line 5 and character 21 in file C.cs | public event ↓EventHandler E;\r\n" +
"CS0518 Predefined type 'System.Void' is not defined or imported\r\n" +
" at line 5 and character 34 in file C.cs | public event EventHandler ↓E;\r\n" +
"CS0518 Predefined type 'System.Void' is not defined or imported\r\n" +
" at line 5 and character 34 in file C.cs | public event EventHandler ↓E;\r\n" +
"CS1729 'object' does not contain a constructor that takes 0 arguments\r\n" +
" at line 3 and character 10 in file C.cs | class ↓C\r\n" +
"First source file with error is:\r\n\r\n" +
"namespace N\r\n" +
"{\r\n" +
" class C\r\n" +
" {\r\n" +
" public event EventHandler E;\r\n" +
" }\r\n" +
"}\r\n";
CodeAssert.AreEqual(expected, exception.Message);
}
public static void WhenFixIntroducesSyntaxErrors()
{
var before = @"
namespace N
{
↓class C
{
}
}";
var after = @"
namespace N
{
class C
{
public event EventHandler E;
}
}";
var analyzer = new ClassMustHaveEventAnalyzer();
var fix = new InsertEventFix();
var exception = Assert.Throws <AssertException>(() => RoslynAssert.CodeFix(analyzer, fix, before, after));
var expected = @"InsertEventFix introduced syntax error.
CS0246 The type or namespace name 'EventHandler' could not be found (are you missing a using directive or an assembly reference?)
at line 5 and character 21 in file C.cs | public event ↓EventHandler E;
First source file with error is:
namespace N
{
class C
{
public event EventHandler E;
}
}
";
CodeAssert.AreEqual(expected, exception.Message);
}
public static void WhenFixIntroducesCompilerErrorsThatAreAccepted()
{
var before = @"
namespace N
{
↓class Value
{
}
}";
var after = @"
namespace N
{
class Value
{
public event EventHandler E;
}
}";
var analyzer = new ClassMustHaveEventAnalyzer();
var fix = new InsertEventFix();
RoslynAssert.FixAll(analyzer, fix, before, after, allowCompilationErrors: AllowCompilationErrors.Yes);
}
