Do a rough conversion from nunit to xunit + fluentassertions

convert-toxunit.ps1

$testFolder = "C:\dev\Calamari\source\Calamari.Tests"

Function Convert-ToXunit {
    Param(
        [System.IO.FileInfo]$file   
    )

    $result = (Get-Content $file.FullName -Raw) `
        -replace 'using NUnit.Framework;', 'using Xunit;' `
        -replace '\[Test\]', '[Fact]' `
        -replace '\[TestFixture\]', '' `
        -replace '\[TestCase', '[InlineData' `
        -replace '\[Category\(', '[Trait("Category",' `
        -replace 'Assert.AreEqual\((.*), (.*)\)', '$2.Should().Be($1)' `
        -replace 'Assert.AreNotEqual\((.*), (.*)\)', '$2.Should().NotBe($1)' `
        -replace 'Assert.That\((.*), Is.EqualTo\((.*)\)\)', '$1.Should().Be($2)' `
        -replace 'Assert.That\((.*), Is.Null\)', '$1.Should().BeNull()' `
        -replace 'Assert.That\((.*), Is.Not.Null\)', '$1.Should().NotBeNull()' `
        -replace 'Assert.That\((.*), Is.Not.Empty\)', '$1.Should().NotBeEmpty()' `
        -replace 'Assert.That\((.*), Is.True\)', '$1.Should().BeTrue()' `
        -replace 'Assert.That\((.*), Is.False\)', '$1.Should().BeFalse()' `
        -replace 'Assert.IsNull\((.*)\)', '$1.Should().BeNull()' `
        -replace 'Assert.IsNotNull\((.*)\)', '$1.Should().NotBeNull()' `
        -replace 'Assert.IsTrue\((.*)\)', '$1.Should().BeTrue()' `
        -replace 'Assert.IsFalse\((.*)\)', '$1.Should().BeFalse()' `
        -replace 'Assert.That\((.*), Does.Contain\((.*)\)\)', '$1.Should().Contain($2)' `
        -replace 'Assert.That\((.*), Does.Not.Contain\((.*)\)\)', '$1.Should().NotContain($2)' `
        -replace 'Assert.That\((.*), Does.Match\((.*)\)\)', '$1.Should().MatchRegex($2)' `
        -replace 'Assert.That\((.*), Does.Not.Match\((.*)\)\)', '$1.Should().NotMatchRegex($2)' `
        -replace 'Assert.That\((.*), Is.LessThan\((.*)\)\)', '$1.Should().BeLessThan($2)' `
        -replace 'Assert.That\((.*), Is.GreaterThan\((.*)\)\)', '$1.Should().BeGreaterThan($2)' 

    [System.IO.File]::WriteAllLines($file.FullName, $result) 
}

Get-ChildItem $testFolder -Recurse -Include *.cs -File | % { Convert-ToXunit -file $_ }