Improve test coverage

Author: iamcarbon

src/D.Compiler.Tests/CSharp/CSharpRewriterTests.cs

@@ -166,7 +166,7 @@ public void IfElseIfElse()
             {
                 return 5;
             }
-            """.Replace("\r\n", "\n"),
+            """.ReplaceLineEndings("\n"),
 
         Rewrite(
             """

src/D.Compiler.Tests/CSharp/ImplementationTests.cs

@@ -70,7 +70,7 @@ public Bezier(Vector3 c1, Vector3 c2, Vector3 c3, Vector3 c4)
 
                 private object B4(double t) => (1 - t) * (1 - t) * (1 - t);
             }
-            """.Replace("\r\n", "\n"), r);
+            """.ReplaceLineEndings("\n"), r);
     }
 
     [Fact]
@@ -120,7 +120,7 @@ public static string A(Point<T> point)
                 var y = point.Y;
                 var z = point.Z;
             }
-            """.Replace("\r\n", "\n"),
+            """.ReplaceLineEndings("\n"),
 
         Transpile(
             """
@@ -144,7 +144,7 @@ public void X()
             public static object SinIn(double x) => Math.Sin(x * Math.PI * 0.5);
 
             public static object SinOut(double x) => -Math.Cos(Math.PI * x) / 2 + 0.5;
-            """.Replace("\r\n", "\n"),
+            """.ReplaceLineEndings("\n"),
 
         Transpile(
             """

src/D.Scripting.Tests/Evaluator/EvaulatorTests.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Linq;
+using System.Linq;
 
 using Carbon.Color;
 
@@ -181,20 +180,18 @@ public static object Evaluate(IExpression statement)
     {
         return new Evaluator().Evaluate(statement);
     }
-
 
     [Fact]
     public void Eval2()
     {
         var env = new Node(
            new ArithmeticModule()
-       );
+        );
 
         var result = new Evaluator(env).Evaluate("1kg * 1lb");
 
         Assert.Equal("0.453592kg²", result.ToString());
-    }
-    
+    }    
 
     [Theory]
     [InlineData("2kg * 3",                  "6kg")]

src/D.Tests/Parser/AssignmentTests.cs

@@ -58,13 +58,32 @@ public void AssignmentPattern()
     }
 
     [Fact]
-    public void Read2()
+    public void CanReadTwoAssignments()
     {
         var parser = new Parser(
             """
             image = 10
             b = 2
-            """.ReplaceLineEndings(Environment.NewLine));
+            """);
+
+        var one = (BinaryExpressionSyntax)parser.Next();
+        var two = (BinaryExpressionSyntax)parser.Next();
+
+        Assert.Equal("image", one.Left.ToString());
+        Assert.Equal("10", one.Right.ToString());
+
+        Assert.Equal("b", two.Left.ToString());
+        Assert.Equal("2", two.Right.ToString());
+    }
+
+    [Fact]
+    public void CanReadTwoAssignments2()
+    {
+        var parser = new Parser(
+            """
+            image = 10
+            b = 2
+            """.ReplaceLineEndings("\n"));
 
         var one = (BinaryExpressionSyntax)parser.Next();
         var two = (BinaryExpressionSyntax)parser.Next();

src/D.Tests/TestBase.cs

@@ -12,9 +12,11 @@ public static T Parse<T>(string text)
     private static readonly string RootDirectory = new DirectoryInfo(AppContext.BaseDirectory).Parent.Parent.Parent.Parent.Parent.FullName;
 
     public FileInfo GetDocument(string name) => new FileInfo(Path.Combine(RootDirectory, "modules", name));
-    
+
     public IEnumerable<FileInfo> ReadDocuments(string path)
-        => new DirectoryInfo(Path.Combine(RootDirectory, "modules", path)).EnumerateFiles();
+    { 
+        return new DirectoryInfo(Path.Combine(RootDirectory, "modules", path)).EnumerateFiles();
+    }
 
     public string ReadDocument(string name) => GetDocument(name).OpenText().ReadToEnd();
 }