Append newline to printed documents (#391)

src/GraphQLParser.Tests/Visitors/SDLPrinterFromManualASTTests.cs

@@ -148,6 +148,7 @@ directive @null_locations on
             directive @empty_locations on
 
             scalar AAA
+
             """);
     }
 
@@ -186,6 +187,7 @@ enum EnumWithValuesDefinitionOfNullItems {
 
             enum EnumWithValuesDefinitionOfEmptyItems {
             }
+
             """);
     }
 
@@ -224,6 +226,7 @@ input InputWithFieldsDefinitionOfNullItems {
 
             input InputWithFieldsDefinitionOfEmptyItems {
             }
+
             """);
     }
 
@@ -262,6 +265,7 @@ type TypeWithFieldsDefinitionOfNullItems {
 
             type TypeWithFieldsDefinitionOfEmptyItems {
             }
+
             """);
     }
 }

src/GraphQLParser.Tests/Visitors/SDLPrinterFromParsedTextTests.cs

@@ -946,7 +946,7 @@ public async Task SDLPrinter_Should_Print_Document(
 
         await printer.PrintAsync(document, writer);
         var actual = writer.ToString();
-        actual.ShouldBe(expected, $"Test {number} failed");
+        actual.ShouldBe(expected + Environment.NewLine, $"Test {number} failed");
 
         actual.Parse(); // should be parsed back
     }
@@ -1006,7 +1006,7 @@ public async Task SDLPrinter_Should_Print_BlockStrings(int number, string input,
         var renderedOriginal = writer.ToString();
 
         var lines = renderedOriginal.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
-        var renderedDescription = string.Join(Environment.NewLine, lines.Take(lines.Length - 1));
+        var renderedDescription = string.Join(Environment.NewLine, lines.Take(lines.Length - 2));
         renderedDescription = renderedDescription.Replace("\r\n", "\n");
         renderedDescription.ShouldBe(expected);
 
@@ -1025,9 +1025,12 @@ public async Task SDLPrinter_Should_Print_BlockStrings(int number, string input,
     public async Task SDLPrinter_Should_Print_EscapedStrings(string stringValue)
     {
         string query = $"{{a(p:{stringValue})}}";
-        string expected = @$"{{
-  a(p: {stringValue})
-}}";
+        string expected = $$"""
+            {
+              a(p: {{stringValue}})
+            }
+
+            """;
         using var writer = new StringWriter();
 
         var document = query.Parse();
@@ -1061,11 +1064,11 @@ public void UTF8_MemoryStream_Runs_Synchronously()
     }
 
     [Theory]
-    [InlineData("{ field1 }", "{\n  field1\n}")]
-    [InlineData("query { field1 }", "{\n  field1\n}")]
-    [InlineData("query q1 { field1 }", "query q1 {\n  field1\n}")]
-    [InlineData("mutation { field1 }", "mutation {\n  field1\n}")]
-    [InlineData("mutation m1 { field1 }", "mutation m1 {\n  field1\n}")]
+    [InlineData("{ field1 }", "{\n  field1\n}\n")]
+    [InlineData("query { field1 }", "{\n  field1\n}\n")]
+    [InlineData("query q1 { field1 }", "query q1 {\n  field1\n}\n")]
+    [InlineData("mutation { field1 }", "mutation {\n  field1\n}\n")]
+    [InlineData("mutation m1 { field1 }", "mutation m1 {\n  field1\n}\n")]
     public void OperationPrints(string input, string expected)
     {
         new SDLPrinter().Print(Parser.Parse(input)).ShouldBe(expected, StringCompareShould.IgnoreLineEndings);

src/GraphQLParser.Tests/Visitors/SDLPrinterSkipDirectivesTests.cs

@@ -14,7 +14,8 @@ public class SDLPrinterSkipDirectivesTests
 @"type Foo {
   f: Int @aliased
   k: Boolean
-}")]
+}
+")]
     [InlineData(2,
 @"type Foo {
   f: Int @bad @aliased
@@ -24,7 +25,8 @@ public class SDLPrinterSkipDirectivesTests
 @"type Foo {
   f: Int @aliased
   k: Boolean
-}")]
+}
+")]
     [InlineData(3,
 @"type Foo {
   f: Int @aliased @bad
@@ -34,7 +36,8 @@ public class SDLPrinterSkipDirectivesTests
 @"type Foo {
   f: Int @aliased
   k: Boolean
-}")]
+}
+")]
     [InlineData(4,
 @"type Foo {
   f: Int @bad
@@ -44,11 +47,12 @@ public class SDLPrinterSkipDirectivesTests
 @"type Foo {
   f: Int
   k: Boolean
-}")]
+}
+")]
     public async Task Printer_Should_Print_Pretty_If_Directives_Skipped(
-int number,
-string text,
-string expected)
+        int number,
+        string text,
+        string expected)
     {
         var printer = new MyPrinter();
         using var writer = new StringWriter();

src/GraphQLParser.Tests/Visitors/SDLPrinterVerticalIndentationTests.cs

@@ -19,7 +19,8 @@ scalar A
   query: Q
 }
 
-extend schema @bad")]
+extend schema @bad
+")]
     [InlineData(2,
 @"scalar A1
 scalar B
@@ -28,7 +29,8 @@ scalar A2
 ",
 @"scalar A1
 
-scalar A2")]
+scalar A2
+")]
     [InlineData(3,
 @"scalar A1
 scalar B
@@ -38,7 +40,8 @@ scalar D
 ",
 @"scalar A1
 
-scalar A2")]
+scalar A2
+")]
     [InlineData(4,
 @"query A1 { x }
 query B { y }
@@ -50,15 +53,17 @@ query A2 { z }
 
 query A2 {
   z
-}")]
+}
+")]
     [InlineData(5,
 @"directive @A1 on FIELD
 directive @B on FIELD
 directive @A2 on FIELD
 ",
 @"directive @A1 on FIELD
 
-directive @A2 on FIELD")]
+directive @A2 on FIELD
+")]
     [InlineData(6,
 @"enum A1 { X Y }
 enum B { X Y }
@@ -74,7 +79,8 @@ enum D { X Y }
 enum A2 {
   X
   Y
-}")]
+}
+")]
     [InlineData(7,
 @"extend enum A1 { X Y }
 extend enum B { X Y }
@@ -90,7 +96,8 @@ extend enum D { X Y }
 extend enum A2 {
   X
   Y
-}")]
+}
+")]
     [InlineData(8,
 @"input A1 @vip
 input B
@@ -102,7 +109,8 @@ input D
 
 input A2 {
   a: Int
-}")]
+}
+")]
     [InlineData(9,
 @"type A1 @vip
 type B
@@ -114,7 +122,8 @@ type D
 
 type A2 {
   a: Int
-}")]
+}
+")]
     [InlineData(10,
 @"interface A1 @vip
 interface B
@@ -126,7 +135,8 @@ interface D
 
 interface A2 {
   a: Int
-}")]
+}
+")]
     [InlineData(11,
 @"extend interface A1 @vip
 extend interface B { a: Int }
@@ -138,7 +148,8 @@ interface A2 {
 
 extend interface A2 {
   a: Int
-}")]
+}
+")]
     [InlineData(12,
 @"union A1 @vip
 union B = X | Y
@@ -148,7 +159,8 @@ extend interface A2 {
 ",
 @"union A1 @vip
 
-union A2 = X | Y")]
+union A2 = X | Y
+")]
     [InlineData(13,
 @"extend input A1 { a: Int }
 extend input B { a: Int }
@@ -162,7 +174,8 @@ extend interface A2 {
 
 extend input A2 {
   a: Int
-}")]
+}
+")]
     [InlineData(14,
 @"extend type A1 { a: Int }
 extend type B { a: Int }
@@ -176,11 +189,12 @@ extend input A2 {
 
 extend type A2 {
   a: Int
-}")]
+}
+")]
     public async Task Printer_Should_Print_Pretty_If_Definitions_Skipped(
-int number,
-string text,
-string expected)
+        int number,
+        string text,
+        string expected)
     {
         var printer = new PrintOnlyStartsWithA();
         using var writer = new StringWriter();

src/GraphQLParser.Tests/Visitors/SDLSorterTests.SortsSchemaDefinition.approved.DefinitionSortTests.graphql

@@ -27,4 +27,4 @@ input Type2 {
   f3: ID!
 }
 
-scalar Type3
+scalar Type3

src/GraphQLParser.Tests/Visitors/SDLSorterTests.SortsSchemaDefinition.approved.ExecutableSortTests.graphql

@@ -65,4 +65,4 @@ fragment frag3 on Type3 {
   dummy1
   dummy2
   dummy3
-}
+}

src/GraphQLParser.Tests/Visitors/SDLSorterTests.SortsSchemaDefinition.approved.KitchenSink.graphql

@@ -139,4 +139,4 @@ extend type Foo {
   seven(argument: [String]): Type
 }
 
-extend type Foo @onType
+extend type Foo @onType

src/GraphQLParser/Visitors/SDLPrinter.cs

@@ -1158,13 +1158,15 @@ public SDLPrinter(SDLPrinterOptions options)
     }
 
     /// <inheritdoc cref="SDLPrinter{TContext}"/>
-    public virtual ValueTask PrintAsync(ASTNode node, TextWriter writer, CancellationToken cancellationToken = default)
+    public virtual async ValueTask PrintAsync(ASTNode node, TextWriter writer, CancellationToken cancellationToken = default)
     {
         var context = new DefaultPrintContext(writer)
         {
             CancellationToken = cancellationToken,
         };
-        return VisitAsync(node, context);
+        await VisitAsync(node, context).ConfigureAwait(false);
+        if (!context.NewLinePrinted && node is GraphQLDocument)
+            await writer.WriteLineAsync().ConfigureAwait(false);
     }
 }