From e717c00cfecbed88ef87d2cc18cec633f3a2c01e Mon Sep 17 00:00:00 2001
From: jespitae <jens.spitaels@telenet.be>
Date: Fri, 21 Jun 2024 11:47:18 +0200
Subject: [PATCH] feat!: expand format for integer types for C# (#2054)

---
 src/generators/csharp/CSharpConstrainer.ts       |  9 +++++++--
 test/generators/csharp/CSharpConstrainer.spec.ts | 15 ++++++++++++++-
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/src/generators/csharp/CSharpConstrainer.ts b/src/generators/csharp/CSharpConstrainer.ts
index 8b880be84d..15dcb6e459 100644
--- a/src/generators/csharp/CSharpConstrainer.ts
+++ b/src/generators/csharp/CSharpConstrainer.ts
@@ -51,8 +51,13 @@ export const CSharpDefaultTypeMapping: CSharpTypeMapping = {
   Float({ partOfProperty }): string {
     return getFullTypeDefinition('double', partOfProperty);
   },
-  Integer({ partOfProperty }): string {
-    return getFullTypeDefinition('int', partOfProperty);
+  Integer({ constrainedModel, partOfProperty }): string {
+    switch (constrainedModel.options.format) {
+      case 'int64':
+        return getFullTypeDefinition('long', partOfProperty);
+      default:
+        return getFullTypeDefinition('int', partOfProperty);
+    }
   },
   String({ constrainedModel, partOfProperty }): string {
     switch (constrainedModel.options.format) {
diff --git a/test/generators/csharp/CSharpConstrainer.spec.ts b/test/generators/csharp/CSharpConstrainer.spec.ts
index 69c55382db..d3b0368e06 100644
--- a/test/generators/csharp/CSharpConstrainer.spec.ts
+++ b/test/generators/csharp/CSharpConstrainer.spec.ts
@@ -75,7 +75,7 @@ describe('CSharpConstrainer', () => {
     });
   });
   describe('Integer', () => {
-    test('should render type', () => {
+    test('should render int', () => {
       const model = new ConstrainedIntegerModel('test', undefined, {}, '');
       const type = CSharpDefaultTypeMapping.Integer({
         constrainedModel: model,
@@ -83,6 +83,19 @@ describe('CSharpConstrainer', () => {
       });
       expect(type).toEqual('int');
     });
+    test('should render long', () => {
+      const model = new ConstrainedStringModel(
+        'test',
+        undefined,
+        { format: 'int64' },
+        ''
+      );
+      const type = CSharpDefaultTypeMapping.Integer({
+        constrainedModel: model,
+        ...defaultOptions
+      });
+      expect(type).toEqual('long');
+    });
   });
   describe('String', () => {
     test('should render type', () => {