Introduce ForInStmtTests

Author: stevapple

Tests/SwiftSyntaxBuilderTest/ForInStmtTests.swift

@@ -0,0 +1,49 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+//
+//===----------------------------------------------------------------------===//
+
+import XCTest
+import SwiftSyntax
+import SwiftSyntaxBuilder
+
+final class ForInStmtTests: XCTestCase {
+  func testForInStmtSyntax() throws {
+    let testCases: [UInt: (ForInStmtSyntax, String)] = [
+      #line: (
+        StmtSyntax(
+          """
+          for foo in bar {
+            _ = foo
+          }
+          """
+        ).cast(ForInStmtSyntax.self),
+        """
+        for foo in bar {
+            _ = foo
+        }
+        """
+      ),
+      #line: (
+        try ForInStmtSyntax("for try await foo in bar") { ExprSyntax("print(foo)") },
+        """
+        for try await foo in bar {
+            print(foo)
+        }
+        """
+      ),
+    ]
+
+    for (line, testCase) in testCases {
+      let (builder, expected) = testCase
+      assertBuildResult(builder, expected, line: line)
+    }
+  }
+}