Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/tests/test-async-86.cs

@@ -0,0 +1,71 @@
+using System;
+using System.Threading.Tasks;
+
+public class Program
+{
+	string Data { 
+		get {
+			return data;
+		}
+		set {
+			++setter_called;
+			data = value;
+		}
+	}
+
+	int setter_called;
+	string data = "init-";
+
+	string this [string arg] {
+		get {
+			return i_data;
+		}
+		set {
+			++i_setter_called;
+			i_data = value;
+		}
+	}
+
+	int i_setter_called;
+	string i_data = "init2-";
+
+	public static int Main()
+	{
+		var p = new Program ();
+		p.TestProperty ().Wait ();
+		if (p.data != "init-nxa123z") {
+			return 1;
+		}
+
+		if (p.setter_called != 1)
+			return 2;
+
+		p.TestIndexer ().Wait ();
+
+		if (p.i_data != "init2-nxa123z") {
+			return 3;
+		}
+
+		if (p.i_setter_called != 1)
+			return 4;
+
+		return 0;
+	}
+
+	async Task TestProperty ()
+	{
+		Data += "n" + await StringValue () + "a" + 123.ToString () + "z";
+	}
+
+	async Task TestIndexer ()
+	{
+		string arg = "foo";
+		this[arg] += "n" + await StringValue () + "a" + 123.ToString () + "z";
+	}
+
+	async Task<string> StringValue ()
+	{
+		await Task.Yield ();
+		return "x";
+	}
+}