Fix mistakes in highest-representable float64 integers
diff --git a/csharp/src/Google.Protobuf.Test/JsonParserTest.cs b/csharp/src/Google.Protobuf.Test/JsonParserTest.cs
index c4f6dfb..d21da58 100644
--- a/csharp/src/Google.Protobuf.Test/JsonParserTest.cs
+++ b/csharp/src/Google.Protobuf.Test/JsonParserTest.cs
@@ -477,7 +477,7 @@
[TestCase("-1", -1L)]
// long.MaxValue isn't actually representable as a double. This string value is the highest
// representable value which isn't greater than long.MaxValue.
- [TestCase("9223372036854769664", 9223372036854769664)]
+ [TestCase("9223372036854774784", 9223372036854774784)]
[TestCase("-9223372036854775808", -9223372036854775808)]
public void NumberToInt64_Valid(string jsonValue, long expectedParsedValue)
{
@@ -504,7 +504,7 @@
[TestCase("1", 1UL)]
// ulong.MaxValue isn't representable as a double. This value is the largest double within
// the range of ulong.
- [TestCase("18446744073709500416", 18446744073709500416UL)]
+ [TestCase("18446744073709549568", 18446744073709549568UL)]
public void NumberToUInt64_Valid(string jsonValue, ulong expectedParsedValue)
{
string json = "{ \"singleUint64\": " + jsonValue + "}";