Java, C#: Fix unit tests

Author: agdavydov81

csharp/EPAM.Deltix.DFP.Test/Decimal64Test.cs

@@ -1272,8 +1272,8 @@ public void Issue91ToFloatString()
 		[Test]
 		public void TestShortenMantissaBigDelta()
 		{
-			Assert.AreEqual(Decimal64.Parse("9000000000000000"),
-				Decimal64.Parse("9999000000000000").ShortenMantissa(DotNetImpl.MaxCoefficient / 2, 2));
+			Assert.AreEqual(Decimal64.Parse("10000000000000000"),
+				Decimal64.Parse("9999000000000000").ShortenMantissa(DotNetImpl.MaxCoefficient / 10, 2));
 		}
 
 		[Test]

java/dfp/src/test/java/com/epam/deltix/dfp/FromDoubleTest.java

@@ -251,8 +251,8 @@ public void testShortenMantissaDenormalized() {
 
     @Test
     public void testShortenMantissaBigDelta() {
-        Assert.assertEquals(Decimal64.parse("9000000000000000"),
-            Decimal64.parse("9999000000000000").shortenMantissa(JavaImpl.MAX_COEFFICIENT / 2, 2));
+        Assert.assertEquals(Decimal64.parse("10000000000000000"),
+            Decimal64.parse("9999000000000000").shortenMantissa(JavaImpl.MAX_COEFFICIENT / 10, 2));
     }
 
     @Test