2010-03-05 Rodrigo Kumpera <rkumpera@novell.com>

	* BigIntegerTest.cs: Tests for Sub.

svn path=/trunk/mcs/; revision=153147

diff --git a/mcs/class/System.Numerics/Test/System.Numerics/BigIntegerTest.cs b/mcs/class/System.Numerics/Test/System.Numerics/BigIntegerTest.cs
index 87b178dc3820d5fac8fed8f3fba23d17e08d2fd8..2c367ab1e259a4f6a7d060ac1c0a85ba4a66ba1f 100644 (file)
--- a/mcs/class/System.Numerics/Test/System.Numerics/BigIntegerTest.cs
+++ b/mcs/class/System.Numerics/Test/System.Numerics/BigIntegerTest.cs
@@ -22,6 +22,8 @@ namespace MonoTests.System.Numerics
 
                static byte[] huge_add = new byte[] {0xB3, 0x38, 0xD5, 0xFD, 0x45, 0x1A, 0x46, 0xD8, 0xB6, 0xC, 0x2C, 0x9E, 0x9C, 0x61, 0xC4, 0xE0, 0x26, 0xDB, 0xEF, 0x31, 0xC0, 0x67, 0xC3, 0xDD, 0xF0, 0x68, 0x57, 0xBD, 0xEF, 0x79, 0xFF, 0x78, 0x3, 0x35, 0x7, 0x15, 0x95, 0x22, 0x6A, 0x3A, 0x41, 0xCD, 0xD7, 0xD2, 0x91, 0x14, 0x8, 0xB3, 0x65, 0x16, 0xBF, 0x3D, 0x20, 0x95, 0xE6, 0x4C, 0xE1, 0xE0, 0x4B, 0x49, 0xD5, 0x5A, 0xB7, };
 
+               static byte[] a_m_b = new byte[] { 0x87, 0x2D, 0x21, 0x0, 0x1E, 0xEB, 0xC3, 0xB0, 0xDD, 0xAC, 0xCB, 0x43, 0x7E, 0x10, 0x9E, 0xAE, 0x45, 0xF2, 0x55, 0x71, 0x73, 0xD4, 0x7A, 0xEB, 0x88, 0xD3, 0xD4, 0xEE, 0x36, 0xBE, 0x9B, 0x2D, 0xB6, 0xB3, 0x8B, 0x66, 0x60, 0x8B, 0x16, 0x76, 0x17, 0x74, 0xFE, 0xD7, 0xB2, 0x96, 0x7B, 0xBD, 0xE2, 0xC4, 0x2D, 0xDC, 0xDE, 0x6A, 0x19, 0xB3, 0x1E, 0x1F, 0xB4, 0xB6, 0x2A, 0xA5, 0x48, };\r
+               static byte[] b_m_a = new byte[] { 0x79, 0xD2, 0xDE, 0xFF, 0xE1, 0x14, 0x3C, 0x4F, 0x22, 0x53, 0x34, 0xBC, 0x81, 0xEF, 0x61, 0x51, 0xBA, 0xD, 0xAA, 0x8E, 0x8C, 0x2B, 0x85, 0x14, 0x77, 0x2C, 0x2B, 0x11, 0xC9, 0x41, 0x64, 0xD2, 0x49, 0x4C, 0x74, 0x99, 0x9F, 0x74, 0xE9, 0x89, 0xE8, 0x8B, 0x1, 0x28, 0x4D, 0x69, 0x84, 0x42, 0x1D, 0x3B, 0xD2, 0x23, 0x21, 0x95, 0xE6, 0x4C, 0xE1, 0xE0, 0x4B, 0x49, 0xD5, 0x5A, 0xB7, };\r
 
                static byte[][] add_a = new byte[][] {
                        new byte[] {1},
@@ -68,6 +70,29 @@ namespace MonoTests.System.Numerics
                        }
                }
 
+               [Test]
+               public void TestHugeSub () {
+                       var a = new BigInteger (huge_a);
+                       var b = new BigInteger (huge_b);
+                       Assert.AreEqual (a_m_b, (a - b).ToByteArray (), "#1");
+                       Assert.AreEqual (b_m_a, (b - a).ToByteArray (), "#2");
+               }
+
+               [Test]
+               public void TestSub () {
+                       long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };
+                       for (int i = 0; i < values.Length; ++i) {
+                               for (int j = 0; j < values.Length; ++j) {
+                                       var a = new BigInteger (values [i]);
+                                       var b = new BigInteger (values [j]);
+                                       var c = a - b;
+                                       var d = BigInteger.Subtract (a, b);
+
+                                       Assert.AreEqual (values [i] - values [j], (long)c, "#_" + i + "_" + j);
+                                       Assert.AreEqual (values [i] - values [j], (long)d, "#_" + i + "_" + j);
+                               }
+                       }
+               }
                [Test]
                public void CompareOps () {
                        long[] values = new long [] { -100000000000L, -1000, -1, 0, 1, 1000, 100000000000L };

diff --git a/mcs/class/System.Numerics/Test/System.Numerics/ChangeLog b/mcs/class/System.Numerics/Test/System.Numerics/ChangeLog
index 29752dc1d33096c2dd1c93c207b3f8dc4de31c42..6ce7f178f52c9b7c92c842fc97e6f12d47a6c6f1 100644 (file)
--- a/mcs/class/System.Numerics/Test/System.Numerics/ChangeLog
+++ b/mcs/class/System.Numerics/Test/System.Numerics/ChangeLog
@@ -1,3 +1,7 @@
+2010-03-05 Rodrigo Kumpera  <rkumpera@novell.com>
+
+       * BigIntegerTest.cs: Tests for Sub.
+
 2010-03-05 Rodrigo Kumpera  <rkumpera@novell.com>
 
        * BigIntegerTest.cs: Tests for long CompareTo.