1 files changed, 45 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/test/java/org/spongycastle/pqc/math/ntru/polynomial/test/SparseTernaryPolynomialTest.java b/libraries/spongycastle/core/src/test/java/org/spongycastle/pqc/math/ntru/polynomial/test/SparseTernaryPolynomialTest.java
new file mode 100644
index 000000000..a4d9ce7e9
--- /dev/null
+++ b/libraries/spongycastle/core/src/test/java/org/spongycastle/pqc/math/ntru/polynomial/test/SparseTernaryPolynomialTest.java
@@ -0,0 +1,45 @@
+package org.spongycastle.pqc.math.ntru.polynomial.test;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.security.SecureRandom;
+
+import junit.framework.TestCase;
+import org.spongycastle.pqc.math.ntru.polynomial.BigIntPolynomial;
+import org.spongycastle.pqc.math.ntru.polynomial.DenseTernaryPolynomial;
+import org.spongycastle.pqc.math.ntru.polynomial.IntegerPolynomial;
+import org.spongycastle.pqc.math.ntru.polynomial.SparseTernaryPolynomial;
+
+public class SparseTernaryPolynomialTest
+    extends TestCase
+{
+
+    /**
+     * tests mult(IntegerPolynomial) and mult(BigIntPolynomial)
+     */
+    public void testMult()
+    {
+        SecureRandom random = new SecureRandom();
+        SparseTernaryPolynomial p1 = SparseTernaryPolynomial.generateRandom(1000, 500, 500, random);
+        IntegerPolynomial p2 = DenseTernaryPolynomial.generateRandom(1000, random);
+
+        IntegerPolynomial prod1 = p1.mult(p2);
+        IntegerPolynomial prod2 = p1.mult(p2);
+        assertEquals(prod1, prod2);
+
+        BigIntPolynomial p3 = new BigIntPolynomial(p2);
+        BigIntPolynomial prod3 = p1.mult(p3);
+
+        assertEquals(new BigIntPolynomial(prod1), prod3);
+    }
+
+    public void testFromToBinary()
+        throws IOException
+    {
+        SecureRandom random = new SecureRandom();
+        SparseTernaryPolynomial poly1 = SparseTernaryPolynomial.generateRandom(1000, 100, 101, random);
+        ByteArrayInputStream poly1Stream = new ByteArrayInputStream(poly1.toBinary());
+        SparseTernaryPolynomial poly2 = SparseTernaryPolynomial.fromBinary(poly1Stream, 1000, 100, 101);
+        assertEquals(poly1, poly2);
+    }
+}
+\ No newline at end of file