1 files changed, 87 insertions, 0 deletions
diff --git a/core/src/test/java/org/spongycastle/asn1/test/ContentHintsUnitTest.java b/core/src/test/java/org/spongycastle/asn1/test/ContentHintsUnitTest.java
new file mode 100644
index 00000000..b0610f64
--- /dev/null
+++ b/core/src/test/java/org/spongycastle/asn1/test/ContentHintsUnitTest.java
@@ -0,0 +1,87 @@
+package org.spongycastle.asn1.test;
+
+import java.io.IOException;
+
+import org.spongycastle.asn1.ASN1InputStream;
+import org.spongycastle.asn1.ASN1ObjectIdentifier;
+import org.spongycastle.asn1.ASN1Sequence;
+import org.spongycastle.asn1.DERUTF8String;
+import org.spongycastle.asn1.ess.ContentHints;
+
+public class ContentHintsUnitTest
+    extends ASN1UnitTest
+{
+    public String getName()
+    {
+        return "ContentHints";
+    }
+
+    public void performTest()
+        throws Exception
+    {
+        DERUTF8String contentDescription = new DERUTF8String("Description");
+        ASN1ObjectIdentifier contentType = new ASN1ObjectIdentifier("1.2.2.3");
+
+        ContentHints hints = new ContentHints(contentType);
+
+        checkConstruction(hints, contentType, null);
+
+        hints = new ContentHints(contentType, contentDescription);
+
+        checkConstruction(hints, contentType, contentDescription);
+
+        hints = ContentHints.getInstance(null);
+
+        if (hints != null)
+        {
+            fail("null getInstance() failed.");
+        }
+
+        try
+        {
+            ContentHints.getInstance(new Object());
+
+            fail("getInstance() failed to detect bad object.");
+        }
+        catch (IllegalArgumentException e)
+        {
+            // expected
+        }
+    }
+
+    private void checkConstruction(
+        ContentHints hints,
+        ASN1ObjectIdentifier contentType,
+        DERUTF8String description)
+        throws IOException
+    {
+        checkValues(hints, contentType, description);
+
+        hints = ContentHints.getInstance(hints);
+
+        checkValues(hints, contentType, description);
+
+        ASN1InputStream aIn = new ASN1InputStream(hints.toASN1Primitive().getEncoded());
+
+        ASN1Sequence seq = (ASN1Sequence)aIn.readObject();
+
+        hints = ContentHints.getInstance(seq);
+
+        checkValues(hints, contentType, description);
+    }
+
+    private void checkValues(
+        ContentHints hints,
+        ASN1ObjectIdentifier contentType,
+        DERUTF8String description)
+    {
+        checkMandatoryField("contentType", contentType, hints.getContentType());
+        checkOptionalField("description", description, hints.getContentDescription());
+    }
+
+    public static void main(
+        String[]    args)
+    {
+        runTest(new ContentHintsUnitTest());
+    }
+}