Add failing tests for #188

cbor/src/test/java/com/fasterxml/jackson/dataformat/cbor/failing/BinaryToStringCoercionTest.java

@@ -0,0 +1,79 @@
+package com.fasterxml.jackson.dataformat.cbor.failing;
+
+import java.util.*;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.dataformat.cbor.CBORTestBase;
+
+// Tests for [dataformat-binary#188], lacking coercions for Binary->String wrt containers
+public class BinaryToStringCoercionTest extends CBORTestBase
+{
+    static class BinaryListWrapper {
+        public List<byte[]> data = Collections.singletonList(
+                new byte[] { 1, 2, 3, 4});
+    }
+
+    static class StringListWrapper {
+        public List<String> data;
+    }
+
+    static class BinarySetWrapper {
+        public Set<byte[]> data = Collections.singleton(new byte[] { 1, 2, 3, 4});
+    }
+
+    static class StringSetWrapper {
+        public Set<String> data;
+    }
+
+    static class BinaryArrayWrapper {
+        public byte[][] data =  new byte[][] { new byte[] { 1, 2, 3, 4} };
+    }
+
+    static class StringArrayWrapper {
+        public String[] data;
+    }
+
+    static class BinaryMapWrapper {
+        public Map<String, byte[]> data = Collections.singletonMap("key",
+                new byte[] { 1, 2, 3, 4});
+    }
+
+    static class StringMapWrapper {
+        public Map<String, String> data;
+    }
+
+    private final ObjectMapper CBOR_MAPPER = cborMapper();
+
+    public void testWithList() throws Exception
+    {
+        byte[] doc = CBOR_MAPPER.writeValueAsBytes(new BinaryListWrapper());
+        StringListWrapper result = CBOR_MAPPER.readValue(doc, StringListWrapper.class);
+        assertEquals(1, result.data.size());
+        assertEquals(String.class, result.data.get(0).getClass());
+    }
+
+    public void testWithSet() throws Exception
+    {
+        byte[] doc = CBOR_MAPPER.writeValueAsBytes(new BinarySetWrapper());
+        StringSetWrapper result = CBOR_MAPPER.readValue(doc, StringSetWrapper.class);
+        assertEquals(1, result.data.size());
+        assertEquals(String.class, result.data.iterator().next().getClass());
+    }
+
+    public void testWithMap() throws Exception
+    {
+        byte[] doc = CBOR_MAPPER.writeValueAsBytes(new BinaryMapWrapper());
+        StringMapWrapper result = CBOR_MAPPER.readValue(doc, StringMapWrapper.class);
+        assertEquals(1, result.data.size());
+        assertEquals(String.class, result.data.get("key").getClass());
+    }
+
+    public void testWithArray() throws Exception
+    {
+        byte[] doc = CBOR_MAPPER.writeValueAsBytes(new BinaryArrayWrapper());
+        StringArrayWrapper result = CBOR_MAPPER.readValue(doc, StringArrayWrapper.class);
+        assertEquals(1, result.data.length);
+        assertEquals(String.class, result.data[0].getClass());
+    }
+}
+

pom.xml

@@ -3,7 +3,7 @@
   <parent>
     <groupId>com.fasterxml.jackson</groupId>
     <artifactId>jackson-base</artifactId>
-    <version>2.10.0</version>
+    <version>2.10.1-SNAPSHOT</version>
   </parent>
   <groupId>com.fasterxml.jackson.dataformat</groupId>
   <artifactId>jackson-dataformats-binary</artifactId>