Add (failing) test cases for #2352

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/failing/EnumAliasDeser2352Test.java

@@ -0,0 +1,91 @@
+package com.fasterxml.jackson.failing;
+
+import com.fasterxml.jackson.annotation.JsonAlias;
+import com.fasterxml.jackson.annotation.JsonEnumDefaultValue;
+
+import com.fasterxml.jackson.databind.*;
+
+public class EnumAliasDeser2352Test extends BaseMapTest
+{
+    // for [databind#2352]: Support aliases on enum values
+    enum MyEnum2352_1 {
+        A,
+        @JsonAlias({"singleAlias"})
+        B,
+        @JsonAlias({"multipleAliases1", "multipleAliases2"})
+        C
+    }
+    // for [databind#2352]: Support aliases on enum values
+    enum MyEnum2352_2 {
+        A,
+        @JsonAlias({"singleAlias"})
+        B,
+        @JsonAlias({"multipleAliases1", "multipleAliases2"})
+        C;
+
+        @Override
+        public String toString() {
+            return name().toLowerCase();
+        }
+    }
+    // for [databind#2352]: Support aliases on enum values
+    enum MyEnum2352_3 {
+        A,
+        @JsonEnumDefaultValue
+        @JsonAlias({"singleAlias"})
+        B,
+        @JsonAlias({"multipleAliases1", "multipleAliases2"})
+        C
+    }
+
+    /*
+    /**********************************************************************
+    /* Test methods
+    /**********************************************************************
+     */
+
+    protected final ObjectMapper MAPPER = newJsonMapper();
+
+    // for [databind#2352]
+    public void testEnumWithAlias() throws Exception {
+        ObjectReader reader = MAPPER.readerFor(MyEnum2352_1.class);
+        MyEnum2352_1 nonAliased = reader.readValue(quote("A"));
+        assertEquals(MyEnum2352_1.A, nonAliased);
+        MyEnum2352_1 singleAlias = reader.readValue(quote("singleAlias"));
+        assertEquals(MyEnum2352_1.B, singleAlias);
+        MyEnum2352_1 multipleAliases1 = reader.readValue(quote("multipleAliases1"));
+        assertEquals(MyEnum2352_1.C, multipleAliases1);
+        MyEnum2352_1 multipleAliases2 = reader.readValue(quote("multipleAliases2"));
+        assertEquals(MyEnum2352_1.C, multipleAliases2);
+    }
+
+    // for [databind#2352]
+    public void testEnumWithAliasAndToStringSupported() throws Exception {
+        ObjectReader reader = MAPPER.readerFor(MyEnum2352_2.class)
+                .with(DeserializationFeature.READ_ENUMS_USING_TO_STRING);
+        MyEnum2352_2 nonAliased = reader.readValue(quote("a"));
+        assertEquals(MyEnum2352_2.A, nonAliased);
+        MyEnum2352_2 singleAlias = reader.readValue(quote("singleAlias"));
+        assertEquals(MyEnum2352_2.B, singleAlias);
+        MyEnum2352_2 multipleAliases1 = reader.readValue(quote("multipleAliases1"));
+        assertEquals(MyEnum2352_2.C, multipleAliases1);
+        MyEnum2352_2 multipleAliases2 = reader.readValue(quote("multipleAliases2"));
+        assertEquals(MyEnum2352_2.C, multipleAliases2);
+    }
+
+    // for [databind#2352]
+    public void testEnumWithAliasAndDefaultForUnknownValueEnabled() throws Exception {
+        ObjectReader reader = MAPPER.readerFor(MyEnum2352_3.class)
+                .with(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_USING_DEFAULT_VALUE);
+        MyEnum2352_3 nonAliased = reader.readValue(quote("A"));
+        assertEquals(MyEnum2352_3.A, nonAliased);
+        MyEnum2352_3 singleAlias = reader.readValue(quote("singleAlias"));
+        assertEquals(MyEnum2352_3.B, singleAlias);
+        MyEnum2352_3 defaulted = reader.readValue(quote("unknownValue"));
+        assertEquals(MyEnum2352_3.B, defaulted);
+        MyEnum2352_3 multipleAliases1 = reader.readValue(quote("multipleAliases1"));
+        assertEquals(MyEnum2352_3.C, multipleAliases1);
+        MyEnum2352_3 multipleAliases2 = reader.readValue(quote("multipleAliases2"));
+        assertEquals(MyEnum2352_3.C, multipleAliases2);
+    }
+}