Issue #2636 - Mockito tests of overloaded methods

Author: robinroos

src/test/java/com/fasterxml/jackson/databind/ObjectReaderValueOfWithValueTypeTest.java

@@ -0,0 +1,149 @@
+package com.fasterxml.jackson.databind;
+
+import com.fasterxml.jackson.databind.json.JsonMapper;
+import com.fasterxml.jackson.databind.node.TextNode;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import java.io.*;
+import java.net.URL;
+import java.util.Map;
+
+import static org.junit.Assert.*;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+public class ObjectReaderValueOfWithValueTypeTest {
+    final JsonMapper MAPPER = JsonMapper.builder().build();
+
+    static class POJO {
+        public Map<String, Object> name;
+    }
+
+    private final POJO pojo = new POJO();
+
+    @Mock
+    ObjectReader objectReader;
+
+
+    @Before
+    public void before() {
+        MockitoAnnotations.initMocks(this);
+    }
+
+    @Test
+    public void testValueOfStringWithValueType() throws IOException {
+        when(objectReader.readValue((String) any())).thenReturn(pojo);
+        when(objectReader.forType((Class) any())).thenReturn(objectReader);
+        when(objectReader.readValue((String) any(), (Class) any())).thenCallRealMethod();
+
+        String source = "";
+        POJO result = objectReader.readValue(source, POJO.class);
+
+        assertEquals(result, pojo);
+        verify(objectReader).forType(POJO.class);
+        verify(objectReader).readValue(source);
+    }
+
+
+    @Test
+    public void testValueOfByteArrayWithValueType() throws IOException {
+        when(objectReader.forType((Class) any())).thenReturn(objectReader);
+        when(objectReader.readValue((byte[]) any())).thenReturn(pojo);
+        when(objectReader.readValue((byte[]) any(), (Class) any())).thenCallRealMethod();
+
+        byte[] source = "{}".getBytes();
+        POJO result = objectReader.readValue(source, POJO.class);
+
+        assertEquals(result, pojo);
+        verify(objectReader).forType(POJO.class);
+        verify(objectReader).readValue(source);
+    }
+
+    @Test
+    public void testValueOfDataInputWithValueType() throws IOException {
+        when(objectReader.forType((Class) any())).thenReturn(objectReader);
+        when(objectReader.readValue((DataInput) any())).thenReturn(pojo);
+        when(objectReader.readValue((DataInput) any(), (Class) any())).thenCallRealMethod();
+
+        DataInput source = new DataInputStream(new ByteArrayInputStream("{}".getBytes()));
+        POJO result = objectReader.readValue(source, POJO.class);
+
+        assertEquals(result, pojo);
+        verify(objectReader).forType(POJO.class);
+        verify(objectReader).readValue(source);
+    }
+
+    @Test
+    public void testValueOfFileWithValueType() throws IOException {
+        when(objectReader.forType((Class) any())).thenReturn(objectReader);
+        when(objectReader.readValue((File) any())).thenReturn(pojo);
+        when(objectReader.readValue((File) any(), (Class) any())).thenCallRealMethod();
+
+        File source = new File("unknownpath");
+        POJO result = objectReader.readValue(source, POJO.class);
+
+        assertEquals(result, pojo);
+        verify(objectReader).forType(POJO.class);
+        verify(objectReader).readValue(source);
+    }
+
+    @Test
+    public void testValueOfInputStreamWithValueType() throws IOException {
+        when(objectReader.forType((Class) any())).thenReturn(objectReader);
+        when(objectReader.readValue((InputStream) any())).thenReturn(pojo);
+        when(objectReader.readValue((InputStream) any(), (Class) any())).thenCallRealMethod();
+
+        InputStream source = new ByteArrayInputStream("{}".getBytes());
+        POJO result = objectReader.readValue(source, POJO.class);
+
+        assertEquals(result, pojo);
+        verify(objectReader).forType(POJO.class);
+        verify(objectReader).readValue(source);
+    }
+
+    @Test
+    public void testValueOfJsonNodeWithValueType() throws IOException {
+        when(objectReader.forType((Class) any())).thenReturn(objectReader);
+        when(objectReader.readValue((JsonNode) any())).thenReturn(pojo);
+        when(objectReader.readValue((JsonNode) any(), (Class) any())).thenCallRealMethod();
+
+        JsonNode source = new TextNode("{}");
+        POJO result = objectReader.readValue(source, POJO.class);
+
+        assertEquals(result, pojo);
+        verify(objectReader).forType(POJO.class);
+        verify(objectReader).readValue(source);
+    }
+
+    @Test
+    public void testValueOfReaderWithValueType() throws IOException {
+        when(objectReader.forType((Class) any())).thenReturn(objectReader);
+        when(objectReader.readValue((Reader) any())).thenReturn(pojo);
+        when(objectReader.readValue((Reader) any(), (Class) any())).thenCallRealMethod();
+
+        Reader source = new StringReader("{}");
+        POJO result = objectReader.readValue(source, POJO.class);
+
+        assertEquals(result, pojo);
+        verify(objectReader).forType(POJO.class);
+        verify(objectReader).readValue(source);
+    }
+
+    @Test
+    public void testValueOfURLWithValueType() throws IOException {
+        when(objectReader.forType((Class) any())).thenReturn(objectReader);
+        when(objectReader.readValue((URL) any())).thenReturn(pojo);
+        when(objectReader.readValue((URL) any(), (Class) any())).thenCallRealMethod();
+
+        URL source = new URL("http://www.test.com");
+        POJO result = objectReader.readValue(source, POJO.class);
+
+        assertEquals(result, pojo);
+        verify(objectReader).forType(POJO.class);
+        verify(objectReader).readValue(source);
+    }
+}