WIP JSON refactor - tidy up ScalarTypes

src/test/java/com/avaje/ebeaninternal/server/type/ScalarTypePostgresHstoreTest.java

@@ -0,0 +1,98 @@
+package com.avaje.ebeaninternal.server.type;
+
+import com.fasterxml.jackson.core.JsonFactory;
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonToken;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+import static org.junit.Assert.*;
+
+public class ScalarTypePostgresHstoreTest {
+
+  ScalarTypePostgresHstore hstore = new ScalarTypePostgresHstore();
+
+  JsonFactory jsonFactory = new JsonFactory();
+
+  @Test
+  public void testIsMutable() throws Exception {
+    assertTrue(hstore.isMutable());
+  }
+
+  @Test
+  public void testIsDateTimeCapable() throws Exception {
+    assertFalse(hstore.isDateTimeCapable());
+  }
+
+  @Test
+  public void testIsDirty() throws Exception {
+    Map<String,Object> emptyMap = new HashMap<String, Object>();
+    assertTrue(hstore.isDirty(emptyMap));
+
+    ModifyAwareMap<String,Object> modAware = new ModifyAwareMap<String,Object>(emptyMap);
+    assertFalse(hstore.isDirty(modAware));
+    modAware.put("foo", "Rob");
+    assertTrue(hstore.isDirty(emptyMap));
+  }
+
+  @Test
+  public void testParse() throws Exception {
+    Map<String,Object> map = (Map<String,Object>)hstore.parse("{\"name\":\"rob\"}");
+    assertEquals(1, map.size());
+    assertEquals("rob", map.get("name"));
+  }
+
+  @Test(expected = RuntimeException.class)
+  public void testParseDateTime() throws Exception {
+    Map<String,Object> map = (Map<String,Object>)hstore.parseDateTime(1234L);
+    assertEquals(1, map.size());
+    assertEquals("rob", map.get("name"));
+  }
+
+  @Test
+  public void testJsonWrite() throws Exception {
+    Map<String,Object> map = new LinkedHashMap<String, Object>();
+
+    assertEquals("{}", generateJson(map));
+
+    map.put("name", "rob");
+    assertEquals("{\"name\":\"rob\"}", generateJson(map));
+
+    map.put("age", 12);
+    assertEquals("{\"name\":\"rob\",\"age\":12}", generateJson(map));
+  }
+
+  @Test
+  public void testJsonRead() throws Exception {
+
+    Map<String, Object> map = parse("{\"name\":\"rob\"}");
+    assertEquals(1, map.size());
+    assertEquals("rob", map.get("name"));
+
+    map = parse("{\"name\":\"rob\",\"age\":12}");
+    assertEquals(2, map.size());
+    assertEquals("rob", map.get("name"));
+    assertEquals(12L, map.get("age"));
+
+  }
+
+  private Map<String,Object> parse(String json) throws IOException {
+    JsonParser parser = jsonFactory.createParser(json);
+    return (Map<String,Object>)hstore.jsonRead(parser, JsonToken.FIELD_NAME);
+  }
+
+  private String generateJson(Map<String, Object> emptyMap) throws IOException {
+    StringWriter writer = new StringWriter();
+    JsonGenerator generator = jsonFactory.createGenerator(writer);
+    hstore.jsonWrite(generator, "name", emptyMap);
+    generator.flush();
+    return writer.toString();
+  }
+
+}