Add tests for JsonSerialization

vlingo · Nov 29, 2021 · aeb1cbf · aeb1cbf
1 parent 27abee1
commit aeb1cbf
Showing 1 changed file with 168 additions and 0 deletions.
diff --git a/src/test/java/io/vlingo/xoom/common/serialization/JsonSerializationTest.java b/src/test/java/io/vlingo/xoom/common/serialization/JsonSerializationTest.java
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+package io.vlingo.xoom.common.serialization;
+
+import com.google.gson.reflect.TypeToken;
+import org.junit.Test;
+
+import java.lang.reflect.Type;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.OffsetDateTime;
+import java.time.ZoneOffset;
+import java.util.*;
+
+import static org.junit.Assert.assertEquals;
+
+public class JsonSerializationTest {
+
+    @Test
+    public void canSerializeAString() {
+        assertEquals("\"some text\"", JsonSerialization.serialized("some text"));
+    }
+
+    @Test
+    public void canDeserializeAString() {
+        assertEquals("some text", JsonSerialization.deserialized("\"some text\"", String.class));
+        assertEquals("some text", JsonSerialization.deserialized("\"some text\"", (Type) String.class));
+    }
+
+    @Test
+    public void canSerializeAnInt() {
+        assertEquals("5", JsonSerialization.serialized(5));
+    }
+
+    @Test
+    public void canDeserializeAnInt() {
+        assertEquals(5, (int) JsonSerialization.deserialized("5", Integer.TYPE));
+        assertEquals(5, (int) JsonSerialization.deserialized("5", (Type) Integer.TYPE));
+    }
+
+    @Test
+    public void canSerializeTestObject() {
+        assertEquals("{\"myString\":\"the string\",\"myInt\":6}", JsonSerialization.serialized(new TestObject("the string", 6)));
+    }
+
+    @Test
+    public void canDeserializeTestObject() {
+        assertEquals(new TestObject("the string", 6), JsonSerialization.deserialized("{\"myString\":\"the string\",\"myInt\":6}", TestObject.class));
+        assertEquals(new TestObject("the string", 6), JsonSerialization.deserialized("{\"myString\":\"the string\",\"myInt\":6}", (Type) TestObject.class));
+    }
+
+    @Test
+    public void canSerializeAClass() {
+        assertEquals("\"io.vlingo.xoom.common.serialization.JsonSerializationTest$TestObject\"", JsonSerialization.serialized(TestObject.class));
+    }
+
+    @Test
+    public void canDeserializeAClass() {
+        assertEquals(TestObject.class, JsonSerialization.deserialized("\"io.vlingo.xoom.common.serialization.JsonSerializationTest$TestObject\"", Class.class));
+        assertEquals(TestObject.class, JsonSerialization.deserialized("\"io.vlingo.xoom.common.serialization.JsonSerializationTest$TestObject\"", (Type) Class.class));
+    }
+
+    @Test
+    public void canSerializeADate() {
+        assertEquals("\"61598790000000\"", JsonSerialization.serialized(new Date(2021, 11, 28)));
+    }
+
+    @Test
+    public void canDeserializeADate() {
+        assertEquals(new Date(2021, 11, 28), JsonSerialization.deserialized("\"61598790000000\"", Date.class));
+        assertEquals(new Date(2021, 11, 28), JsonSerialization.deserialized("\"61598790000000\"", (Type) Date.class));
+    }
+
+    @Test
+    public void canSerializeLocalDate() {
+        assertEquals("\"18959\"", JsonSerialization.serialized(LocalDate.of(2021, 11, 28)));
+    }
+
+    @Test
+    public void canDeserializeLocalDate() {
+        assertEquals(LocalDate.of(2021, 11, 28), JsonSerialization.deserialized("\"18959\"", LocalDate.class));
+        assertEquals(LocalDate.of(2021, 11, 28), JsonSerialization.deserialized("\"18959\"", (Type) LocalDate.class));
+    }
+
+    @Test
+    public void canDeserializeLocalDateFromJson() {
+        assertEquals(LocalDate.of(2021, 11, 28), JsonSerialization.deserialized("2021-11-28", LocalDate.class));
+        assertEquals(LocalDate.of(2021, 11, 28), JsonSerialization.deserialized("2021-11-28", (Type) LocalDate.class));
+    }
+
+    @Test
+    public void canSerializeLocalDateTime() {
+        assertEquals("\"1638102780000\"", JsonSerialization.serialized(LocalDateTime.of(2021, 11, 28, 12, 33)));
+    }
+
+    @Test
+    public void canDeserializeLocalDateTime() {
+        assertEquals(LocalDateTime.of(2021, 11, 28, 12, 33), JsonSerialization.deserialized("\"1638102780000\"", LocalDateTime.class));
+        assertEquals(LocalDateTime.of(2021, 11, 28, 12, 33), JsonSerialization.deserialized("\"1638102780000\"", (Type) LocalDateTime.class));
+    }
+
+    @Test
+    public void canDeserializeLocalDateTimeFromJson() {
+        assertEquals(LocalDateTime.of(2021, 11, 28, 12, 33, 5), JsonSerialization.deserialized("\"2021-11-28T12:33:05\"", LocalDateTime.class));
+        assertEquals(LocalDateTime.of(2021, 11, 28, 12, 33, 5), JsonSerialization.deserialized("\"2021-11-28T12:33:05\"", (Type) LocalDateTime.class));
+    }
+
+    @Test
+    public void canSerializeOffsetDateTime() {
+        assertEquals("\"1638095585000;+02:00\"", JsonSerialization.serialized(OffsetDateTime.of(2021, 11, 28, 12, 33, 05, 30, ZoneOffset.of("+02:00"))));
+    }
+
+    @Test
+    public void canDeserializeOffsetDateTime() {
+        assertEquals(OffsetDateTime.of(2021, 11, 28, 12, 33, 05, 00, ZoneOffset.of("+02:00")), JsonSerialization.deserialized("\"1638095585000;+02:00\"", OffsetDateTime.class));
+        assertEquals(OffsetDateTime.of(2021, 11, 28, 12, 33, 05, 00, ZoneOffset.of("+02:00")), JsonSerialization.deserialized("\"1638095585000;+02:00\"", (Type) OffsetDateTime.class));
+    }
+
+    @Test
+    public void canSerializeAList() {
+        List<TestObject> list = new ArrayList<>();
+        list.add(new TestObject("text1", 1));
+        list.add(new TestObject("text2", 2));
+        list.add(new TestObject("text3", 3));
+        assertEquals("[{\"myString\":\"text1\",\"myInt\":1},{\"myString\":\"text2\",\"myInt\":2},{\"myString\":\"text3\",\"myInt\":3}]", JsonSerialization.serialized(list));
+    }
+
+    @Test
+    public void canSerializeACollection() {
+        Collection<TestObject> list = new ArrayList<>();
+        list.add(new TestObject("text1", 1));
+        list.add(new TestObject("text2", 2));
+        list.add(new TestObject("text3", 3));
+        assertEquals("[{\"myString\":\"text1\",\"myInt\":1},{\"myString\":\"text2\",\"myInt\":2},{\"myString\":\"text3\",\"myInt\":3}]", JsonSerialization.serialized(list));
+    }
+
+    @Test
+    public void canDeserializeAList() {
+        Collection<TestObject> expectedList = new ArrayList<>();
+        expectedList.add(new TestObject("text1", 1));
+        expectedList.add(new TestObject("text2", 2));
+        expectedList.add(new TestObject("text3", 3));
+
+        assertEquals(expectedList, JsonSerialization.deserializedList("[{\"myString\":\"text1\",\"myInt\":1},{\"myString\":\"text2\",\"myInt\":2},{\"myString\":\"text3\",\"myInt\":3}]", new TypeToken<ArrayList<TestObject>>() {
+        }.getType()));
+    }
+
+    private static class TestObject {
+        private String myString;
+        private int myInt;
+
+        public TestObject(String myString, int myInt) {
+            this.myString = myString;
+            this.myInt = myInt;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) return true;
+            if (o == null || getClass() != o.getClass()) return false;
+            TestObject that = (TestObject) o;
+            return myInt == that.myInt && myString.equals(that.myString);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(myString, myInt);
+        }
+    }
+}