/** Unit test to check for regression of [JACKSON-18]. */
public void testSmallNumbers() throws Exception {
ObjectMapper mapper = new ObjectMapper();
ArrayNode root = mapper.createArrayNode();
for (int i = -20; i <= 20; ++i) {
JsonNode n = root.numberNode(i);
root.add(n);
// Hmmh. Not sure why toString() won't be triggered otherwise...
assertEquals(String.valueOf(i), n.toString());
}
// Loop over 2 different serialization methods
for (int type = 0; type < 2; ++type) {
StringWriter sw = new StringWriter();
if (type == 0) {
JsonGenerator gen = new JsonFactory().createGenerator(sw);
root.serialize(gen, null);
gen.close();
} else {
mapper.writeValue(sw, root);
}
String doc = sw.toString();
JsonParser p = new JsonFactory().createParser(new StringReader(doc));
assertEquals(JsonToken.START_ARRAY, p.nextToken());
for (int i = -20; i <= 20; ++i) {
assertEquals(JsonToken.VALUE_NUMBER_INT, p.nextToken());
assertEquals(i, p.getIntValue());
assertEquals("" + i, p.getText());
}
assertEquals(JsonToken.END_ARRAY, p.nextToken());
p.close();
}
}
private void verifyFromMap(String input) throws Exception {
JsonParser p = new JsonFactory().createParser(input);
assertEquals(JsonToken.START_OBJECT, p.nextToken());
assertEquals(JsonToken.FIELD_NAME, p.nextToken());
assertEquals(FIELD4, getAndVerifyText(p));
assertEquals(JsonToken.VALUE_STRING, p.nextToken());
assertEquals(TEXT2, getAndVerifyText(p));
assertEquals(JsonToken.FIELD_NAME, p.nextToken());
assertEquals(FIELD3, getAndVerifyText(p));
assertEquals(JsonToken.VALUE_NUMBER_INT, p.nextToken());
assertEquals(-1, p.getIntValue());
assertEquals(JsonToken.FIELD_NAME, p.nextToken());
assertEquals(FIELD2, getAndVerifyText(p));
assertEquals(JsonToken.START_ARRAY, p.nextToken());
assertEquals(JsonToken.END_ARRAY, p.nextToken());
assertEquals(JsonToken.FIELD_NAME, p.nextToken());
assertEquals(FIELD1, getAndVerifyText(p));
assertEquals(JsonToken.VALUE_NUMBER_FLOAT, p.nextToken());
assertEquals(DOUBLE_VALUE, p.getDoubleValue(), 0);
assertEquals(JsonToken.END_OBJECT, p.nextToken());
assertNull(p.nextToken());
p.close();
}
private void verifyFromArray(String input) throws Exception {
JsonParser p = new JsonFactory().createParser(new StringReader(input));
assertEquals(JsonToken.START_ARRAY, p.nextToken());
assertEquals(JsonToken.VALUE_STRING, p.nextToken());
assertEquals(TEXT1, getAndVerifyText(p));
assertEquals(JsonToken.VALUE_NUMBER_INT, p.nextToken());
assertEquals(3, p.getIntValue());
assertEquals(JsonToken.START_OBJECT, p.nextToken());
assertEquals(JsonToken.FIELD_NAME, p.nextToken());
assertEquals(FIELD1, getAndVerifyText(p));
assertEquals(JsonToken.VALUE_TRUE, p.nextToken());
assertEquals(JsonToken.FIELD_NAME, p.nextToken());
assertEquals(FIELD2, getAndVerifyText(p));
assertEquals(JsonToken.START_ARRAY, p.nextToken());
assertEquals(JsonToken.END_ARRAY, p.nextToken());
assertEquals(JsonToken.END_OBJECT, p.nextToken());
assertEquals(JsonToken.VALUE_FALSE, p.nextToken());
assertEquals(JsonToken.END_ARRAY, p.nextToken());
assertNull(p.nextToken());
p.close();
}