@Test
public void handlesRequest() throws Exception {
handler.handleMessage(
"{\"jsonrpc\": \"2.0\", \"method\": \"subtract\", \"params\": [42, 23], \"id\": 1}");
assertEquals(1, listener.requests.size());
assertEquals(0, listener.responses.size());
assertEquals(0, listener.notifications.size());
assertEquals(0, listener.unknownMessages.size());
assertContainsValue(listener.requests, field("id", Long.valueOf(1)), true);
assertContainsValue(listener.requests, field("method", "subtract"), true);
assertContainsValue(listener.requests, field("jsonrpc", "2.0"), true);
assertContainsValue(
listener.requests,
field(
"params",
new ArrayList<Long>() {
{
add(Long.valueOf(42));
add(Long.valueOf(23));
}
}),
true);
assertContainsKey(listener.requests, "result", false);
assertContainsKey(listener.requests, "error", false);
handler.handleMessage(
"{\"jsonrpc\": \"2.0\", \"method\": \"subtract\", \"params\": {\"subtrahend\": 23, \"minuend\": 42}, \"id\": 3}");
assertEquals(2, listener.requests.size());
assertEquals(0, listener.responses.size());
assertEquals(0, listener.notifications.size());
assertEquals(0, listener.unknownMessages.size());
assertContainsValue(listener.requests, field("id", Long.valueOf(3)), true);
assertContainsValue(listener.requests, field("method", "subtract"), true);
assertContainsValue(listener.requests, field("jsonrpc", "2.0"), true);
assertContainsValue(
listener.requests,
field(
"params",
new HashMap<String, Long>() {
{
put("minuend", Long.valueOf(42));
put("subtrahend", Long.valueOf(23));
}
}),
true);
assertContainsKey(listener.requests, "result", false);
assertContainsKey(listener.requests, "error", false);
}
@Test
public void handlesResponse() throws Exception {
handler.handleMessage("{\"jsonrpc\": \"2.0\", \"result\": 19, \"id\": 1}");
assertEquals(0, listener.requests.size());
assertEquals(1, listener.responses.size());
assertEquals(0, listener.notifications.size());
assertEquals(0, listener.unknownMessages.size());
assertContainsValue(listener.responses, field("id", Long.valueOf(1)), true);
assertContainsValue(listener.responses, field("jsonrpc", "2.0"), true);
assertContainsValue(listener.responses, field("result", Long.valueOf(19)), true);
assertContainsKey(listener.requests, "method", false);
handler.handleMessage(
"{\"jsonrpc\": \"2.0\", \"error\": {\"code\": -32601, \"message\": \"Method not found\"}, \"id\": \"1\"}");
assertEquals(0, listener.requests.size());
assertEquals(2, listener.responses.size());
assertEquals(0, listener.notifications.size());
assertEquals(0, listener.unknownMessages.size());
assertContainsValue(listener.responses, field("id", "1"), true);
assertContainsValue(listener.responses, field("jsonrpc", "2.0"), true);
assertContainsValue(
listener.responses,
field(
"error",
new HashMap<String, Object>() {
{
/* code
A Number that indicates the error type that occurred.
This MUST be an integer. JSON-RPC 2.0 Specification
*/
put("code", Integer.valueOf(-32601));
put("message", "Method not found");
}
}),
true);
assertContainsKey(listener.requests, "method", false);
}
@Test
public void handlesNotification() throws Exception {
handler.handleMessage("{\"jsonrpc\": \"2.0\", \"method\": \"foobar\"}");
assertEquals(0, listener.requests.size());
assertEquals(0, listener.responses.size());
assertEquals(1, listener.notifications.size());
assertEquals(0, listener.unknownMessages.size());
assertContainsValue(listener.notifications, field("jsonrpc", "2.0"), true);
assertContainsValue(listener.notifications, field("method", "foobar"), true);
assertContainsKey(listener.notifications, "id", false);
assertContainsKey(listener.notifications, "result", false);
assertContainsKey(listener.notifications, "error", false);
handler.handleMessage(
"{\"jsonrpc\": \"2.0\", \"method\": \"notify_sum\", \"params\": [1,2,4]}");
assertEquals(0, listener.requests.size());
assertEquals(0, listener.responses.size());
assertEquals(2, listener.notifications.size());
assertEquals(0, listener.unknownMessages.size());
assertContainsValue(listener.notifications, field("method", "notify_sum"), true);
assertContainsValue(listener.notifications, field("jsonrpc", "2.0"), true);
assertContainsValue(
listener.notifications,
field(
"params",
new ArrayList<Long>() {
{
add(Long.valueOf(1));
add(Long.valueOf(2));
add(Long.valueOf(4));
}
}),
true);
assertContainsKey(listener.notifications, "id", false);
assertContainsKey(listener.notifications, "result", false);
assertContainsKey(listener.notifications, "error", false);
}
@Test
public void handleInvalidJson() throws Exception {
String invalidJson = "{\"jsonrpc\": \"2.0\", \"method\": \"foobar, \"params\": \"bar\", \"baz]";
handler.handleMessage(invalidJson);
assertEquals(0, listener.requests.size());
assertEquals(0, listener.responses.size());
assertEquals(0, listener.notifications.size());
assertEquals(1, listener.unknownMessages.size());
assertEquals(invalidJson, listener.unknownMessages.get(0));
invalidJson = "{\"jsonrpc\": \"2.0\", \"method\"";
handler.handleMessage(invalidJson);
assertEquals(0, listener.requests.size());
assertEquals(0, listener.responses.size());
assertEquals(0, listener.notifications.size());
assertEquals(2, listener.unknownMessages.size());
assertEquals(invalidJson, listener.unknownMessages.get(1));
}