271 lines
11 KiB
Java
271 lines
11 KiB
Java
/*
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* Copyright 2017 Christian Basler
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package ch.dissem.msgpack;
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import ch.dissem.msgpack.types.*;
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import org.junit.Test;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Random;
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import static ch.dissem.msgpack.types.Utils.mp;
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import static ch.dissem.msgpack.types.Utils.nil;
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import static org.hamcrest.CoreMatchers.instanceOf;
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import static org.hamcrest.core.Is.is;
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import static org.junit.Assert.assertThat;
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public class ReaderTest {
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private static final Random RANDOM = new Random();
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private Reader reader = Reader.getInstance();
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@Test
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public void ensureDemoJsonIsParsedCorrectly() throws Exception {
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MPType read = reader.read(stream("demo.mp"));
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assertThat(read, instanceOf(MPMap.class));
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assertThat(read.toString(), is(string("demo.json")));
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}
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@Test
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public void ensureDemoJsonIsEncodedCorrectly() throws Exception {
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@SuppressWarnings("MismatchedQueryAndUpdateOfCollection")
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MPMap<MPString, MPType<?>> object = new MPMap<>();
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object.put(mp("compact"), mp(true));
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object.put(mp("schema"), mp(0));
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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object.pack(out);
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assertThat(out.toByteArray(), is(bytes("demo.mp")));
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}
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@Test
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@SuppressWarnings("unchecked")
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public void ensureMPArrayIsEncodedAndDecodedCorrectly() throws Exception {
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MPArray<MPType<?>> array = new MPArray<>(
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mp(new byte[]{1, 3, 3, 7}),
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mp(false),
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mp(Math.PI),
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mp(1.5f),
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mp(42),
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new MPMap<MPNil, MPNil>(),
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nil(),
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mp("yay! \uD83E\uDD13")
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);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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array.pack(out);
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MPType read = reader.read(new ByteArrayInputStream(out.toByteArray()));
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assertThat(read, instanceOf(MPArray.class));
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assertThat((MPArray<MPType<?>>) read, is(array));
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assertThat(read.toJson(), is("[\n AQMDBw==,\n false,\n 3.141592653589793,\n 1.5,\n 42,\n {\n },\n null,\n \"yay! 🤓\"\n]"));
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}
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@Test
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public void ensureFloatIsEncodedAndDecodedCorrectly() throws Exception {
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MPFloat expected = new MPFloat(1.5f);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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expected.pack(out);
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MPType read = reader.read(new ByteArrayInputStream(out.toByteArray()));
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assertThat(read, instanceOf(MPFloat.class));
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MPFloat actual = (MPFloat) read;
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assertThat(actual, is(expected));
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assertThat(actual.getPrecision(), is(MPFloat.Precision.FLOAT32));
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}
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@Test
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public void ensureDoubleIsEncodedAndDecodedCorrectly() throws Exception {
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MPFloat expected = new MPFloat(Math.PI);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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expected.pack(out);
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MPType read = reader.read(new ByteArrayInputStream(out.toByteArray()));
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assertThat(read, instanceOf(MPFloat.class));
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MPFloat actual = (MPFloat) read;
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assertThat(actual, is(expected));
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assertThat(actual.getValue(), is(Math.PI));
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assertThat(actual.getPrecision(), is(MPFloat.Precision.FLOAT64));
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}
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@Test
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public void ensureLongsAreEncodedAndDecodedCorrectly() throws Exception {
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// positive fixnum
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ensureLongIsEncodedAndDecodedCorrectly(0, 1);
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ensureLongIsEncodedAndDecodedCorrectly(127, 1);
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// negative fixnum
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ensureLongIsEncodedAndDecodedCorrectly(-1, 1);
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ensureLongIsEncodedAndDecodedCorrectly(-32, 1);
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// uint 8
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ensureLongIsEncodedAndDecodedCorrectly(128, 2);
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ensureLongIsEncodedAndDecodedCorrectly(255, 2);
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// uint 16
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ensureLongIsEncodedAndDecodedCorrectly(256, 3);
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ensureLongIsEncodedAndDecodedCorrectly(65535, 3);
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// uint 32
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ensureLongIsEncodedAndDecodedCorrectly(65536, 5);
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ensureLongIsEncodedAndDecodedCorrectly(4294967295L, 5);
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// uint 64
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ensureLongIsEncodedAndDecodedCorrectly(4294967296L, 9);
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ensureLongIsEncodedAndDecodedCorrectly(Long.MAX_VALUE, 9);
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// int 8
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ensureLongIsEncodedAndDecodedCorrectly(-33, 2);
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ensureLongIsEncodedAndDecodedCorrectly(-128, 2);
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// int 16
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ensureLongIsEncodedAndDecodedCorrectly(-129, 3);
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ensureLongIsEncodedAndDecodedCorrectly(-32768, 3);
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// int 32
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ensureLongIsEncodedAndDecodedCorrectly(-32769, 5);
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ensureLongIsEncodedAndDecodedCorrectly(Integer.MIN_VALUE, 5);
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// int 64
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ensureLongIsEncodedAndDecodedCorrectly(-2147483649L, 9);
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ensureLongIsEncodedAndDecodedCorrectly(Long.MIN_VALUE, 9);
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}
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private void ensureLongIsEncodedAndDecodedCorrectly(long val, int bytes) throws Exception {
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MPInteger value = mp(val);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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value.pack(out);
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MPType read = reader.read(new ByteArrayInputStream(out.toByteArray()));
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assertThat(out.size(), is(bytes));
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assertThat(read, instanceOf(MPInteger.class));
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assertThat((MPInteger) read, is(value));
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}
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@Test
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public void ensureStringsAreEncodedAndDecodedCorrectly() throws Exception {
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ensureStringIsEncodedAndDecodedCorrectly(0);
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ensureStringIsEncodedAndDecodedCorrectly(31);
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ensureStringIsEncodedAndDecodedCorrectly(32);
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ensureStringIsEncodedAndDecodedCorrectly(255);
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ensureStringIsEncodedAndDecodedCorrectly(256);
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ensureStringIsEncodedAndDecodedCorrectly(65535);
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ensureStringIsEncodedAndDecodedCorrectly(65536);
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}
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@Test
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public void ensureJsonStringsAreEscapedCorrectly() throws Exception {
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StringBuilder builder = new StringBuilder();
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for (char c = '\u0001'; c < ' '; c++) {
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builder.append(c);
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}
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MPString string = new MPString(builder.toString());
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assertThat(string.toJson(), is("\"\\u0001\\u0002\\u0003\\u0004\\u0005\\u0006\\u0007\\b\\t\\n\\u000b\\f\\r\\u000e\\u000f\\u0010\\u0011\\u0012\\u0013\\u0014\\u0015\\u0016\\u0017\\u0018\\u0019\\u001a\\u001b\\u001c\\u001d\\u001e\\u001f\""));
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}
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private void ensureStringIsEncodedAndDecodedCorrectly(int length) throws Exception {
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MPString value = new MPString(stringWithLength(length));
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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value.pack(out);
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MPType read = reader.read(new ByteArrayInputStream(out.toByteArray()));
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assertThat(read, instanceOf(MPString.class));
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assertThat((MPString) read, is(value));
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}
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@Test
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public void ensureBinariesAreEncodedAndDecodedCorrectly() throws Exception {
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ensureBinaryIsEncodedAndDecodedCorrectly(0);
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ensureBinaryIsEncodedAndDecodedCorrectly(255);
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ensureBinaryIsEncodedAndDecodedCorrectly(256);
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ensureBinaryIsEncodedAndDecodedCorrectly(65535);
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ensureBinaryIsEncodedAndDecodedCorrectly(65536);
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}
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private void ensureBinaryIsEncodedAndDecodedCorrectly(int length) throws Exception {
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MPBinary value = new MPBinary(new byte[length]);
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RANDOM.nextBytes(value.getValue());
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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value.pack(out);
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MPType read = reader.read(new ByteArrayInputStream(out.toByteArray()));
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assertThat(read, instanceOf(MPBinary.class));
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assertThat((MPBinary) read, is(value));
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}
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@Test
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public void ensureArraysAreEncodedAndDecodedCorrectly() throws Exception {
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ensureArrayIsEncodedAndDecodedCorrectly(0);
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ensureArrayIsEncodedAndDecodedCorrectly(15);
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ensureArrayIsEncodedAndDecodedCorrectly(16);
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ensureArrayIsEncodedAndDecodedCorrectly(65535);
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ensureArrayIsEncodedAndDecodedCorrectly(65536);
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}
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@SuppressWarnings("unchecked")
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private void ensureArrayIsEncodedAndDecodedCorrectly(int length) throws Exception {
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MPNil nil = new MPNil();
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ArrayList<MPNil> list = new ArrayList<>(length);
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for (int i = 0; i < length; i++) {
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list.add(nil);
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}
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MPArray<MPNil> value = new MPArray<>(list);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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value.pack(out);
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MPType read = reader.read(new ByteArrayInputStream(out.toByteArray()));
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assertThat(read, instanceOf(MPArray.class));
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assertThat((MPArray<MPNil>) read, is(value));
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}
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@Test
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public void ensureMapsAreEncodedAndDecodedCorrectly() throws Exception {
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ensureMapIsEncodedAndDecodedCorrectly(0);
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ensureMapIsEncodedAndDecodedCorrectly(15);
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ensureMapIsEncodedAndDecodedCorrectly(16);
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ensureMapIsEncodedAndDecodedCorrectly(65535);
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ensureMapIsEncodedAndDecodedCorrectly(65536);
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}
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@SuppressWarnings("unchecked")
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private void ensureMapIsEncodedAndDecodedCorrectly(int size) throws Exception {
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MPNil nil = new MPNil();
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HashMap<MPInteger, MPNil> map = new HashMap<>(size);
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for (int i = 0; i < size; i++) {
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map.put(mp(i), nil);
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}
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MPMap<MPInteger, MPNil> value = new MPMap<>(map);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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value.pack(out);
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MPType read = reader.read(new ByteArrayInputStream(out.toByteArray()));
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assertThat(read, instanceOf(MPMap.class));
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assertThat((MPMap<MPInteger, MPNil>) read, is(value));
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}
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private String stringWithLength(int length) {
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StringBuilder result = new StringBuilder(length);
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for (int i = 0; i < length; i++) {
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result.append('a');
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}
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return result.toString();
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}
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private InputStream stream(String resource) {
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return getClass().getClassLoader().getResourceAsStream(resource);
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}
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private byte[] bytes(String resource) throws IOException {
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InputStream in = stream(resource);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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byte[] buffer = new byte[100];
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for (int size = in.read(buffer); size >= 0; size = in.read(buffer)) {
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out.write(buffer, 0, size);
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}
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return out.toByteArray();
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}
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private String string(String resource) throws IOException {
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return new String(bytes(resource), "UTF-8");
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}
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}
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