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Add unit tests for ProtobufUtil #710

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193 changes: 193 additions & 0 deletions core/src/test/java/org/infinispan/protostream/ProtobufUtilTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -1122,4 +1122,197 @@ public void testStructuredObject() throws IOException {
String converted = ProtobufUtil.toCanonicalJSON(ctx, protobuf);
assertValid(converted);
}

// ---- Additional mutation-coverage tests ----

@Test
public void testWriteToOutputStream() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

ByteArrayOutputStream baos = new ByteArrayOutputStream();
ProtobufUtil.writeTo(ctx, baos, account);
byte[] bytes = baos.toByteArray();

Account result = ProtobufUtil.fromByteArray(ctx, bytes, Account.class);
assertEquals(account, result);
}

@Test
public void testWriteToRandomAccessOutputStream() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

org.infinispan.protostream.RandomAccessOutputStream raos = new org.infinispan.protostream.impl.RandomAccessOutputStreamImpl(512);
ProtobufUtil.writeTo(ctx, raos, account);
byte[] bytes = raos.toByteArray();

Account result = ProtobufUtil.fromByteArray(ctx, bytes, Account.class);
assertEquals(account, result);
}

@Test
public void testWriteToNullObject() throws Exception {
ImmutableSerializationContext ctx = createContext();
assertThrows(NullPointerException.class, () -> ProtobufUtil.toByteArray(ctx, null));
}

@Test
public void testToByteBuffer() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

java.nio.ByteBuffer buffer = ProtobufUtil.toByteBuffer(ctx, account);
byte[] bytes = new byte[buffer.remaining()];
buffer.get(bytes);

Account result = ProtobufUtil.fromByteArray(ctx, bytes, Account.class);
assertEquals(account, result);
}

@Test
public void testFromByteBuffer() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

byte[] bytes = ProtobufUtil.toByteArray(ctx, account);
java.nio.ByteBuffer buffer = java.nio.ByteBuffer.wrap(bytes);

Account result = ProtobufUtil.fromByteBuffer(ctx, buffer, Account.class);
assertEquals(account, result);
}

@Test
public void testFromByteArrayWithOffset() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

byte[] bytes = ProtobufUtil.toByteArray(ctx, account);
// prepend some padding bytes
byte[] padded = new byte[bytes.length + 10];
System.arraycopy(bytes, 0, padded, 10, bytes.length);

Account result = ProtobufUtil.fromByteArray(ctx, padded, 10, bytes.length, Account.class);
assertEquals(account, result);
}

@Test
public void testReadFromInputStreamWithLength() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

byte[] bytes = ProtobufUtil.toByteArray(ctx, account);
try (java.io.InputStream in = new ByteArrayInputStream(bytes)) {
Account result = ProtobufUtil.readFrom(ctx, in, bytes.length, Account.class);
assertEquals(account, result);
}
}

@Test
public void testReadFromInputStreamDeprecated() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

byte[] bytes = ProtobufUtil.toByteArray(ctx, account);
try (java.io.InputStream in = new ByteArrayInputStream(bytes)) {
@SuppressWarnings("deprecation")
Account result = ProtobufUtil.readFrom(ctx, in, Account.class);
assertEquals(account, result);
}
}

@Test
public void testFromEnumClass() throws Exception {
ImmutableSerializationContext ctx = createContext();
byte[] bytes = ProtobufUtil.toByteArray(ctx, createAccount());
assertThrows(IllegalArgumentException.class, () -> ProtobufUtil.fromByteArray(ctx, bytes, Account.Currency.class));
}

@Test
public void testToWrappedByteBuffer() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

java.nio.ByteBuffer buffer = ProtobufUtil.toWrappedByteBuffer(ctx, account);
byte[] bytes = new byte[buffer.remaining()];
buffer.get(bytes);

Account result = ProtobufUtil.fromWrappedByteArray(ctx, bytes);
assertEquals(account, result);
}

@Test
public void testFromWrappedByteBuffer() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

byte[] bytes = ProtobufUtil.toWrappedByteArray(ctx, account);
java.nio.ByteBuffer buffer = java.nio.ByteBuffer.wrap(bytes);

Account result = ProtobufUtil.fromWrappedByteBuffer(ctx, buffer);
assertEquals(account, result);
}

@Test
public void testToWrappedStreamRandomAccess() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

org.infinispan.protostream.RandomAccessOutputStream raos = new org.infinispan.protostream.impl.RandomAccessOutputStreamImpl(512);
ProtobufUtil.toWrappedStream(ctx, raos, account);
byte[] bytes = raos.toByteArray();

Account result = ProtobufUtil.fromWrappedByteArray(ctx, bytes);
assertEquals(account, result);
}

@Test
public void testToWrappedStreamOutputStream() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

ByteArrayOutputStream baos = new ByteArrayOutputStream();
ProtobufUtil.toWrappedStream(ctx, baos, account);
byte[] bytes = baos.toByteArray();

Account result = ProtobufUtil.fromWrappedByteArray(ctx, bytes);
assertEquals(account, result);
}

@Test
@SuppressWarnings("deprecation")
public void testToWrappedStreamDeprecated() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

ByteArrayOutputStream baos = new ByteArrayOutputStream();
ProtobufUtil.toWrappedStream(ctx, baos, account, 4096);
byte[] bytes = baos.toByteArray();

Account result = ProtobufUtil.fromWrappedByteArray(ctx, bytes);
assertEquals(account, result);
}

@Test
public void testFromWrappedStreamDeprecated() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

byte[] bytes = ProtobufUtil.toWrappedByteArray(ctx, account);
try (java.io.InputStream in = new ByteArrayInputStream(bytes)) {
@SuppressWarnings("deprecation")
Account result = ProtobufUtil.fromWrappedStream(ctx, in);
assertEquals(account, result);
}
}

@Test
public void testEstimateSize() throws Exception {
ImmutableSerializationContext ctx = createContext();
Account account = createAccount();

int estimated = ProtobufUtil.estimateSize(ctx, account);
int actual = ProtobufUtil.toByteArray(ctx, account).length;
assertTrue("Estimated size " + estimated + " should be >= actual " + actual, estimated >= actual);
}
}