diff options
| -rw-r--r-- | src/test/java/eu/mulk/jgvariant/core/DecoderTest.java | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/test/java/eu/mulk/jgvariant/core/DecoderTest.java b/src/test/java/eu/mulk/jgvariant/core/DecoderTest.java index 0e16973..3cae863 100644 --- a/src/test/java/eu/mulk/jgvariant/core/DecoderTest.java +++ b/src/test/java/eu/mulk/jgvariant/core/DecoderTest.java @@ -1,10 +1,12 @@ package eu.mulk.jgvariant.core; +import static java.nio.ByteOrder.BIG_ENDIAN; import static java.nio.ByteOrder.LITTLE_ENDIAN; import static java.nio.charset.StandardCharsets.UTF_8; import static org.junit.jupiter.api.Assertions.assertAll; import static org.junit.jupiter.api.Assertions.assertArrayEquals; import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertThrows; import java.nio.ByteBuffer; import java.util.List; @@ -257,4 +259,164 @@ class DecoderTest { TestEntry.class, Decoder.ofString(UTF_8), Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)); assertEquals(new TestEntry("a key", 514), decoder.decode(ByteBuffer.wrap(data))); } + + @Test + void testPaddedPrimitives() { + var data = + new byte[] { + 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x40, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + }; + + record TestRecord(short s, long l, double d) {} + + var decoder = + Decoder.ofStructure( + TestRecord.class, + Decoder.ofShort().withByteOrder(BIG_ENDIAN), + Decoder.ofLong().withByteOrder(LITTLE_ENDIAN), + Decoder.ofDouble()); + assertEquals(new TestRecord((short) 1, 2, 3.25), decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testEmbeddedMaybe() { + var data = new byte[] {0x01, 0x01}; + + record TestRecord(Optional<Byte> set, Optional<Byte> unset) {} + + var decoder = + Decoder.ofStructure( + TestRecord.class, Decoder.ofMaybe(Decoder.ofByte()), Decoder.ofMaybe(Decoder.ofByte())); + assertEquals( + new TestRecord(Optional.of((byte) 1), Optional.empty()), + decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testRecordComponentMismatch() { + record TestRecord(Optional<Byte> set) {} + + var maybeDecoder = Decoder.ofMaybe(Decoder.ofByte()); + assertThrows( + IllegalArgumentException.class, + () -> Decoder.ofStructure(TestRecord.class, maybeDecoder, maybeDecoder)); + } + + @Test + void testTrivialRecord() { + var data = new byte[] {0x00}; + + record TestRecord() {} + + var decoder = Decoder.ofStructure(TestRecord.class); + assertEquals(new TestRecord(), decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testTwoElementTrivialRecordArray() { + var data = new byte[] {0x00, 0x00}; + + record TestRecord() {} + + var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class)); + assertEquals( + List.of(new TestRecord(), new TestRecord()), decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testSingletonTrivialRecordArray() { + var data = new byte[] {0x00}; + + record TestRecord() {} + + var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class)); + assertEquals(List.of(new TestRecord()), decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testEmptyTrivialRecordArray() { + var data = new byte[] {}; + + record TestRecord() {} + + var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class)); + assertEquals(List.of(), decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testVariantArray() { + var data = new byte[] {}; + + record TestRecord() {} + + var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class)); + assertEquals(List.of(), decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testInvalidVariantSignature() { + var data = new byte[] {0x00, 0x00, 0x2E}; + + var decoder = Decoder.ofVariant(); + assertThrows(IllegalArgumentException.class, () -> decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testMissingVariantSignature() { + var data = new byte[] {0x01}; + + var decoder = Decoder.ofVariant(); + assertThrows(IllegalArgumentException.class, () -> decoder.decode(ByteBuffer.wrap(data))); + } + + @Test + void testSimpleVariantRecord() { + // signature: "(bynqiuxtdsogvmiai)" + var data = + new byte[] { + 0x01, // b + 0x02, // y + 0x00, 0x03, // n + 0x00, 0x04, // q + 0x00, 0x00, // (padding) + 0x00, 0x00, 0x00, 0x05, // i + 0x00, 0x00, 0x00, 0x06, // u + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, // x + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, // t + 0x40, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // d + 0x68, 0x69, 0x00, // s + 0x68, 0x69, 0x00, // o + 0x68, 0x69, 0x00, // g + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // (padding) + 0x00, 0x00, 0x00, 0x09, 0x00, 0x69, // v + 0x00, 0x00, // (padding) + 0x00, 0x00, 0x00, 0x0a, // mi + 0x00, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x0c, // ai + 68, 62, 49, 46, 43, // framing offsets + 0x00, 0x28, 0x62, 0x79, 0x6E, 0x71, 0x69, 0x75, 0x78, 0x74, 0x64, 0x73, 0x6F, 0x67, 0x76, + 0x6D, 0x69, 0x61, 0x69, 0x29 + }; + + var decoder = Decoder.ofVariant(); + assertArrayEquals( + new Object[] { + true, + (byte) 2, + (short) 3, + (short) 4, + (int) 5, + (int) 6, + (long) 7, + (long) 8, + (double) 3.25, + "hi", + "hi", + "hi", + 9, + Optional.of(10), + List.of(11, 12) + }, + (Object[]) decoder.decode(ByteBuffer.wrap(data))); + } } |