7fbffffd05
- Rename tests/NATS.Server.Tests -> tests/NATS.Server.Core.Tests - Update solution file, InternalsVisibleTo, and csproj references - Remove JETSTREAM_INTEGRATION_MATRIX and NATS.NKeys from csproj (moved to JetStream.Tests and Auth.Tests) - Update all namespaces from NATS.Server.Tests.* to NATS.Server.Core.Tests.* - Replace private GetFreePort/ReadUntilAsync helpers with TestUtilities calls - Fix stale namespace in Transport.Tests/NetworkingGoParityTests.cs
88 lines
2.8 KiB
C#
88 lines
2.8 KiB
C#
using NATS.Server.Protocol;
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namespace NATS.Server.Core.Tests.ProtocolParity;
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public class ProtoWireParityTests
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{
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[Fact]
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public void ScanField_reads_tag_and_value_size_for_length_delimited_field()
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{
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// field=2, type=2, len=3, bytes=abc
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byte[] bytes = [0x12, 0x03, (byte)'a', (byte)'b', (byte)'c'];
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var (number, wireType, size) = ProtoWire.ScanField(bytes);
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number.ShouldBe(2);
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wireType.ShouldBe(2);
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size.ShouldBe(5);
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}
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[Fact]
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public void ScanTag_rejects_invalid_field_numbers()
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{
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var zeroFieldEx = Should.Throw<ProtoWireException>(() => ProtoWire.ScanTag([0x00]));
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zeroFieldEx.Message.ShouldBe(ProtoWire.ErrProtoInvalidFieldNumber);
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var tooLargeTag = ProtoWire.EncodeVarint(((ulong)int.MaxValue + 1UL) << 3);
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var tooLargeEx = Should.Throw<ProtoWireException>(() => ProtoWire.ScanTag(tooLargeTag));
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tooLargeEx.Message.ShouldBe(ProtoWire.ErrProtoInvalidFieldNumber);
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}
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[Fact]
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public void ScanFieldValue_supports_expected_wire_types()
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{
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ProtoWire.ScanFieldValue(5, [0, 0, 0, 0]).ShouldBe(4);
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ProtoWire.ScanFieldValue(1, [0, 0, 0, 0, 0, 0, 0, 0]).ShouldBe(8);
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ProtoWire.ScanFieldValue(0, [0x01]).ShouldBe(1);
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}
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[Fact]
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public void ScanFieldValue_rejects_unsupported_wire_type()
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{
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var ex = Should.Throw<ProtoWireException>(() => ProtoWire.ScanFieldValue(3, [0x00]));
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ex.Message.ShouldBe("unsupported type: 3");
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}
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[Fact]
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public void ScanVarint_reports_insufficient_and_overflow_errors()
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{
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var insufficient = Should.Throw<ProtoWireException>(() => ProtoWire.ScanVarint([0x80]));
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insufficient.Message.ShouldBe(ProtoWire.ErrProtoInsufficient);
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byte[] overflow = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x02];
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var tooLarge = Should.Throw<ProtoWireException>(() => ProtoWire.ScanVarint(overflow));
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tooLarge.Message.ShouldBe(ProtoWire.ErrProtoOverflow);
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}
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[Fact]
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public void ScanBytes_reports_insufficient_when_length_prefix_exceeds_payload()
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{
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var ex = Should.Throw<ProtoWireException>(() => ProtoWire.ScanBytes([0x04, 0x01, 0x02]));
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ex.Message.ShouldBe(ProtoWire.ErrProtoInsufficient);
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}
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[Fact]
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public void EncodeVarint_round_trips_values_via_scan_varint()
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{
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ulong[] values =
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[
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0UL,
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1UL,
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127UL,
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128UL,
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16_383UL,
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16_384UL,
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(1UL << 32) - 1,
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ulong.MaxValue,
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];
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foreach (var value in values)
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{
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var encoded = ProtoWire.EncodeVarint(value);
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var (decoded, size) = ProtoWire.ScanVarint(encoded);
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decoded.ShouldBe(value);
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size.ShouldBe(encoded.Length);
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}
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}
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}
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