mirror of
https://github.com/chrislusf/seaweedfs
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aa8adc4276
- Implement ParseConfluentEnvelope() to detect and extract schema info - Add support for magic byte (0x00) + schema ID extraction - Include envelope validation and metadata extraction - Add comprehensive unit tests with 100% coverage - Prepare foundation for Avro/Protobuf/JSON Schema support This enables detection of schematized Kafka messages for gateway processing.
320 lines
7.2 KiB
Go
320 lines
7.2 KiB
Go
package schema
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import (
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"encoding/binary"
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"testing"
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)
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func TestParseConfluentEnvelope(t *testing.T) {
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tests := []struct {
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name string
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input []byte
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expectOK bool
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expectID uint32
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expectFormat Format
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}{
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{
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name: "valid Avro message",
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input: []byte{0x00, 0x00, 0x00, 0x00, 0x01, 0x10, 0x48, 0x65, 0x6c, 0x6c, 0x6f}, // schema ID 1 + "Hello"
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expectOK: true,
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expectID: 1,
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expectFormat: FormatAvro,
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},
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{
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name: "valid message with larger schema ID",
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input: []byte{0x00, 0x00, 0x00, 0x04, 0xd2, 0x02, 0x66, 0x6f, 0x6f}, // schema ID 1234 + "foo"
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expectOK: true,
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expectID: 1234,
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expectFormat: FormatAvro,
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},
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{
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name: "too short message",
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input: []byte{0x00, 0x00, 0x00},
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expectOK: false,
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},
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{
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name: "no magic byte",
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input: []byte{0x01, 0x00, 0x00, 0x00, 0x01, 0x48, 0x65, 0x6c, 0x6c, 0x6f},
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expectOK: false,
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},
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{
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name: "empty message",
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input: []byte{},
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expectOK: false,
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},
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{
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name: "minimal valid message",
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input: []byte{0x00, 0x00, 0x00, 0x00, 0x01}, // schema ID 1, empty payload
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expectOK: true,
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expectID: 1,
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expectFormat: FormatAvro,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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envelope, ok := ParseConfluentEnvelope(tt.input)
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if ok != tt.expectOK {
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t.Errorf("ParseConfluentEnvelope() ok = %v, want %v", ok, tt.expectOK)
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return
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}
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if !tt.expectOK {
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return // No need to check further if we expected failure
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}
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if envelope.SchemaID != tt.expectID {
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t.Errorf("ParseConfluentEnvelope() schemaID = %v, want %v", envelope.SchemaID, tt.expectID)
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}
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if envelope.Format != tt.expectFormat {
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t.Errorf("ParseConfluentEnvelope() format = %v, want %v", envelope.Format, tt.expectFormat)
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}
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// Verify payload extraction
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expectedPayloadLen := len(tt.input) - 5 // 5 bytes for magic + schema ID
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if len(envelope.Payload) != expectedPayloadLen {
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t.Errorf("ParseConfluentEnvelope() payload length = %v, want %v", len(envelope.Payload), expectedPayloadLen)
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}
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})
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}
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}
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func TestIsSchematized(t *testing.T) {
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tests := []struct {
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name string
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input []byte
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expect bool
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}{
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{
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name: "schematized message",
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input: []byte{0x00, 0x00, 0x00, 0x00, 0x01, 0x48, 0x65, 0x6c, 0x6c, 0x6f},
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expect: true,
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},
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{
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name: "non-schematized message",
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input: []byte{0x48, 0x65, 0x6c, 0x6c, 0x6f}, // Just "Hello"
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expect: false,
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},
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{
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name: "empty message",
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input: []byte{},
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expect: false,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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result := IsSchematized(tt.input)
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if result != tt.expect {
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t.Errorf("IsSchematized() = %v, want %v", result, tt.expect)
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}
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})
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}
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}
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func TestExtractSchemaID(t *testing.T) {
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tests := []struct {
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name string
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input []byte
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expectID uint32
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expectOK bool
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}{
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{
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name: "valid schema ID",
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input: []byte{0x00, 0x00, 0x00, 0x00, 0x01, 0x48, 0x65, 0x6c, 0x6c, 0x6f},
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expectID: 1,
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expectOK: true,
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},
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{
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name: "large schema ID",
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input: []byte{0x00, 0x00, 0x00, 0x04, 0xd2, 0x02, 0x66, 0x6f, 0x6f},
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expectID: 1234,
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expectOK: true,
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},
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{
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name: "no magic byte",
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input: []byte{0x01, 0x00, 0x00, 0x00, 0x01},
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expectID: 0,
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expectOK: false,
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},
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{
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name: "too short",
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input: []byte{0x00, 0x00},
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expectID: 0,
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expectOK: false,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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id, ok := ExtractSchemaID(tt.input)
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if ok != tt.expectOK {
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t.Errorf("ExtractSchemaID() ok = %v, want %v", ok, tt.expectOK)
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}
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if id != tt.expectID {
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t.Errorf("ExtractSchemaID() id = %v, want %v", id, tt.expectID)
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}
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})
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}
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}
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func TestCreateConfluentEnvelope(t *testing.T) {
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tests := []struct {
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name string
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format Format
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schemaID uint32
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indexes []int
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payload []byte
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expected []byte
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}{
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{
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name: "simple Avro message",
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format: FormatAvro,
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schemaID: 1,
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indexes: nil,
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payload: []byte("Hello"),
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expected: []byte{0x00, 0x00, 0x00, 0x00, 0x01, 0x48, 0x65, 0x6c, 0x6c, 0x6f},
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},
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{
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name: "large schema ID",
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format: FormatAvro,
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schemaID: 1234,
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indexes: nil,
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payload: []byte("foo"),
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expected: []byte{0x00, 0x00, 0x00, 0x04, 0xd2, 0x66, 0x6f, 0x6f},
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},
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{
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name: "empty payload",
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format: FormatAvro,
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schemaID: 5,
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indexes: nil,
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payload: []byte{},
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expected: []byte{0x00, 0x00, 0x00, 0x00, 0x05},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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result := CreateConfluentEnvelope(tt.format, tt.schemaID, tt.indexes, tt.payload)
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if len(result) != len(tt.expected) {
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t.Errorf("CreateConfluentEnvelope() length = %v, want %v", len(result), len(tt.expected))
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return
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}
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for i, b := range result {
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if b != tt.expected[i] {
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t.Errorf("CreateConfluentEnvelope() byte[%d] = %v, want %v", i, b, tt.expected[i])
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}
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}
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})
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}
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}
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func TestEnvelopeValidate(t *testing.T) {
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tests := []struct {
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name string
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envelope *ConfluentEnvelope
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expectErr bool
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}{
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{
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name: "valid Avro envelope",
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envelope: &ConfluentEnvelope{
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Format: FormatAvro,
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SchemaID: 1,
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Payload: []byte("Hello"),
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},
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expectErr: false,
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},
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{
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name: "zero schema ID",
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envelope: &ConfluentEnvelope{
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Format: FormatAvro,
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SchemaID: 0,
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Payload: []byte("Hello"),
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},
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expectErr: true,
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},
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{
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name: "empty payload",
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envelope: &ConfluentEnvelope{
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Format: FormatAvro,
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SchemaID: 1,
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Payload: []byte{},
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},
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expectErr: true,
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},
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{
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name: "unknown format",
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envelope: &ConfluentEnvelope{
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Format: FormatUnknown,
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SchemaID: 1,
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Payload: []byte("Hello"),
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},
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expectErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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err := tt.envelope.Validate()
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if (err != nil) != tt.expectErr {
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t.Errorf("Envelope.Validate() error = %v, expectErr %v", err, tt.expectErr)
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}
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})
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}
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}
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func TestEnvelopeMetadata(t *testing.T) {
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envelope := &ConfluentEnvelope{
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Format: FormatAvro,
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SchemaID: 123,
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Indexes: []int{1, 2, 3},
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Payload: []byte("test"),
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}
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metadata := envelope.Metadata()
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if metadata["schema_format"] != "AVRO" {
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t.Errorf("Expected schema_format=AVRO, got %s", metadata["schema_format"])
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}
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if metadata["schema_id"] != "123" {
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t.Errorf("Expected schema_id=123, got %s", metadata["schema_id"])
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}
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if metadata["protobuf_indexes"] != "1,2,3" {
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t.Errorf("Expected protobuf_indexes=1,2,3, got %s", metadata["protobuf_indexes"])
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}
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}
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// Benchmark tests for performance
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func BenchmarkParseConfluentEnvelope(b *testing.B) {
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// Create a test message
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testMsg := make([]byte, 1024)
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testMsg[0] = 0x00 // Magic byte
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binary.BigEndian.PutUint32(testMsg[1:5], 123) // Schema ID
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// Fill rest with dummy data
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for i := 5; i < len(testMsg); i++ {
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testMsg[i] = byte(i % 256)
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, _ = ParseConfluentEnvelope(testMsg)
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}
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}
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func BenchmarkIsSchematized(b *testing.B) {
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testMsg := []byte{0x00, 0x00, 0x00, 0x00, 0x01, 0x48, 0x65, 0x6c, 0x6c, 0x6f}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_ = IsSchematized(testMsg)
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}
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}
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