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schema_compatibility_test.go
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schema_compatibility_test.go
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package avro_test
import (
"math/big"
"strconv"
"testing"
"time"
"github.com/hamba/avro/v2"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestNewSchemaCompatibility(t *testing.T) {
sc := avro.NewSchemaCompatibility()
assert.IsType(t, &avro.SchemaCompatibility{}, sc)
}
func TestSchemaCompatibility_Compatible(t *testing.T) {
tests := []struct {
name string
reader string
writer string
wantErr assert.ErrorAssertionFunc
}{
{
name: "Primitive Matching",
reader: `"int"`,
writer: `"int"`,
wantErr: assert.NoError,
},
{
name: "Int Promote Long",
reader: `"long"`,
writer: `"int"`,
wantErr: assert.NoError,
},
{
name: "Int Promote Float",
reader: `"float"`,
writer: `"int"`,
wantErr: assert.NoError,
},
{
name: "Int Promote Double",
reader: `"double"`,
writer: `"int"`,
wantErr: assert.NoError,
},
{
name: "Long Promote Float",
reader: `"float"`,
writer: `"long"`,
wantErr: assert.NoError,
},
{
name: "Long Promote Double",
reader: `"double"`,
writer: `"long"`,
wantErr: assert.NoError,
},
{
name: "Float Promote Double",
reader: `"double"`,
writer: `"float"`,
wantErr: assert.NoError,
},
{
name: "String Promote Bytes",
reader: `"bytes"`,
writer: `"string"`,
wantErr: assert.NoError,
},
{
name: "Bytes Promote String",
reader: `"string"`,
writer: `"bytes"`,
wantErr: assert.NoError,
},
{
name: "Union Match",
reader: `["int", "long", "string"]`,
writer: `["string", "int", "long"]`,
wantErr: assert.NoError,
},
{
name: "Union Reader Missing Schema",
reader: `["int", "string"]`,
writer: `["string", "int", "long"]`,
wantErr: assert.Error,
},
{
name: "Union Writer Missing Schema",
reader: `["int", "long", "string"]`,
writer: `["string", "int"]`,
wantErr: assert.NoError,
},
{
name: "Union Writer Not Union",
reader: `["int", "long", "string"]`,
writer: `"int"`,
wantErr: assert.NoError,
},
{
name: "Union Writer Not Union With Error",
reader: `["string"]`,
writer: `"int"`,
wantErr: assert.Error,
},
{
name: "Union Reader Not Union",
reader: `"int"`,
writer: `["int"]`,
wantErr: assert.NoError,
},
{
name: "Union Reader Not Union With Error",
reader: `"int"`,
writer: `["string", "int", "long"]`,
wantErr: assert.Error,
},
{
name: "Array Match",
reader: `{"type":"array", "items": "int"}`,
writer: `{"type":"array", "items": "int"}`,
wantErr: assert.NoError,
},
{
name: "Array Items Mismatch",
reader: `{"type":"array", "items": "int"}`,
writer: `{"type":"array", "items": "string"}`,
wantErr: assert.Error,
},
{
name: "Map Match",
reader: `{"type":"map", "values": "int"}`,
writer: `{"type":"map", "values": "int"}`,
wantErr: assert.NoError,
},
{
name: "Map Items Mismatch",
reader: `{"type":"map", "values": "int"}`,
writer: `{"type":"map", "values": "string"}`,
wantErr: assert.Error,
},
{
name: "Fixed Match",
reader: `{"type":"fixed", "name":"test", "namespace": "org.hamba.avro", "size": 12}`,
writer: `{"type":"fixed", "name":"test", "namespace": "org.hamba.avro", "size": 12}`,
wantErr: assert.NoError,
},
{
name: "Fixed Name Mismatch",
reader: `{"type":"fixed", "name":"test1", "namespace": "org.hamba.avro", "size": 12}`,
writer: `{"type":"fixed", "name":"test", "namespace": "org.hamba.avro", "size": 12}`,
wantErr: assert.Error,
},
{
name: "Fixed Size Mismatch",
reader: `{"type":"fixed", "name":"test", "namespace": "org.hamba.avro", "size": 13}`,
writer: `{"type":"fixed", "name":"test", "namespace": "org.hamba.avro", "size": 12}`,
wantErr: assert.Error,
},
{
name: "Enum Match",
reader: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1", "TEST2"]}`,
writer: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1", "TEST2"]}`,
wantErr: assert.NoError,
},
{
name: "Enum Name Mismatch",
reader: `{"type":"enum", "name":"test1", "namespace": "org.hamba.avro", "symbols":["TEST1", "TEST2"]}`,
writer: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1", "TEST2"]}`,
wantErr: assert.Error,
},
{
name: "Enum Reader Missing Symbol",
reader: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1"]}`,
writer: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1", "TEST2"]}`,
wantErr: assert.Error,
},
{
name: "Enum Reader Missing Symbol With Default",
reader: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1"], "default": "TEST1"}`,
writer: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1", "TEST2"]}`,
wantErr: assert.NoError,
},
{
name: "Enum Writer Missing Symbol",
reader: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1", "TEST2"]}`,
writer: `{"type":"enum", "name":"test", "namespace": "org.hamba.avro", "symbols":["TEST1"]}`,
wantErr: assert.NoError,
},
{
name: "Record Match",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}, {"name": "b", "type": "string"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "b", "type": "string"}, {"name": "a", "type": "int"}]}`,
wantErr: assert.NoError,
},
{
name: "Record Name Mismatch",
reader: `{"type":"record", "name":"test1", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int", "default": 1}, {"name": "b", "type": "string"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "b", "type": "string", "default": "b"}, {"name": "a", "type": "int"}]}`,
wantErr: assert.Error,
},
{
name: "Record Schema Mismatch",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "string"}, {"name": "b", "type": "string"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "b", "type": "string"}, {"name": "a", "type": "int"}]}`,
wantErr: assert.Error,
},
{
name: "Record Reader Field Missing",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "b", "type": "string"}, {"name": "a", "type": "int"}]}`,
wantErr: assert.NoError,
},
{
name: "Record Writer Field Missing With Default",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}, {"name": "b", "type": "string", "default": "test"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
wantErr: assert.NoError,
},
{
name: "Record Writer Field Missing Without Default",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}, {"name": "b", "type": "string"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
wantErr: assert.Error,
},
{
name: "Ref Dereference",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": {"type":"record", "name":"test1", "namespace": "org.hamba.avro", "fields":[{"name": "b", "type": "int"}]}}, {"name": "b", "type": "test1"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": {"type":"record", "name":"test1", "namespace": "org.hamba.avro", "fields":[{"name": "b", "type": "int"}]}}, {"name": "b", "type": "test"}]}`,
wantErr: assert.Error,
},
{
name: "Breaks Recursion",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "test"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "test"}]}`,
wantErr: assert.NoError,
},
{
name: "Comparison with different namespaces",
writer: `{"type":"record", "name":"Obj", "namespace": "ns", "fields":[{"name": "a", "type": "int"}]}`,
reader: `{"type":"record", "name":"Obj", "fields":[{"name": "a", "type": "int"}]}`,
wantErr: assert.NoError,
},
}
for _, test := range tests {
test := test
t.Run(test.name, func(t *testing.T) {
t.Parallel()
r, err := avro.ParseWithCache(test.reader, "", &avro.SchemaCache{})
require.NoError(t, err)
w, err := avro.ParseWithCache(test.writer, "", &avro.SchemaCache{})
require.NoError(t, err)
sc := avro.NewSchemaCompatibility()
err = sc.Compatible(r, w)
test.wantErr(t, err)
})
}
}
func TestSchemaCompatibility_CompatibleUsesCacheWithNoError(t *testing.T) {
reader := `"int"`
writer := `"int"`
r := avro.MustParse(reader)
w := avro.MustParse(writer)
sc := avro.NewSchemaCompatibility()
_ = sc.Compatible(r, w)
err := sc.Compatible(r, w)
assert.NoError(t, err)
}
func TestSchemaCompatibility_CompatibleUsesCacheWithError(t *testing.T) {
reader := `"int"`
writer := `"string"`
r := avro.MustParse(reader)
w := avro.MustParse(writer)
sc := avro.NewSchemaCompatibility()
_ = sc.Compatible(r, w)
err := sc.Compatible(r, w)
assert.Error(t, err)
}
func TestSchemaCompatibility_Resolve(t *testing.T) {
tests := []struct {
name string
reader string
writer string
value any
want any
}{
{
name: "Int Promote Long",
reader: `"long"`,
writer: `"int"`,
value: 10,
want: int64(10),
},
{
name: "Int Promote Long Time millis",
reader: `{"type":"long","logicalType":"timestamp-millis"}`,
writer: `"int"`,
value: 5000,
want: time.UnixMilli(5000).UTC(),
},
{
name: "Int Promote Long Time micros",
reader: `{"type":"long","logicalType":"timestamp-micros"}`,
writer: `"int"`,
value: 5000,
want: time.UnixMicro(5000).UTC(),
},
{
name: "Int Promote Long Time micros",
reader: `{"type":"long","logicalType":"time-micros"}`,
writer: `"int"`,
value: 5000,
want: 5000 * time.Microsecond,
},
{
name: "Int Promote Float",
reader: `"float"`,
writer: `"int"`,
value: 10,
want: float32(10),
},
{
name: "Int Promote Double",
reader: `"double"`,
writer: `"int"`,
value: 10,
want: float64(10),
},
{
name: "Long Promote Float",
reader: `"float"`,
writer: `"long"`,
value: int64(10),
want: float32(10),
},
{
name: "Long Promote Double",
reader: `"double"`,
writer: `"long"`,
value: int64(10),
want: float64(10),
},
{
name: "Float Promote Double",
reader: `"double"`,
writer: `"float"`,
value: float32(10.5),
want: float64(10.5),
},
{
name: "String Promote Bytes",
reader: `"bytes"`,
writer: `"string"`,
value: "foo",
want: []byte("foo"),
},
{
// I'm not sure about this edge cases;
// I took the reverse path and tried to find a Decimal that can be encoded to
// a binary that is a valid UTF-8 sequence.
name: "String Promote Bytes With Logical Decimal",
reader: `{"type":"bytes","logicalType":"decimal","precision":4,"scale":2}`,
writer: `"string"`,
value: "d",
want: big.NewRat(1, 1),
},
{
name: "Bytes Promote String",
reader: `"string"`,
writer: `"bytes"`,
value: []byte("foo"),
want: "foo",
},
{
name: "Array With Items Promotion",
reader: `{"type":"array", "items": "long"}`,
writer: `{"type":"array", "items": "int"}`,
value: []any{int32(10), int32(15)},
want: []any{int64(10), int64(15)},
},
{
name: "Map With Items Promotion",
reader: `{"type":"map", "values": "bytes"}`,
writer: `{"type":"map", "values": "string"}`,
value: map[string]any{"foo": "bar"},
want: map[string]any{"foo": []byte("bar")},
},
{
name: "Enum Reader Missing Symbols With Default",
reader: `{
"type": "enum",
"name": "test.enum",
"symbols": ["foo"],
"default": "foo"
}`,
writer: `{
"type": "enum",
"name": "test.enum",
"symbols": ["foo", "bar"]
}`,
value: "bar",
want: "foo",
},
{
name: "Enum Writer Missing Symbols",
reader: `{
"type": "enum",
"name": "test.enum",
"symbols": ["foo", "bar"]
}`,
writer: `{
"type": "enum",
"name": "test.enum",
"symbols": ["foo"]
}`,
value: "foo",
want: "foo",
},
{
name: "Enum Writer Missing Symbols and Unused Reader Default",
reader: `{
"type": "enum",
"name": "test.enum",
"symbols": ["foo", "bar"],
"default": "bar"
}`,
writer: `{
"type": "enum",
"name": "test.enum",
"symbols": ["foo"]
}`,
value: "foo",
want: "foo",
},
{
name: "Enum With Alias",
reader: `{
"type": "enum",
"name": "test.enum2",
"aliases": ["test.enum"],
"symbols": ["foo", "bar"]
}`,
writer: `{
"type": "enum",
"name": "test.enum",
"symbols": ["foo", "bar"]
}`,
value: "foo",
want: "foo",
},
{
name: "Fixed With Alias",
reader: `{
"type": "fixed",
"name": "test.fixed2",
"aliases": ["test.fixed"],
"size": 3
}`,
writer: `{
"type": "fixed",
"name": "test.fixed",
"size": 3
}`,
value: [3]byte{'f', 'o', 'o'},
want: [3]byte{'f', 'o', 'o'},
},
{
name: "Union Match",
reader: `["int", "long", "string"]`,
writer: `["string", "int", "long"]`,
value: "foo",
want: "foo",
},
{
name: "Union Writer Missing Schema",
reader: `["int", "long", "string"]`,
writer: `["string", "int"]`,
value: "foo",
want: "foo",
},
{
name: "Union Writer Not Union",
reader: `["int", "long", "string"]`,
writer: `"int"`,
value: 10,
want: 10,
},
{
name: "Union Reader Not Union",
reader: `"int"`,
writer: `["int"]`,
value: 10,
want: 10,
},
{
name: "Record Reader With Alias",
reader: `{"type":"record", "name":"test2", "aliases": ["test"], "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10},
},
{
name: "Record Reader Field Missing",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "b", "type": "string"}, {"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10, "b": "foo"},
want: map[string]any{"a": 10},
},
{
name: "Record Writer Field Missing With Default",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}, {"name": "b", "type": "string", "default": "test"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": "test"},
},
{
name: "Record Reader Field With Alias",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "aa", "type": "int", "aliases": ["a"]}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"aa": 10},
},
{
name: "Record Reader Field With Alias And Promotion",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "aa", "type": "double", "aliases": ["a"]}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"aa": float64(10)},
},
{
name: "Record Writer Field Missing With Bytes Default",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}, {"name": "b", "type": "bytes", "default":"\u0066\u006f\u006f"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": []byte("foo")},
},
{
name: "Record Writer Field Missing With Bytes Default",
reader: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}, {"name": "b", "type": "bytes", "default":"\u0066\u006f\u006f"}]}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": []byte("foo")},
},
{
name: "Record Writer Field Missing With Record Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type": {
"type": "record",
"name": "test.record",
"fields" : [
{"name": "a", "type": "string"},
{"name": "b", "type": "string"}
]
},
"default":{"a":"foo", "b": "bar"}
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": map[string]any{"a": "foo", "b": "bar"}},
},
{
// assert that we are not mistakenly using the wrong cached decoder.
// decoder cache must be aware of fields defaults.
name: "Record Writer Field Missing With Record Default 2",
reader: `{
"type":"record",
"name":"test",
"namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type": {
"type": "record",
"name": "test.record",
"fields" : [
{"name": "a", "type": "string"},
{"name": "b", "type": "string"}
]
},
"default":{"a":"foo 2", "b": "bar 2"}
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": map[string]any{"a": "foo 2", "b": "bar 2"}},
},
{
name: "Record Writer Field Missing With Map Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type": {
"type": "map", "values": "string"
},
"default":{"foo":"bar"}
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": map[string]any{"foo": "bar"}},
},
{
name: "Record Writer Field Missing With Array Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type": {
"type": "array", "items": "int"
},
"default":[1, 2, 3, 4]
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": []any{1, 2, 3, 4}},
},
{
name: "Record Writer Field Missing With Union Null Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type":["null", "long"],
"default": null
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": nil},
},
{
name: "Record Writer Field Missing With Union Non-null Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type":["string", "long"],
"default": "bar"
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{"a": 10, "b": "bar"},
},
{
name: "Record Writer Field Missing With Fixed Duration Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type": {
"type": "fixed",
"name": "test.fixed",
"logicalType":"duration",
"size":12
},
"default": "\u000c\u0000\u0000\u0000\u0022\u0000\u0000\u0000\u0052\u00aa\u0008\u0000"
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{
"a": 10,
"b": avro.LogicalDuration{
Months: uint32(12),
Days: uint32(34),
Milliseconds: uint32(567890),
},
},
},
{
name: "Record Writer Field Missing With Fixed Logical Decimal Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type": {
"type": "fixed",
"name": "test.fixed",
"size": 6,
"logicalType":"decimal",
"precision":4,
"scale":2
},
"default": "\u0000\u0000\u0000\u0000\u0087\u0078"
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{
"a": 10,
"b": big.NewRat(1734, 5),
},
},
{
name: "Record Writer Field Missing With Enum Duration Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "int"},
{
"name": "b",
"type": {
"type": "enum",
"name": "test.enum",
"symbols": ["foo", "bar"]
},
"default": "bar"
}
]
}`,
writer: `{"type":"record", "name":"test", "namespace": "org.hamba.avro", "fields":[{"name": "a", "type": "int"}]}`,
value: map[string]any{"a": 10},
want: map[string]any{
"a": 10,
"b": "bar",
},
},
{
name: "Record Writer Field Missing With Ref Default",
reader: `{
"type": "record",
"name": "parent",
"namespace": "org.hamba.avro",
"fields": [
{
"name": "a",
"type": {
"type": "record",
"name": "embed",
"namespace": "org.hamba.avro",
"fields": [{
"name": "a",
"type": "long"
}]
}
},
{
"name": "b",
"type": "embed",
"default": {"a": 20}
}
]
}`,
writer: `{
"type": "record",
"name": "parent",
"namespace": "org.hamba.avro",
"fields": [
{
"name": "a",
"type": {
"type": "record",
"name": "embed",
"namespace": "org.hamba.avro",
"fields": [{
"name": "a",
"type": "long"
}]
}
}
]
}`,
value: map[string]any{"a": map[string]any{"a": int64(10)}},
want: map[string]any{
"a": map[string]any{"a": int64(10)},
"b": map[string]any{"a": int64(20)},
},
},
{
name: "Record Writer Field Missing With Long timestamp-millis Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "string"},
{
"name": "b",
"type": {
"type": "long",
"logicalType": "timestamp-millis"
},
"default": ` + strconv.FormatInt(1725616800000, 10) + `
}
]
}`,
writer: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "string"}
]
}`,
value: map[string]any{"a": "foo"},
want: map[string]any{
"a": "foo",
"b": time.UnixMilli(1725616800000).UTC(), // 2024-09-06 10:00:00
},
},
{
name: "Record Writer Field Missing With Long timestamp-micros Default",
reader: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "string"},
{
"name": "b",
"type": {
"type": "long",
"logicalType": "timestamp-micros"
},
"default": ` + strconv.FormatInt(1725616800000000, 10) + `
}
]
}`,
writer: `{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "string"}
]
}`,
value: map[string]any{"a": "foo"},
want: map[string]any{
"a": "foo",
"b": time.UnixMicro(1725616800000000).UTC(), // 2024-09-06 10:00:00
},
},
}
for _, test := range tests {
test := test
t.Run(test.name, func(t *testing.T) {
t.Parallel()
r, err := avro.ParseWithCache(test.reader, "", &avro.SchemaCache{})
require.NoError(t, err)
w, err := avro.ParseWithCache(test.writer, "", &avro.SchemaCache{})
require.NoError(t, err)
sc := avro.NewSchemaCompatibility()
b, err := avro.Marshal(w, test.value)
assert.NoError(t, err)
sch, err := sc.Resolve(r, w)
assert.NoError(t, err)
var result any
err = avro.Unmarshal(sch, b, &result)
assert.NoError(t, err)
assert.Equal(t, test.want, result)
})
}
}
func TestSchemaCompatibility_ResolveWithRefs(t *testing.T) {
sch1 := avro.MustParse(`{
"type": "record",
"name": "test",
"fields" : [
{"name": "a", "type": "string"}
]
}`)
sch2 := avro.MustParse(`{
"type": "record",
"name": "test",
"fields" : [
{"name": "a", "type": "bytes"}
]
}`)
r := avro.NewRefSchema(sch1.(*avro.RecordSchema))
w := avro.NewRefSchema(sch2.(*avro.RecordSchema))
sc := avro.NewSchemaCompatibility()
value := map[string]any{"a": []byte("foo")}
b, err := avro.Marshal(w, value)
assert.NoError(t, err)
sch, err := sc.Resolve(r, w)
assert.NoError(t, err)
var result any
err = avro.Unmarshal(sch, b, &result)
assert.NoError(t, err)
want := map[string]any{"a": "foo"}
assert.Equal(t, want, result)
}
func TestSchemaCompatibility_ResolveWithComplexUnion(t *testing.T) {
r := avro.MustParse(`[
{
"type":"record",
"name":"testA",
"aliases": ["test1"],
"namespace": "org.hamba.avro",
"fields":[{"name": "a", "type": "long"}]
},
{
"type":"record",
"name":"testB",
"aliases": ["test2"],
"namespace": "org.hamba.avro",
"fields":[{"name": "b", "type": "bytes"}]
}
]`)
w := avro.MustParse(`{
"type":"record",
"name":"test2",
"namespace": "org.hamba.avro",
"fields":[{"name": "b", "type": "string"}]
}`)
value := map[string]any{"b": "foo"}
b, err := avro.Marshal(w, value)
assert.NoError(t, err)
sc := avro.NewSchemaCompatibility()
sch, err := sc.Resolve(r, w)
assert.NoError(t, err)
var result any
err = avro.Unmarshal(sch, b, &result)
assert.NoError(t, err)
want := map[string]any{"b": []byte("foo")}
assert.Equal(t, want, result)
}
func TestSchemaCompatibility_ResolveWithFieldMissingInWriterAndReaderStruct(t *testing.T) {
w := avro.MustParse(`{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "string"}
]
}`)
r := avro.MustParse(`{
"type":"record", "name":"test", "namespace": "org.hamba.avro",
"fields":[
{"name": "a", "type": "string"},
{"name": "b", "type": "int", "default": 10},
{"name": "c", "type": "string", "default": "foo"}
]
}`)
type TestW struct {
A string `avro:"a"`
}
value := TestW{A: "abc"}