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556 lines
14 KiB
556 lines
14 KiB
package schema
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import (
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"fmt"
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// TestSchemaEvolutionChecker_AvroBackwardCompatibility tests Avro backward compatibility
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func TestSchemaEvolutionChecker_AvroBackwardCompatibility(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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t.Run("Compatible - Add optional field", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"},
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{"name": "email", "type": "string", "default": ""}
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]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityBackward)
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require.NoError(t, err)
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assert.True(t, result.Compatible)
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assert.Empty(t, result.Issues)
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})
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t.Run("Incompatible - Remove field", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"},
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{"name": "email", "type": "string"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"}
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]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityBackward)
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require.NoError(t, err)
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assert.False(t, result.Compatible)
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assert.Contains(t, result.Issues[0], "Field 'email' was removed")
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})
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t.Run("Incompatible - Add required field", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"},
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{"name": "email", "type": "string"}
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]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityBackward)
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require.NoError(t, err)
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assert.False(t, result.Compatible)
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assert.Contains(t, result.Issues[0], "New required field 'email' added without default")
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})
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t.Run("Compatible - Type promotion", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "score", "type": "int"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "score", "type": "long"}
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]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityBackward)
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require.NoError(t, err)
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assert.True(t, result.Compatible)
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})
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}
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// TestSchemaEvolutionChecker_AvroForwardCompatibility tests Avro forward compatibility
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func TestSchemaEvolutionChecker_AvroForwardCompatibility(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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t.Run("Compatible - Remove optional field", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"},
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{"name": "email", "type": "string", "default": ""}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"}
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]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityForward)
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require.NoError(t, err)
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assert.False(t, result.Compatible) // Forward compatibility is stricter
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assert.Contains(t, result.Issues[0], "Field 'email' was removed")
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})
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t.Run("Incompatible - Add field without default in old schema", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"},
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{"name": "email", "type": "string", "default": ""}
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]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityForward)
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require.NoError(t, err)
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// This should be compatible in forward direction since new field has default
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// But our simplified implementation might flag it
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// The exact behavior depends on implementation details
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_ = result // Use the result to avoid unused variable error
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})
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}
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// TestSchemaEvolutionChecker_AvroFullCompatibility tests Avro full compatibility
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func TestSchemaEvolutionChecker_AvroFullCompatibility(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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t.Run("Compatible - Add optional field with default", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"},
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{"name": "email", "type": "string", "default": ""}
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]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityFull)
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require.NoError(t, err)
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assert.True(t, result.Compatible)
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})
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t.Run("Incompatible - Remove field", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"},
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{"name": "email", "type": "string"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"}
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]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityFull)
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require.NoError(t, err)
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assert.False(t, result.Compatible)
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assert.True(t, len(result.Issues) > 0)
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})
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}
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// TestSchemaEvolutionChecker_JSONSchemaCompatibility tests JSON Schema compatibility
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func TestSchemaEvolutionChecker_JSONSchemaCompatibility(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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t.Run("Compatible - Add optional property", func(t *testing.T) {
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oldSchema := `{
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"type": "object",
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"properties": {
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"id": {"type": "integer"},
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"name": {"type": "string"}
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},
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"required": ["id", "name"]
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}`
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newSchema := `{
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"type": "object",
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"properties": {
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"id": {"type": "integer"},
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"name": {"type": "string"},
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"email": {"type": "string"}
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},
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"required": ["id", "name"]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatJSONSchema, CompatibilityBackward)
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require.NoError(t, err)
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assert.True(t, result.Compatible)
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})
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t.Run("Incompatible - Add required property", func(t *testing.T) {
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oldSchema := `{
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"type": "object",
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"properties": {
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"id": {"type": "integer"},
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"name": {"type": "string"}
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},
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"required": ["id", "name"]
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}`
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newSchema := `{
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"type": "object",
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"properties": {
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"id": {"type": "integer"},
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"name": {"type": "string"},
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"email": {"type": "string"}
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},
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"required": ["id", "name", "email"]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatJSONSchema, CompatibilityBackward)
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require.NoError(t, err)
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assert.False(t, result.Compatible)
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assert.Contains(t, result.Issues[0], "New required field 'email'")
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})
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t.Run("Incompatible - Remove property", func(t *testing.T) {
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oldSchema := `{
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"type": "object",
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"properties": {
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"id": {"type": "integer"},
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"name": {"type": "string"},
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"email": {"type": "string"}
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},
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"required": ["id", "name"]
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}`
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newSchema := `{
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"type": "object",
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"properties": {
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"id": {"type": "integer"},
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"name": {"type": "string"}
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},
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"required": ["id", "name"]
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatJSONSchema, CompatibilityBackward)
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require.NoError(t, err)
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assert.False(t, result.Compatible)
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assert.Contains(t, result.Issues[0], "Property 'email' was removed")
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})
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}
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// TestSchemaEvolutionChecker_ProtobufCompatibility tests Protobuf compatibility
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func TestSchemaEvolutionChecker_ProtobufCompatibility(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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t.Run("Simplified Protobuf check", func(t *testing.T) {
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oldSchema := `syntax = "proto3";
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message User {
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int32 id = 1;
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string name = 2;
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}`
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newSchema := `syntax = "proto3";
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message User {
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int32 id = 1;
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string name = 2;
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string email = 3;
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}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatProtobuf, CompatibilityBackward)
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require.NoError(t, err)
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// Our simplified implementation marks as compatible with warning
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assert.True(t, result.Compatible)
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assert.Contains(t, result.Issues[0], "simplified")
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})
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}
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// TestSchemaEvolutionChecker_NoCompatibility tests no compatibility checking
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func TestSchemaEvolutionChecker_NoCompatibility(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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oldSchema := `{"type": "string"}`
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newSchema := `{"type": "integer"}`
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result, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityNone)
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require.NoError(t, err)
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assert.True(t, result.Compatible)
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assert.Empty(t, result.Issues)
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}
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// TestSchemaEvolutionChecker_TypePromotion tests type promotion rules
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func TestSchemaEvolutionChecker_TypePromotion(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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tests := []struct {
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from string
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to string
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promotable bool
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}{
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{"int", "long", true},
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{"int", "float", true},
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{"int", "double", true},
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{"long", "float", true},
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{"long", "double", true},
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{"float", "double", true},
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{"string", "bytes", true},
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{"bytes", "string", true},
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{"long", "int", false},
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{"double", "float", false},
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{"string", "int", false},
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}
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for _, test := range tests {
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t.Run(fmt.Sprintf("%s_to_%s", test.from, test.to), func(t *testing.T) {
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result := checker.isPromotableType(test.from, test.to)
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assert.Equal(t, test.promotable, result)
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})
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}
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}
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// TestSchemaEvolutionChecker_SuggestEvolution tests evolution suggestions
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func TestSchemaEvolutionChecker_SuggestEvolution(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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t.Run("Compatible schema", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string", "default": ""}
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]
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}`
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suggestions, err := checker.SuggestEvolution(oldSchema, newSchema, FormatAvro, CompatibilityBackward)
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require.NoError(t, err)
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assert.Contains(t, suggestions[0], "compatible")
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})
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t.Run("Incompatible schema with suggestions", func(t *testing.T) {
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"}
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]
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}`
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suggestions, err := checker.SuggestEvolution(oldSchema, newSchema, FormatAvro, CompatibilityBackward)
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require.NoError(t, err)
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assert.True(t, len(suggestions) > 0)
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// Should suggest not removing fields
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found := false
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for _, suggestion := range suggestions {
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if strings.Contains(suggestion, "deprecating") {
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found = true
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break
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}
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}
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assert.True(t, found)
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})
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}
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// TestSchemaEvolutionChecker_CanEvolve tests the CanEvolve method
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func TestSchemaEvolutionChecker_CanEvolve(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"}
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]
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}`
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newSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string", "default": ""}
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]
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}`
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result, err := checker.CanEvolve("user-topic", oldSchema, newSchema, FormatAvro)
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require.NoError(t, err)
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assert.True(t, result.Compatible)
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}
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// TestSchemaEvolutionChecker_ExtractFields tests field extraction utilities
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func TestSchemaEvolutionChecker_ExtractFields(t *testing.T) {
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checker := NewSchemaEvolutionChecker()
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t.Run("Extract Avro fields", func(t *testing.T) {
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schema := map[string]interface{}{
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"fields": []interface{}{
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map[string]interface{}{
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"name": "id",
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"type": "int",
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},
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map[string]interface{}{
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"name": "name",
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"type": "string",
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"default": "",
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},
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},
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}
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fields := checker.extractAvroFields(schema)
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assert.Len(t, fields, 2)
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assert.Contains(t, fields, "id")
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assert.Contains(t, fields, "name")
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assert.Equal(t, "int", fields["id"]["type"])
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assert.Equal(t, "", fields["name"]["default"])
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})
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t.Run("Extract JSON Schema required fields", func(t *testing.T) {
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schema := map[string]interface{}{
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"required": []interface{}{"id", "name"},
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}
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required := checker.extractJSONSchemaRequired(schema)
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assert.Len(t, required, 2)
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assert.Contains(t, required, "id")
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assert.Contains(t, required, "name")
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})
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t.Run("Extract JSON Schema properties", func(t *testing.T) {
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schema := map[string]interface{}{
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"properties": map[string]interface{}{
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"id": map[string]interface{}{"type": "integer"},
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"name": map[string]interface{}{"type": "string"},
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},
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}
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properties := checker.extractJSONSchemaProperties(schema)
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assert.Len(t, properties, 2)
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assert.Contains(t, properties, "id")
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assert.Contains(t, properties, "name")
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})
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}
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// BenchmarkSchemaCompatibilityCheck benchmarks compatibility checking performance
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func BenchmarkSchemaCompatibilityCheck(b *testing.B) {
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checker := NewSchemaEvolutionChecker()
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oldSchema := `{
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"type": "record",
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"name": "User",
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"fields": [
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{"name": "id", "type": "int"},
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{"name": "name", "type": "string"},
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{"name": "email", "type": "string", "default": ""}
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]
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}`
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newSchema := `{
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"type": "record",
|
|
"name": "User",
|
|
"fields": [
|
|
{"name": "id", "type": "int"},
|
|
{"name": "name", "type": "string"},
|
|
{"name": "email", "type": "string", "default": ""},
|
|
{"name": "age", "type": "int", "default": 0}
|
|
]
|
|
}`
|
|
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := checker.CheckCompatibility(oldSchema, newSchema, FormatAvro, CompatibilityBackward)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|