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node_modules/@fastify/merge-json-schemas/test/enum.test.js

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+'use strict'
+
+const assert = require('node:assert/strict')
+const { test } = require('node:test')
+const { mergeSchemas } = require('../index')
+const { defaultResolver } = require('./utils')
+
+test('should merge empty schema and string enum values', () => {
+  const schema1 = { type: 'string' }
+  const schema2 = { type: 'string', enum: ['foo', 'bar'] }
+
+  const mergedSchema = mergeSchemas([schema1, schema2], { defaultResolver })
+  assert.deepStrictEqual(mergedSchema, { type: 'string', enum: ['foo', 'bar'] })
+})
+
+test('should merge equal string enum values', () => {
+  const schema1 = { type: 'string', enum: ['foo', 'bar'] }
+  const schema2 = { type: 'string', enum: ['foo', 'bar'] }
+
+  const mergedSchema = mergeSchemas([schema1, schema2], { defaultResolver })
+  assert.deepStrictEqual(mergedSchema, { type: 'string', enum: ['foo', 'bar'] })
+})
+
+test('should merge different string enum values', () => {
+  const schema1 = { type: 'string', enum: ['foo', 'bar'] }
+  const schema2 = { type: 'string', enum: ['foo', 'baz'] }
+
+  const mergedSchema = mergeSchemas([schema1, schema2], { defaultResolver })
+  assert.deepStrictEqual(mergedSchema, { type: 'string', enum: ['foo'] })
+})
+
+test('should throw an error if can not merge enum values', () => {
+  const schema1 = { type: 'string', enum: ['foo', 'bar'] }
+  const schema2 = { type: 'string', enum: ['baz', 'qux'] }
+
+  assert.throws(() => {
+    mergeSchemas([schema1, schema2], { defaultResolver })
+  }, {
+    name: 'JsonSchemaMergeError',
+    code: 'JSON_SCHEMA_MERGE_ERROR',
+    message: 'Failed to merge "enum" keyword schemas.',
+    schemas: [['foo', 'bar'], ['baz', 'qux']]
+  })
+})