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node_modules/@fastify/merge-json-schemas/test/format.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 format keyword', () => {
+  const schema1 = { type: 'string' }
+  const schema2 = { type: 'string', format: 'date-time' }
+
+  const mergedSchema = mergeSchemas([schema1, schema2], { defaultResolver })
+  assert.deepStrictEqual(mergedSchema, { type: 'string', format: 'date-time' })
+})
+
+test('should merge equal string format keywords', () => {
+  const schema1 = { type: 'string', format: 'date-time' }
+  const schema2 = { type: 'string', format: 'date-time' }
+
+  const mergedSchema = mergeSchemas([schema1, schema2], { defaultResolver })
+  assert.deepStrictEqual(mergedSchema, { type: 'string', format: 'date-time' })
+})
+
+test('should throw an error if format keyword values are different', () => {
+  const schema1 = { type: 'string', format: 'date-time' }
+  const schema2 = { type: 'string', format: 'date' }
+
+  assert.throws(() => {
+    mergeSchemas([schema1, schema2], { defaultResolver })
+  }, {
+    name: 'JsonSchemaMergeError',
+    code: 'JSON_SCHEMA_MERGE_ERROR',
+    message: 'Failed to merge "format" keyword schemas.',
+    schemas: ['date-time', 'date']
+  })
+})