fatsify核心功能示例测试!!!

node_modules/fast-json-stringify/test/patternProperties.test.js

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+'use strict'
+
+const { test } = require('node:test')
+const build = require('..')
+
+test('patternProperties', (t) => {
+  t.plan(1)
+  const stringify = build({
+    title: 'patternProperties',
+    type: 'object',
+    properties: {
+      str: {
+        type: 'string'
+      }
+    },
+    patternProperties: {
+      foo: {
+        type: 'string'
+      }
+    }
+  })
+
+  const obj = { str: 'test', foo: 42, ofoo: true, foof: 'string', objfoo: { a: true }, notMe: false }
+  t.assert.equal(stringify(obj), '{"str":"test","foo":"42","ofoo":"true","foof":"string","objfoo":"[object Object]"}')
+})
+
+test('patternProperties should not change properties', (t) => {
+  t.plan(1)
+  const stringify = build({
+    title: 'patternProperties should not change properties',
+    type: 'object',
+    properties: {
+      foo: {
+        type: 'string'
+      }
+    },
+    patternProperties: {
+      foo: {
+        type: 'number'
+      }
+    }
+  })
+
+  const obj = { foo: '42', ofoo: 42 }
+  t.assert.equal(stringify(obj), '{"foo":"42","ofoo":42}')
+})
+
+test('patternProperties - string coerce', (t) => {
+  t.plan(1)
+  const stringify = build({
+    title: 'check string coerce',
+    type: 'object',
+    properties: {},
+    patternProperties: {
+      foo: {
+        type: 'string'
+      }
+    }
+  })
+
+  const obj = { foo: true, ofoo: 42, arrfoo: ['array', 'test'], objfoo: { a: 'world' } }
+  t.assert.equal(stringify(obj), '{"foo":"true","ofoo":"42","arrfoo":"array,test","objfoo":"[object Object]"}')
+})
+
+test('patternProperties - number coerce', (t) => {
+  t.plan(2)
+  const stringify = build({
+    title: 'check number coerce',
+    type: 'object',
+    properties: {},
+    patternProperties: {
+      foo: {
+        type: 'number'
+      }
+    }
+  })
+
+  const coercibleValues = { foo: true, ofoo: '42' }
+  t.assert.equal(stringify(coercibleValues), '{"foo":1,"ofoo":42}')
+
+  const incoercibleValues = { xfoo: 'string', arrfoo: [1, 2], objfoo: { num: 42 } }
+  try {
+    stringify(incoercibleValues)
+    t.fail('should throw an error')
+  } catch (err) {
+    t.assert.ok(err)
+  }
+})
+
+test('patternProperties - boolean coerce', (t) => {
+  t.plan(1)
+  const stringify = build({
+    title: 'check boolean coerce',
+    type: 'object',
+    properties: {},
+    patternProperties: {
+      foo: {
+        type: 'boolean'
+      }
+    }
+  })
+
+  const obj = { foo: 'true', ofoo: 0, arrfoo: [1, 2], objfoo: { a: true } }
+  t.assert.equal(stringify(obj), '{"foo":true,"ofoo":false,"arrfoo":true,"objfoo":true}')
+})
+
+test('patternProperties - object coerce', (t) => {
+  t.plan(1)
+  const stringify = build({
+    title: 'check object coerce',
+    type: 'object',
+    properties: {},
+    patternProperties: {
+      foo: {
+        type: 'object',
+        properties: {
+          answer: {
+            type: 'number'
+          }
+        }
+      }
+    }
+  })
+
+  const obj = { objfoo: { answer: 42 } }
+  t.assert.equal(stringify(obj), '{"objfoo":{"answer":42}}')
+})
+
+test('patternProperties - array coerce', (t) => {
+  t.plan(2)
+  const stringify = build({
+    title: 'check array coerce',
+    type: 'object',
+    properties: {},
+    patternProperties: {
+      foo: {
+        type: 'array',
+        items: {
+          type: 'string'
+        }
+      }
+    }
+  })
+
+  const coercibleValues = { arrfoo: [1, 2] }
+  t.assert.equal(stringify(coercibleValues), '{"arrfoo":["1","2"]}')
+
+  const incoercibleValues = { foo: 'true', ofoo: 0, objfoo: { tyrion: 'lannister' } }
+  t.assert.throws(() => stringify(incoercibleValues))
+})
+
+test('patternProperties - fail on invalid regex, handled by ajv', (t) => {
+  t.plan(1)
+
+  t.assert.throws(() => build({
+    title: 'check array coerce',
+    type: 'object',
+    properties: {},
+    patternProperties: {
+      'foo/\\': {
+        type: 'array',
+        items: {
+          type: 'string'
+        }
+      }
+    }
+  }), new Error('schema is invalid: data/patternProperties must match format "regex"'))
+})