fix(runtime-core): test cases for mixing composition/options api

packages/runtime-core/apiMixed.spec.ts

@@ -0,0 +1,86 @@
+import { defineComponent, h, renderToString } from '@vue/runtime-test'
+
+describe('api: options', () => {
+  test('mix api options: setup and data with created', () => {
+    const mixinA = defineComponent({
+      setup() {
+        return {
+          a: 'from setup',
+        }
+      },
+      data() {
+        return {
+          a: 'from data',
+        }
+      },
+      created(this: any) {
+        this.a = 'from created'
+      },
+      render() {
+        return `${this.a}`
+      },
+    })
+    expect(renderToString(h(mixinA))).toBe(`from created`)
+  })
+
+  test('mix api options: data and setup with created', () => {
+    const mixinA = defineComponent({
+      data() {
+        return {
+          a: 'from data',
+        }
+      },
+      setup() {
+        return {
+          a: 'from setup',
+        }
+      },
+      created(this: any) {
+        this.a = 'from created'
+      },
+      render() {
+        return `${this.a}`
+      },
+    })
+    expect(renderToString(h(mixinA))).toBe(`from created`)
+  })
+
+  test('mix api options: data and setup', () => {
+    const mixinA = defineComponent({
+      data() {
+        return {
+          a: 'from data',
+        }
+      },
+      setup() {
+        return {
+          a: 'from setup',
+        }
+      },
+      created(this: any) {},
+      render() {
+        return `${this.a}`
+      },
+    })
+    expect(renderToString(h(mixinA))).toBe(`from setup`)
+  })
+
+  test('mix api options: setup and data', () => {
+    const mixinA = defineComponent({
+      setup() {
+        return {
+          a: 'from setup',
+        }
+      },
+      data() {
+        return {
+          a: 'from data',
+        }
+      },
+      render() {
+        return `${this.a}`
+      },
+    })
+    expect(renderToString(h(mixinA))).toBe(`from setup`)
+  })
+})