tests(jest): moving away from ava - migrate to jest

.gitignore

@@ -3,3 +3,5 @@ node_modules
 npm-debug.log
 src/*.js
 test/*.js
+.rpt2_cache/*
+yarn-error.log

fixtures/emit.ts

@@ -0,0 +1,23 @@
+import Vue, { VNode } from 'vue';
+import { Component, Emit, Inject, Model, Prop, Provide, Watch } from '../src/nuxt-property-decorator';
+
+@Component
+export default class EmitFixture extends Vue {
+  count = 0;
+
+  @Emit('reset') resetCount() {
+    this.count = 0;
+  }
+
+  @Emit() increment(n: number) {
+    this.count += n;
+  }
+
+  @Emit() canceled() {
+    return false;
+  }
+
+  render (createElement: any): VNode {
+    return createElement('div');
+  }
+}

fixtures/inject.ts

@@ -0,0 +1,35 @@
+import Vue, { VNode } from 'vue';
+import { Component, Emit, Inject, Model, Prop, Provide, Watch } from '../src/nuxt-property-decorator';
+
+const s = Symbol()
+@Component({
+  provide() {
+    return {
+      [s]: 'one',
+      bar: 'two'
+    }
+  }
+})
+export class Parent extends Vue {
+  render (createElement: any): VNode {
+    return createElement('div');
+  }
+}
+
+@Component
+export class Child extends Vue {
+  @Inject(s) foo: string
+  @Inject() bar: string
+  render (createElement: any): VNode {
+    return createElement('div');
+  }
+}
+
+@Component
+export class GrandChild extends Vue {
+  @Inject(s) foo: string
+  @Inject() bar: string
+  render (createElement: any): VNode {
+    return createElement('div');
+  }
+}

fixtures/model.ts

@@ -0,0 +1,13 @@
+import Vue, { VNode } from 'vue';
+import { Component, Model } from '../src/nuxt-property-decorator';
+
+@Component({
+  name: 'test'
+})
+export default class ModelFixture extends Vue {
+  @Model('change')
+  checked: boolean;
+  render (createElement: any): VNode {
+    return createElement('div');
+  }
+}