From f4796384fc1fb18577a1c2acb027953ee6dc2988 Mon Sep 17 00:00:00 2001
From: Lachlan Miller <lachlan.miller.1990@outlook.com>
Date: Mon, 21 Jun 2021 19:57:44 +1000
Subject: [PATCH 1/2] chore: fail to repro 1766

---
 test/resources/components/Form.vue        |  6 ++++++
 test/resources/components/LoginForm.vue   | 25 +++++++++++++++++++++++
 test/specs/mounting-options/slots.spec.js |  9 +++++++-
 3 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 test/resources/components/Form.vue
 create mode 100644 test/resources/components/LoginForm.vue

diff --git a/test/resources/components/Form.vue b/test/resources/components/Form.vue
new file mode 100644
index 000000000..2f97f4ce6
--- /dev/null
+++ b/test/resources/components/Form.vue
@@ -0,0 +1,6 @@
+<template>
+  <div>
+    Form
+    <slot />
+  </div>
+</template>
diff --git a/test/resources/components/LoginForm.vue b/test/resources/components/LoginForm.vue
new file mode 100644
index 000000000..4e0628502
--- /dev/null
+++ b/test/resources/components/LoginForm.vue
@@ -0,0 +1,25 @@
+<template>
+  <Form>
+    <template v-slot="{ username }">
+      <FormError :show="true" />
+    </template>
+  </Form>
+</template>
+
+<script>
+import Form from './Form.vue'
+
+export const FormError = {
+  props: ['show'],
+  render(h) {
+    return h('div', 'Form Error')
+  }
+}
+
+export default {
+  components: {
+    Form,
+    FormError
+  }
+}
+</script>
diff --git a/test/specs/mounting-options/slots.spec.js b/test/specs/mounting-options/slots.spec.js
index 3c2997def..42971c28b 100644
--- a/test/specs/mounting-options/slots.spec.js
+++ b/test/specs/mounting-options/slots.spec.js
@@ -5,7 +5,14 @@ import ComponentAsAClass from '~resources/components/component-as-a-class.vue'
 import ComponentWithParentName from '~resources/components/component-with-parent-name.vue'
 import { describeWithShallowAndMount, vueVersion } from '~resources/utils'
 import { itDoNotRunIf } from 'conditional-specs'
-import { mount, createLocalVue } from 'packages/test-utils/src'
+import LoginForm, { FormError } from '~resources/components/LoginForm.vue'
+import { mount, createLocalVue, shallowMount } from 'packages/test-utils/src'
+
+it('fails to reproduce https://github.com/vuejs/vue-test-utils/issues/1766', () => {
+  const localVue = createLocalVue()
+  const wrapper = shallowMount(LoginForm, { localVue })
+  expect(wrapper.findComponent(FormError).props('show')).toBeTruthy()
+})
 
 describeWithShallowAndMount('options.slots', mountingMethod => {
   it('mounts component with default slot if passed component in slot object', () => {

From 3ee6c9ba19691ac40ed3796ef553c84ee7a3fdb2 Mon Sep 17 00:00:00 2001
From: Lachlan Miller <lachlan.miller.1990@outlook.com>
Date: Mon, 21 Jun 2021 20:03:59 +1000
Subject: [PATCH 2/2] chore: update example

---
 test/resources/components/Form.vue        | 2 +-
 test/resources/components/LoginForm.vue   | 2 +-
 test/specs/mounting-options/slots.spec.js | 8 ++++----
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/test/resources/components/Form.vue b/test/resources/components/Form.vue
index 2f97f4ce6..5fe16ecc0 100644
--- a/test/resources/components/Form.vue
+++ b/test/resources/components/Form.vue
@@ -1,6 +1,6 @@
 <template>
   <div>
     Form
-    <slot />
+    <slot :username="'blah'" />
   </div>
 </template>
diff --git a/test/resources/components/LoginForm.vue b/test/resources/components/LoginForm.vue
index 4e0628502..d1d886345 100644
--- a/test/resources/components/LoginForm.vue
+++ b/test/resources/components/LoginForm.vue
@@ -1,7 +1,7 @@
 <template>
   <Form>
     <template v-slot="{ username }">
-      <FormError :show="true" />
+      <FormError :show="username" />
     </template>
   </Form>
 </template>
diff --git a/test/specs/mounting-options/slots.spec.js b/test/specs/mounting-options/slots.spec.js
index 42971c28b..3ff29d3c7 100644
--- a/test/specs/mounting-options/slots.spec.js
+++ b/test/specs/mounting-options/slots.spec.js
@@ -6,12 +6,12 @@ import ComponentWithParentName from '~resources/components/component-with-parent
 import { describeWithShallowAndMount, vueVersion } from '~resources/utils'
 import { itDoNotRunIf } from 'conditional-specs'
 import LoginForm, { FormError } from '~resources/components/LoginForm.vue'
-import { mount, createLocalVue, shallowMount } from 'packages/test-utils/src'
+import { mount, createLocalVue } from 'packages/test-utils/src'
 
-it('fails to reproduce https://github.com/vuejs/vue-test-utils/issues/1766', () => {
+it.only('fails to reproduce https://github.com/vuejs/vue-test-utils/issues/1766', () => {
   const localVue = createLocalVue()
-  const wrapper = shallowMount(LoginForm, { localVue })
-  expect(wrapper.findComponent(FormError).props('show')).toBeTruthy()
+  const wrapper = mount(LoginForm, { localVue })
+  expect(wrapper.findComponent(FormError).props('show')).toBe('blah')
 })
 
 describeWithShallowAndMount('options.slots', mountingMethod => {