Unit Testing (#35)

* add testing lib

* remove coverage folder from git

* finished basic test setup

* fix tests typescript and import paths

* add first snapshot

* testing utils

* rename test files; update script flags; ++tests

* testing utils functions

* testing downloadAndResize wip

* remove download test

* specify unwanted coverage paths;
remove update snapshots flag

* fix strings tests

* testing downloadAndResize method

* increasing testing

* fixing snapshots wip

* fixed shell mobile snapshot

* adding snapshots for the screens

* fix onboard snapshot

* fix typescript issues

* fix TabsSelector snapshot

* Account for testing device's locale in ago() tests

* Remove platform detection on regex

* mocking store state wip

* mocking store state

* increasing test coverage

* increasing test coverage

* increasing test coverage on src/screens

* src/screens (except for profile) above 80% cov

* testing profile screen wip

* increase coverage on Menu and TabsSelector

* mocking profile ui state wip

* mocking profile ui state wip

* fixing mobileshell tests wip

* snapshots using testing-library

* fixing profile tests wip

* removing mobile shell tests

* src/view/com tests wip

* remove unnecessary patch-package

* fixed profile test error

* clear mocks after every test

* fix base mocked store values (getters)

* fix base mocked store values
(hasLoaded, nonReplyFeed)

* profile screen above 80% coverage

* testing custom hooks

* improving composer coverage

* fix tests after merge

* finishing composer coverage

* improving src/com/discover coverage

* improve src/view/com/login coverage
fix SuggestedFollows tests
adding some comments

* fix SuggestedFollows tests

* improve src/view/com/profile coverage
extra minor fixes

* improve src/view/com/notifications coverage

* update coverage ignore patterns

* rename errorMessageTryAgainButton
increase SuggestedFollows converage

* improve src/view/com/posts coverage

* improve src/view/com/onboard coverage

* update snapshot

* improve src/view/com/post coverage

* improve src/view/com/post-thread coverage
rename ErrorMessage tests
test Debug and Log components

* init testing state

* testing root-store

* updating comments

* small fixes

* removed extra console logs

* improve src/state/models coverage
refactor rootStore
rename some spies

* adding cleanup method after tests

* improve src/state/models coverage

* improve src/state/models coverage

* improve src/state/models coverage

* improve src/state/models coverage

* test setInterval in setupState

* Clean up tests and update Home screen state management

* Remove some tests we dont need

* Remove snapshot tests

* Remove any tests that dont demonstrate clear value

* Cleanup

Co-authored-by: Paul Frazee <pfrazee@gmail.com>

src/view/shell/mobile/Menu.tsx

@@ -75,6 +75,7 @@ export const Menu = observer(
       onPress?: () => void
     }) => (
       <TouchableOpacity
+        testID="menuItemButton"
         style={styles.menuItem}
         onPress={onPress ? onPress : () => onNavigate(url || '/')}>
         <View style={[styles.menuItemIconWrapper]}>
@@ -98,8 +99,9 @@ export const Menu = observer(
     )
 
     return (
-      <ScrollView style={[styles.view, pal.view]}>
+      <ScrollView testID="menuView" style={[styles.view, pal.view]}>
         <TouchableOpacity
+          testID="profileCardButton"
           onPress={() => onNavigate(`/profile/${store.me.handle}`)}
           style={styles.profileCard}>
           <UserAvatar
@@ -123,6 +125,7 @@ export const Menu = observer(
           </View>
         </TouchableOpacity>
         <TouchableOpacity
+          testID="searchBtn"
           style={[styles.searchBtn, pal.btn]}
           onPress={() => onNavigate('/search')}>
           <MagnifyingGlassIcon

src/view/shell/mobile/TabsSelector.tsx

@@ -116,11 +116,12 @@ export const TabsSelector = observer(
     }
 
     if (!active) {
-      return <View />
+      return <View testID="emptyView" />
     }
 
     return (
       <Animated.View
+        testID="tabsSelectorView"
         style={[
           styles.wrapper,
           {bottom: insets.bottom + 55},
@@ -129,7 +130,9 @@ export const TabsSelector = observer(
         <View onLayout={onLayout}>
           <View style={[s.p10, styles.section]}>
             <View style={styles.btns}>
-              <TouchableWithoutFeedback onPress={onPressShareTab}>
+              <TouchableWithoutFeedback
+                testID="shareButton"
+                onPress={onPressShareTab}>
                 <View style={[styles.btn]}>
                   <View style={styles.btnIcon}>
                     <FontAwesomeIcon size={16} icon="share" />
@@ -137,7 +140,9 @@ export const TabsSelector = observer(
                   <Text style={styles.btnText}>Share</Text>
                 </View>
               </TouchableWithoutFeedback>
-              <TouchableWithoutFeedback onPress={onPressCloneTab}>
+              <TouchableWithoutFeedback
+                testID="cloneButton"
+                onPress={onPressCloneTab}>
                 <View style={[styles.btn]}>
                   <View style={styles.btnIcon}>
                     <FontAwesomeIcon size={16} icon={['far', 'clone']} />
@@ -145,7 +150,9 @@ export const TabsSelector = observer(
                   <Text style={styles.btnText}>Clone tab</Text>
                 </View>
               </TouchableWithoutFeedback>
-              <TouchableWithoutFeedback onPress={onPressNewTab}>
+              <TouchableWithoutFeedback
+                testID="newTabButton"
+                onPress={onPressNewTab}>
                 <View style={[styles.btn]}>
                   <View style={styles.btnIcon}>
                     <FontAwesomeIcon size={16} icon="plus" />
@@ -164,6 +171,7 @@ export const TabsSelector = observer(
                 return (
                   <Swipeable
                     key={tab.id}
+                    testID="tabsSwipable"
                     renderLeftActions={renderSwipeActions}
                     renderRightActions={renderSwipeActions}
                     leftThreshold={100}
@@ -185,6 +193,7 @@ export const TabsSelector = observer(
                           isActive && styles.active,
                         ]}>
                         <TouchableWithoutFeedback
+                          testID="changeTabButton"
                           onPress={() => onPressChangeTab(tabIndex)}>
                           <View style={styles.tabInner}>
                             <View style={styles.tabIcon}>
@@ -203,6 +212,7 @@ export const TabsSelector = observer(
                           </View>
                         </TouchableWithoutFeedback>
                         <TouchableWithoutFeedback
+                          testID="closeTabButton"
                           onPress={() => onCloseTab(tabIndex)}>
                           <View style={styles.tabClose}>
                             <FontAwesomeIcon

src/view/shell/mobile/index.tsx

@@ -327,7 +327,7 @@ export const MobileShell: React.FC = observer(() => {
         start={{x: 0, y: 0.8}}
         end={{x: 0, y: 1}}
         style={styles.outerContainer}>
-        <SafeAreaView style={styles.innerContainer}>
+        <SafeAreaView testID="noSessionView" style={styles.innerContainer}>
           <ErrorBoundary>
             <Login />
           </ErrorBoundary>
@@ -338,7 +338,7 @@ export const MobileShell: React.FC = observer(() => {
   }
   if (store.onboard.isOnboarding) {
     return (
-      <View style={styles.outerContainer}>
+      <View testID="onboardOuterView" style={styles.outerContainer}>
         <View style={styles.innerContainer}>
           <ErrorBoundary>
             <Onboard />
@@ -355,7 +355,7 @@ export const MobileShell: React.FC = observer(() => {
     backgroundColor: theme.colorScheme === 'dark' ? colors.gray7 : colors.gray1,
   }
   return (
-    <View style={[styles.outerContainer, pal.view]}>
+    <View testID="mobileShellView" style={[styles.outerContainer, pal.view]}>
       <StatusBar
         barStyle={
           theme.colorScheme === 'dark' ? 'light-content' : 'dark-content'