Add mock for getCycleDay

bleeding.js

@@ -9,6 +9,7 @@ import styles from './styles'
 import { saveBleeding } from './db'
 import { formatDateForViewHeader } from './format'
 import { bleeding as labels } from './labels'
+import getCycleDay from './get-cycle-day'
 
 export default class Bleeding extends Component {
   constructor(props) {
@@ -27,6 +28,7 @@ export default class Bleeding extends Component {
     return (
       <View style={styles.container}>
         <Text style={styles.welcome}>{formatDateForViewHeader(day.date)}</Text>
+        <Text>Cycle day {getCycleDay()}</Text>
         <Text>Bleeding</Text>
         <Picker
           selectedValue={this.state.currentValue}

day-view.js

@@ -7,6 +7,7 @@ import {
 import styles from './styles'
 import { formatDateForViewHeader } from './format'
 import { bleeding as labels} from './labels'
+import getCycleDay from './get-cycle-day'
 
 export default class DayView extends Component {
   constructor(props) {
@@ -30,6 +31,7 @@ export default class DayView extends Component {
     return (
       <View style={styles.container}>
         <Text style={styles.welcome}>{formatDateForViewHeader(day.date)}</Text>
+        <Text>Cycle day {getCycleDay()}</Text>
         <Text style={styles.welcome}>{bleedingLabel}</Text>
         <Button
           onPress={() => navigate('bleeding', { cycleDay: day })}

get-cycle-day.js

@@ -0,0 +1 @@
+export default () => 6

home.js

@@ -5,6 +5,7 @@ import {
   Text
 } from 'react-native'
 import styles from './styles'
+import getCycleDay from './get-cycle-day'
 
 export default class Home extends Component {
   constructor(props) {
@@ -15,7 +16,7 @@ export default class Home extends Component {
     const navigate = this.props.navigation.navigate
     return (
       <View style={styles.container}>
-        <Text style={styles.welcome}>Welcome! Today is day 6 of your current cycle</Text>
+        <Text style={styles.welcome}>Welcome! Today is day {getCycleDay()} of your current cycle</Text>
         <Button
           onPress={() => navigate('temperatureList')}
           title="Edit symptoms for today">