From 2f8054c1fac7c53b6533bf4a0283d45c01b6f8e8 Mon Sep 17 00:00:00 2001
From: Julia Friesel <julia.friesel@gmail.com>
Date: Tue, 3 Jul 2018 11:14:40 +0200
Subject: [PATCH] Add mucus shift detection
---
lib/sympto/index.js | 5 ++++
lib/sympto/mucus.js | 19 +++++++++++++++
test/sympto/mucus.spec.js | 49 +++++++++++++++++++++++++++++++++++++++
3 files changed, 73 insertions(+)
create mode 100644 lib/sympto/mucus.js
create mode 100644 test/sympto/mucus.spec.js
diff --git a/lib/sympto/index.js b/lib/sympto/index.js
index 92f513dd..3fd01021 100644
--- a/lib/sympto/index.js
+++ b/lib/sympto/index.js
@@ -4,4 +4,9 @@ import getMucusStatus from './mucus'
export default function (cycleDays) {
const temperatureStatus = getTemperatureStatus(cycleDays)
const mucusStatus = getMucusStatus(cycleDays)
+ return {
+ assumeFertility: true,
+ temperatureStatus,
+ mucusStatus
+ }
}
\ No newline at end of file
diff --git a/lib/sympto/mucus.js b/lib/sympto/mucus.js
new file mode 100644
index 00000000..f9c0d821
--- /dev/null
+++ b/lib/sympto/mucus.js
@@ -0,0 +1,19 @@
+export default function (cycleDays) {
+ const mucusDays = cycleDays.filter(day => day.mucus && !day.mucus.exclude)
+ const bestQuality = Math.max(...mucusDays.map(day => day.mucus.value))
+ const mucusPeak = mucusDays.find((day, i) => {
+ if (day.mucus.value !== bestQuality) return false
+
+ const threeFollowingDays = cycleDays.slice(i + 1, i + 4)
+ if (threeFollowingDays.length < 3) return false
+
+ return threeFollowingDays.every(day => day.mucus.value < bestQuality)
+ })
+
+ if (!mucusPeak) return { detected: false }
+
+ return {
+ detected: true,
+ mucusPeak
+ }
+}
diff --git a/test/sympto/mucus.spec.js b/test/sympto/mucus.spec.js
new file mode 100644
index 00000000..c0fd2da4
--- /dev/null
+++ b/test/sympto/mucus.spec.js
@@ -0,0 +1,49 @@
+import chai from 'chai'
+import getMucusStatus from '../../lib/sympto/mucus'
+
+const expect = chai.expect
+
+function turnIntoCycleDayObject(value, fakeDate) {
+ return {
+ mucus : { value },
+ date: fakeDate
+ }
+}
+
+describe('sympto', () => {
+ describe('detect mucus shift', () => {
+ describe('regular rule', () => {
+ it('detects mucus shift correctly', function () {
+ const values = [0, 0, 0, 1, 1, 2, 2, 2, 3, 3, 3, 2, 2, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0]
+ .map(turnIntoCycleDayObject)
+ const status = getMucusStatus(values)
+ expect(status).to.eql({
+ detected: true,
+ mucusPeak: {
+ date: 10,
+ mucus: { value: 3 }
+ }
+ })
+ })
+
+ it('detects no mucus shift when there are less than 3 days of lower quality', function () {
+ const values = [0, 1, 1, 2, 0, 0, 1, 2, 3, 2, 3, 3, 3, 2, 2]
+ .map(turnIntoCycleDayObject)
+ const status = getMucusStatus(values)
+ expect(status).to.eql({ detected: false })
+ })
+
+ it('detects no mucus shift when there are no mucus values', function () {
+ const status = getMucusStatus(Array(10).fill({date: 1, temperature: { value: 35}}))
+ expect(status).to.eql({ detected: false })
+ })
+
+ it('detects no mucus shift when the mucus values are all the same', function () {
+ const values = [2, 2, 2, 2, 2, 2, 2, 2]
+ .map(turnIntoCycleDayObject)
+ const status = getMucusStatus(values)
+ expect(status).to.eql({ detected: false })
+ })
+ })
+ })
+})
\ No newline at end of file
--
GitLab