PersistentHighTest: ensure readings table is empty between tests

Author: jamorham

app/src/test/java/com/eveningoutpost/dexdrip/evaluators/PersistentHighTest.java

@@ -32,6 +32,7 @@ public void dataQualityCheckTest() {
         assertWithMessage("Predating sensor should fail").that(PersistentHigh.dataQualityCheck(1000, HIGH_MARK)).isFalse();
         assertWithMessage("Post sensor start no data should fail").that(PersistentHigh.dataQualityCheck(JoH.tsl(), HIGH_MARK)).isFalse();
 
+        BgReading.deleteALL();
         Sensor.create(START_TIME);
         // various all high time slices
         for (int i = 0; i < (12 * 4); i++) {
@@ -43,6 +44,7 @@ public void dataQualityCheckTest() {
         }
 
         START_TIME++;
+        BgReading.deleteALL();
         Sensor.create(START_TIME);
         // single dipped point in sequence after a point we might have succeeded
         for (int i = 0; i < (12 * 4); i++) {
@@ -54,6 +56,7 @@ public void dataQualityCheckTest() {
         }
 
         START_TIME++;
+        BgReading.deleteALL();
         Sensor.create(START_TIME);
         // single dipped point in sequence before we would succeed
         for (int i = 0; i < (12 * 4); i++) {