ScoreList: Fix interaction between SKIP and rolling sum

android/uhabits-core/src/main/java/org/isoron/uhabits/core/models/ScoreList.java

@@ -298,17 +298,19 @@ public abstract class ScoreList implements Iterable<Score>
                 double percentageCompleted = Math.min(1, rollingSum / 1000 / habit.getTargetValue());
                 previousValue = Score.compute(freq, previousValue, percentageCompleted);
             }
-            else if (checkmarkValues[offset] != Checkmark.SKIP)
+            else
             {
                 if (checkmarkValues[offset] == YES_MANUAL)
                     rollingSum += 1.0;
                 if (offset + denominator < checkmarkValues.length)
                     if (checkmarkValues[offset + denominator] == YES_MANUAL)
                         rollingSum -= 1.0;
-
+                if (checkmarkValues[offset] != SKIP)
+                {
                     double percentageCompleted = Math.min(1, rollingSum / numerator);
                     previousValue = Score.compute(freq, previousValue, percentageCompleted);
                 }
+            }
             scores.add(new Score(from.plus(i), previousValue));
         }
 

android/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreListTest.java

@@ -20,7 +20,6 @@
 package org.isoron.uhabits.core.models;
 
 import org.isoron.uhabits.core.*;
-import org.isoron.uhabits.core.test.*;
 import org.isoron.uhabits.core.utils.*;
 import org.junit.*;
 
@@ -119,13 +118,7 @@ public class ScoreListTest extends BaseUnitTest
             0.000000
         };
 
-        ScoreList scores = habit.getScores();
-        Timestamp current = DateUtils.getToday();
-        for (double expectedValue : expectedValues)
-        {
-            assertThat(scores.getValue(current), closeTo(expectedValue, E));
-            current = current.minus(1);
-        }
+        checkScoreValues(expectedValues);
     }
 
     @Test
@@ -162,13 +155,26 @@ public class ScoreListTest extends BaseUnitTest
                 0.000000
         };
 
-        ScoreList scores = habit.getScores();
-        Timestamp current = DateUtils.getToday();
-        for (double expectedValue : expectedValues)
-        {
-            assertThat(scores.getValue(current), closeTo(expectedValue, E));
-            current = current.minus(1);
+        checkScoreValues(expectedValues);
     }
+
+    @Test
+    public void test_getValueWithSkip2()
+    {
+        toggle(5);
+        addSkip(4);
+
+        double[] expectedValues = {
+                0.041949,
+                0.044247,
+                0.046670,
+                0.049226,
+                0.051922,
+                0.051922,
+                0.0
+        };
+
+        checkScoreValues(expectedValues);
     }
 
     @Test
@@ -349,4 +355,15 @@ public class ScoreListTest extends BaseUnitTest
         Timestamp today = DateUtils.getToday();
         reps.toggle(today.minus(day), Checkmark.SKIP);
     }
+
+    private void checkScoreValues(double[] expectedValues)
+    {
+        Timestamp current = DateUtils.getToday();
+        ScoreList scores = habit.getScores();
+        for (double expectedValue : expectedValues)
+        {
+            assertThat(scores.getValue(current), closeTo(expectedValue, E));
+            current = current.minus(1);
+        }
+    }
 }