Add weekly consistency goals

2026-08-01 04:14:39 -05:00
parent ecd5da9162
commit 300b230c03
16 changed files with 589 additions and 2 deletions
@@ -0,0 +1,51 @@
+using QuestionsApi.Models;
+using QuestionsApi.Services;
+using Xunit;
+
+namespace QuestionsApi.Tests;
+
+public sealed class WeeklyGoalPolicyTests
+{
+    [Theory]
+    [InlineData("2026-08-03", "2026-08-03")]
+    [InlineData("2026-08-09", "2026-08-03")]
+    [InlineData("2026-08-10", "2026-08-10")]
+    public void WeekStartsOnMondayUtc(string value, string expected) =>
+        Assert.Equal(DateTime.Parse(expected).Date, WeeklyGoalStore.WeekStart(DateTime.Parse(value)));
+
+    [Fact]
+    public void ActiveDaysAreDistinctUtcDates()
+    {
+        var values = new[]
+        {
+            new DateTime(2026, 8, 3, 1, 0, 0, DateTimeKind.Utc),
+            new DateTime(2026, 8, 3, 22, 0, 0, DateTimeKind.Utc),
+            new DateTime(2026, 8, 4, 1, 0, 0, DateTimeKind.Utc)
+        };
+        Assert.Equal(2, WeeklyGoalStore.CountActiveDays(values));
+    }
+
+    [Theory]
+    [InlineData(0, WeeklyRemediationTypes.HardCorrect, 5)]
+    [InlineData(4, WeeklyRemediationTypes.HardCorrect, 5)]
+    [InlineData(5, WeeklyRemediationTypes.Reviews, 5)]
+    [InlineData(25, WeeklyRemediationTypes.Reviews, 15)]
+    public void RemediationIsFeasibleAndCapped(int available, string type, int target) =>
+        Assert.Equal((type, target), WeeklyGoalStore.ChooseRemediation(available));
+
+    [Fact]
+    public void HardProgressRequiresCorrectEligibleDifficultyFourAttempt()
+    {
+        var system = Step3SystemCatalog.All[0];
+        var start = new DateTime(2026, 8, 3, 0, 0, 0, DateTimeKind.Utc);
+        var goal = new WeeklyGoal { WeekStartUtc = start, ExpiresUtc = start.AddDays(7), EligibleSystems = [system] };
+        var attempt = new QuestionAttempt { IsCorrect = true, CreatedUtc = start.AddDays(1) };
+        var question = new Question { Step3System = system, Difficulty = 4 };
+        Assert.True(WeeklyGoalStore.QualifiesHardAttempt(goal, attempt, question));
+        attempt.IsCorrect = false;
+        Assert.False(WeeklyGoalStore.QualifiesHardAttempt(goal, attempt, question));
+        attempt.IsCorrect = true;
+        question.Difficulty = 3;
+        Assert.False(WeeklyGoalStore.QualifiesHardAttempt(goal, attempt, question));
+    }
+}