Added a pause between indexing steps for shared embedding servers (#1114)

app/Tests/Tools/PauseRangeTests.cs

@@ -0,0 +1,72 @@
+using AIStudio.Settings.DataModel;
+using AIStudio.Tools.Services.Indexing;
+
+namespace AIStudio.Tests.Tools;
+
+/// <summary>
+/// Checks which bounds of the pause between two indexing steps apply, as the user set them and as configuration plugins lock them.
+/// </summary>
+[TestFixture]
+public sealed class PauseRangeTests
+{
+    [Test]
+    public void BoundsInOrderStayAsTheyAre()
+    {
+        Assert.That(PauseRange.GetEffective(10, false, 20, false), Is.EqualTo(new PauseRange(10, 20)));
+    }
+
+    [Test]
+    public void AnUpperBoundBelowTheLowerOneIsRaisedToIt()
+    {
+        Assert.That(PauseRange.GetEffective(60, false, 20, false), Is.EqualTo(new PauseRange(60, 60)));
+    }
+
+    [Test]
+    public void ALockedLowerBoundRaisesTheUpperOne()
+    {
+        Assert.That(PauseRange.GetEffective(60, true, 20, false), Is.EqualTo(new PauseRange(60, 60)));
+    }
+
+    [Test]
+    public void ALockedUpperBoundLowersTheLowerOne()
+    {
+        Assert.That(PauseRange.GetEffective(60, false, 20, true), Is.EqualTo(new PauseRange(20, 20)));
+    }
+
+    [Test]
+    public void BothBoundsLockedTheWrongWayRoundLetTheLongerPauseWin()
+    {
+        Assert.That(PauseRange.GetEffective(60, true, 20, true), Is.EqualTo(new PauseRange(60, 60)));
+    }
+
+    [Test]
+    public void BoundsOutsideTheAllowedRangeAreClamped()
+    {
+        Assert.That(PauseRange.GetEffective(-5, false, 1_000, false), Is.EqualTo(new PauseRange(0, DataDataSourceIndexing.MAX_PAUSE_BETWEEN_STEPS_SECONDS)));
+    }
+
+    [Test]
+    public void BoundsInOrderComeFromTheSettingsWithoutAskingForLocks()
+    {
+        var settings = new DataDataSourceIndexing
+        {
+            MinimumPauseBetweenStepsSeconds = 10,
+            MaximumPauseBetweenStepsSeconds = 20
+        };
+
+        Assert.That(PauseRange.FromSettings(settings), Is.EqualTo(new PauseRange(10, 20)));
+    }
+
+    [Test]
+    public void OnlyZeroForBothBoundsMeansNoPause()
+    {
+        Assert.Multiple(() =>
+        {
+            Assert.That(PauseRange.GetEffective(0, false, 0, false).IsNone, Is.True);
+            Assert.That(PauseRange.GetEffective(0, false, 5, false).IsNone, Is.False);
+            Assert.That(PauseRange.GetEffective(30, false, 0, false), Is.EqualTo(new PauseRange(30, 30)));
+            Assert.That(new DataDataSourceIndexing().MinimumPauseBetweenStepsSeconds, Is.Zero);
+            Assert.That(new DataDataSourceIndexing().MaximumPauseBetweenStepsSeconds, Is.Zero);
+        });
+    }
+}