stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/__Tests/StellaOps.ReachGraph.Cache.Tests/ReachGraphValkeyCacheSetTests.cs

@@ -0,0 +1,62 @@
+using Moq;
+using StackExchange.Redis;
+using StellaOps.TestKit;
+using Xunit;
+
+namespace StellaOps.ReachGraph.Cache.Tests;
+
+public sealed class ReachGraphValkeyCacheSetTests
+{
+    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+    public async Task SetAsyncStoresCompressedGraph()
+    {
+        var options = new ReachGraphCacheOptions { DefaultTtl = TimeSpan.FromMinutes(5) };
+        var harness = new ReachGraphValkeyCacheHarness("tenant-1", options);
+        var graph = ReachGraphValkeyCacheTestData.CreateGraph("sha256:graph");
+
+        harness.Database
+            .Setup(db => db.StringSetAsync(
+                It.IsAny<RedisKey>(),
+                It.IsAny<RedisValue>(),
+                It.IsAny<TimeSpan?>(),
+                It.IsAny<When>(),
+                It.IsAny<CommandFlags>()))
+            .ReturnsAsync(true);
+
+        await harness.Cache.SetAsync("sha256:graph", graph, ttl: TimeSpan.FromMinutes(2));
+
+        var invocation = Assert.Single(harness.Database.Invocations, i => i.Method.Name == "StringSetAsync");
+        var key = (RedisKey)invocation.Arguments[0]!;
+        var storedValue = (RedisValue)invocation.Arguments[1]!;
+        var stored = (byte[]?)storedValue;
+        var ttl = (Expiration)invocation.Arguments[2]!;
+        var json = harness.Serializer.SerializeMinimal(graph);
+        Assert.NotNull(stored);
+        var decompressed = ReachGraphValkeyCacheTestData.Decompress(stored);
+
+        Assert.Equal("reachgraph:tenant-1:sha256:graph", key.ToString());
+        Assert.Equal((Expiration)TimeSpan.FromMinutes(2), ttl);
+        Assert.Equal(json, decompressed);
+    }
+
+    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+    public async Task SetAsyncSkipsWhenGraphTooLarge()
+    {
+        var options = new ReachGraphCacheOptions { MaxGraphSizeBytes = 1 };
+        var harness = new ReachGraphValkeyCacheHarness("tenant-1", options);
+        var graph = ReachGraphValkeyCacheTestData.CreateGraph("sha256:graph");
+
+        await harness.Cache.SetAsync("sha256:graph", graph);
+
+        harness.Database.Verify(
+            db => db.StringSetAsync(
+                It.IsAny<RedisKey>(),
+                It.IsAny<RedisValue>(),
+                It.IsAny<TimeSpan?>(),
+                It.IsAny<When>(),
+                It.IsAny<CommandFlags>()),
+            Times.Never);
+    }
+}