microclimate data: LowBattery field & tests

thinking-home · Sep 29, 2017 · cd91583 · cd91583
1 parent 1d843be
commit cd91583
Show file tree

Hide file tree

Showing 2 changed files with 28 additions and 4 deletions.
diff --git a/ThinkingHome.NooLite.Tests/MicroclimateData/ParseTest.cs b/ThinkingHome.NooLite.Tests/MicroclimateData/ParseTest.cs
@@ -3,7 +3,7 @@
 namespace ThinkingHome.NooLite.Tests.MicroclimateData
 {
     using H = TestHelpers;
-    
+
     public class ParseTest
     {
         [Fact]
@@ -28,7 +28,7 @@ public void Parse_TwoByteTemperature_IsCorrect()
 
             Assert.Equal((decimal)27.5, data.Temperature);
         }
-        
+
         [Fact]
         public void Parse_NegativeTemperature_IsCorrect()
         {
@@ -45,7 +45,7 @@ public void Parse_NegativeTemperature_IsCorrect()
         public void Parse_Humidity_IsCorrect()
         {
             byte[] bytes = H.GetBytes()
-                .Set(8, 0b00100000) // bits 4-6 == 010 => PT111 
+                .Set(8, 0b00100000) // bits 4-6 == 010 => PT111
                 .Set(9, 0b00001101); // 13 - humidity value
 
             var data = new NooLite.MicroclimateData(bytes);
@@ -57,11 +57,33 @@ public void Parse_Humidity_IsCorrect()
         public void Parse_EmptyHumidity_IsCorrect()
         {
             byte[] bytes = H.GetBytes()
-                .Set(8, 0b00010000); // bits 4-6 == 001 => PT112 
+                .Set(8, 0b00010000); // bits 4-6 == 001 => PT112
 
             var data = new NooLite.MicroclimateData(bytes);
 
             Assert.Null(data.Humidity);
         }
+
+        [Fact]
+        public void Parse_PositiveLowBatteryStatus_IsCorrect()
+        {
+            byte[] bytes = H.GetBytes()
+                .Set(8, 0b00000000); // bits 7 == 0 => battery is ok
+
+            var data = new NooLite.MicroclimateData(bytes);
+
+            Assert.False(data.LowBattery);
+        }
+
+        [Fact]
+        public void Parse_NegativeLowBatteryStatus_IsCorrect()
+        {
+            byte[] bytes = H.GetBytes()
+                .Set(8, 0b10000000); // bits 7 == 1 => low battery
+
+            var data = new NooLite.MicroclimateData(bytes);
+
+            Assert.True(data.LowBattery);
+        }
     }
 }
diff --git a/ThinkingHome.NooLite/MicroclimateData.cs b/ThinkingHome.NooLite/MicroclimateData.cs
@@ -11,6 +11,8 @@ public MicroclimateData(byte[] data) : base(data)
         public decimal Temperature => ParseTemperature(Data1, Data2);
 
         public int? Humidity => ParseHumidity(Data2, Data3);
+
+        public bool LowBattery => Data2 >> 7 == 1;
 
         private static decimal ParseTemperature(byte data1, byte data2)
         {