Change default value of float fields to not cause out of range

in certail providers

Author: alex-kulakov

Orm/Xtensive.Orm.Tests/Storage/FieldDefaultValueTest.cs

@@ -134,7 +134,7 @@ public class X : Entity
     [Field(DefaultValue = CodeRegistry.GuidDefaultValue)]
     public Guid FGuid { get; set; }
 
-    [Field(DefaultValue = float.MaxValue)]
+    [Field(DefaultValue = float.Epsilon)]
     public float FFloat { get; set; }
 
     [Field(DefaultValue = float.MaxValue)]
@@ -211,7 +211,7 @@ public class X : Entity
     [Field(DefaultValue = CodeRegistry.GuidDefaultValue)]
     public Guid? FNGuid { get; set; }
 
-    [Field(DefaultValue = float.MaxValue)]
+    [Field(DefaultValue = float.Epsilon)]
     public float? FNFloat { get; set; }
 
     [Field(DefaultValue = float.MaxValue)]
@@ -341,7 +341,7 @@ public void DefaultValuesTest()
           Assert.AreEqual(EUInt.Max, x.FEUInt);
           Assert.AreEqual(EULong.Max, x.FEULong);
           Assert.AreEqual(EUShort.Max, x.FEUShort);
-          Assert.AreEqual(float.MaxValue, x.FFloat);
+          Assert.AreEqual(float.Epsilon, x.FFloat);
           Assert.AreEqual(new Guid(CodeRegistry.GuidDefaultValue), x.FGuid);
           Assert.AreEqual(int.MaxValue, x.FInt);
           Assert.AreEqual(long.MaxValue, x.FLong);
@@ -367,7 +367,7 @@ public void DefaultValuesTest()
           Assert.AreEqual(EUInt.Max, x.FNEUInt);
           Assert.AreEqual(EULong.Max, x.FNEULong);
           Assert.AreEqual(EUShort.Max, x.FNEUShort);
-          Assert.AreEqual(float.MaxValue, x.FNFloat);
+          Assert.AreEqual(float.Epsilon, x.FNFloat);
           Assert.AreEqual(new Guid(CodeRegistry.GuidDefaultValue), x.FNGuid);
           Assert.AreEqual(int.MaxValue, x.FNInt);
           Assert.AreEqual(long.MaxValue, x.FNLong);