Adding functional tests for all training scenarios

test/Microsoft.ML.Functional.Tests/Common.cs

@@ -9,6 +9,7 @@
 using Microsoft.ML.Data;
 using Microsoft.ML.Functional.Tests.Datasets;
 using Xunit;
+using Xunit.Sdk;
 
 namespace Microsoft.ML.Functional.Tests
 {
@@ -268,6 +269,33 @@ public static void AssertMetricsStatistics(RegressionMetricsStatistics metrics)
  AssertMetricStatistics(metrics.LossFunction);
  }
 
+ /// <summary>
+ /// Assert that two float arrays are not equal.
+ /// </summary>
+ /// <param name="array1">An array of floats.</param>
+ /// <param name="array2">An array of floats.</param>
+ public static void AssertNotEqual(float[] array1, float[] array2)
+ {
+ Assert.NotNull(array1);
+ Assert.NotNull(array2);
+ Assert.Equal(array1.Length, array2.Length);
+
+ bool mismatch = false;
+ for (int i = 0; i < array1.Length; i++)
+ try
+ {
+ // Use Assert to test for equality rather than
+ // to roll our own float equality checker.
+ Assert.Equal(array1[i], array2[i]);
+ }
+ catch(EqualException)
+ {
+ mismatch = true;
+ break;
+ }
+ Assert.True(mismatch);
+ }
+
  /// <summary>
  /// Verify that a float array has no NaNs or infinities.
  /// </summary>