public void TestWithParameter()
{
var input = Variable.InputVariable(new int[] { 1 }, DataType.Float, "input", new Axis[] { Axis.DefaultBatchAxis() });
var exp = input + Constant.Scalar(DataType.Float, 1);
var sampler = new ExpressionSampler("value", exp, input, 3);
var batch = sampler.GetNextMinibatch();
var data = batch["value"];
CollectionAssert.AreEqual(data.Shape.Dimensions.ToArray(), new int[] { 1, 3 });
var ds = DataSourceFactory.FromValue(data);
CollectionAssert.AreEqual(ds.TypedData, new float[] { 1, 1, 1 });
batch = sampler.GetNextMinibatch();
data = batch["value"];
CollectionAssert.AreEqual(data.Shape.Dimensions.ToArray(), new int[] { 1, 3 });
ds = DataSourceFactory.FromValue(data);
CollectionAssert.AreEqual(ds.TypedData, new float[] { 2, 2, 2 });
batch = sampler.GetNextMinibatch();
data = batch["value"];
CollectionAssert.AreEqual(data.Shape.Dimensions.ToArray(), new int[] { 1, 3 });
ds = DataSourceFactory.FromValue(data);
CollectionAssert.AreEqual(ds.TypedData, new float[] { 3, 3, 3 });
}
public void TestWithoutParameter()
{
var exp = new Constant(new int[] { 2, 3 }, DataType.Float, 0) + Constant.Scalar(DataType.Float, 27);
var sampler = new ExpressionSampler("value", exp, null);
var batch = sampler.GetNextMinibatch();
Assert.AreEqual(batch.Features.Count, 1);
var data = batch["value"];
CollectionAssert.AreEqual(data.Shape.Dimensions.ToArray(), new int[] { 2, 3 });
var ds = DataSourceFactory.FromValue(data);
CollectionAssert.AreEqual(ds.TypedData, new float[] { 27, 27, 27, 27, 27, 27 });
}
