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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.tensor;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author geirst
* @author bratseth
*/
public class TensorTypeTestCase {
@Test
public void requireThatAnEmptyTensorTypeCanBeSpecified() {
assertTensorType("tensor()");
}
@Test
public void requireThatBoundIndexedDimensionsCanBeSpecified() {
assertTensorType("tensor(x[5])");
assertTensorType("tensor(x[5],y[10],z[100])");
assertTensorType("tensor(x[5],y[10],z[100])", "tensor( x[5] , y[10] , z[100] )");
assertTensorType("tensor(baR_09[10])");
}
@Test
public void requireThatUnboundIndexedDimensionsCanBeSpecified() {
assertTensorType("tensor(x[])");
assertTensorType("tensor(x[],y[],z[])");
assertTensorType("tensor(x[],y[],z[])", "tensor( x[] , y[] , z[] )");
assertTensorType("tensor(baR_09[])");
}
@Test
public void requireThatMappedDimensionsCanBeSpecified() {
assertTensorType("tensor(x{})");
assertTensorType("tensor(x{},y{},z{})");
assertTensorType("tensor(x{},y{},z{})", "tensor( x{} , y{} , z{} )");
assertTensorType("tensor(baR_09{})");
}
@Test
public void requireThatIndexedBoundDimensionMustHaveNonZeroSize() {
assertIllegalTensorType("tensor(x[0])", "Size of bound dimension 'x' must be at least 1");
}
@Test
public void requireThatDimensionsMustHaveUniqueNames() {
assertIllegalTensorType("tensor(x[10],y[20],x[30])", "Could not add dimension x[30] as this dimension is already present");
assertIllegalTensorType("tensor(x{},y{},x{})", "Could not add dimension x{} as this dimension is already present");
}
@Test
public void requireThatIllegalSyntaxInSpecThrowsException() {
assertIllegalTensorType("foo(x[10])", "but was 'foo(x[10])'.");
assertIllegalTensorType("tensor(x_@[10])", "Dimension 'x_@[10]' is on the wrong format");
assertIllegalTensorType("tensor(x[10a])", "Dimension 'x[10a]' is on the wrong format");
assertIllegalTensorType("tensor(x{10})", "Dimension 'x{10}' is on the wrong format");
assertIllegalTensorType("tensor<(x{})", " Value type spec must be enclosed in <>");
assertIllegalTensorType("tensor<>(x{})", "Value type must be");
assertIllegalTensorType("tensor<notavalue>(x{})", "Value type must be");
}
@Test
public void testAssignableTo() {
assertIsAssignableTo("tensor(x[])", "tensor(x[])");
assertUnassignableTo("tensor(x[])", "tensor(y[])");
assertIsAssignableTo("tensor(x[10])", "tensor(x[])");
assertUnassignableTo("tensor(x[])", "tensor(x[10])");
assertUnassignableTo("tensor(x[10])", "tensor(x[5])");
assertUnassignableTo("tensor(x[5])", "tensor(x[10])");
assertUnassignableTo("tensor(x{})", "tensor(x[])");
assertIsAssignableTo("tensor(x{},y[10])", "tensor(x{},y[])");
}
@Test
public void testConvertibleTo() {
assertIsConvertibleTo("tensor(x[])", "tensor(x[])");
assertUnconvertibleTo("tensor(x[])", "tensor(y[])");
assertIsConvertibleTo("tensor(x[10])", "tensor(x[])");
assertUnconvertibleTo("tensor(x[])", "tensor(x[10])");
assertUnconvertibleTo("tensor(x[10])", "tensor(x[5])");
assertIsConvertibleTo("tensor(x[5])", "tensor(x[10])"); // Different from assignable
assertUnconvertibleTo("tensor(x{})", "tensor(x[])");
assertIsConvertibleTo("tensor(x{},y[10])", "tensor(x{},y[])");
}
@Test
public void testValueType() {
assertValueType(TensorType.Value.DOUBLE, "tensor(x[])");
assertValueType(TensorType.Value.DOUBLE, "tensor<double>(x[])");
assertValueType(TensorType.Value.FLOAT, "tensor<float>(x[])");
assertValueType(TensorType.Value.BFLOAT16, "tensor<bfloat16>(x[])");
assertValueType(TensorType.Value.INT8, "tensor<int8>(x[])");
assertEquals("tensor(x[])", TensorType.fromSpec("tensor<double>(x[])").toString());
assertEquals("tensor<float>(x[])", TensorType.fromSpec("tensor<float>(x[])").toString());
assertEquals("tensor<bfloat16>(x[])", TensorType.fromSpec("tensor<bfloat16>(x[])").toString());
assertEquals("tensor<int8>(x[])", TensorType.fromSpec("tensor<int8>(x[])").toString());
}
@Test
public void testIndexedSubtype() {
assertEquals(TensorType.fromSpec("tensor(x[10])"),
TensorType.fromSpec("tensor(x[10])").indexedSubtype());
assertEquals(TensorType.fromSpec("tensor(x[10])"),
TensorType.fromSpec("tensor(x[10],a{})").indexedSubtype());
assertEquals(TensorType.fromSpec("tensor(x[10],y[5])"),
TensorType.fromSpec("tensor(x[10],y[5],a{},b{})").indexedSubtype());
assertEquals(TensorType.fromSpec("tensor()"),
TensorType.fromSpec("tensor(a{})").indexedSubtype());
}
@Test
public void testMappedSubtype() {
assertEquals(TensorType.fromSpec("tensor(a{})"),
TensorType.fromSpec("tensor(a{})").mappedSubtype());
assertEquals(TensorType.fromSpec("tensor(a{})"),
TensorType.fromSpec("tensor(x[10],a{})").mappedSubtype());
assertEquals(TensorType.fromSpec("tensor(a{},b{})"),
TensorType.fromSpec("tensor(x[10],y[5],a{},b{})").mappedSubtype());
assertEquals(TensorType.fromSpec("tensor()"),
TensorType.fromSpec("tensor(x[10])").mappedSubtype());
}
private static void assertTensorType(String typeSpec) {
assertTensorType(typeSpec, typeSpec);
}
private static void assertTensorType(String expected, String typeSpec) {
assertEquals(expected, TensorType.fromSpec(typeSpec).toString());
}
private static void assertIllegalTensorType(String typeSpec, String messageSubstring) {
try {
TensorType.fromSpec(typeSpec);
fail("Expected exception to be thrown with message: '" + messageSubstring + "'");
} catch (IllegalArgumentException e) {
assertTrue(e.getMessage().contains(messageSubstring));
}
}
private void assertIsAssignableTo(String specificType, String generalType) {
assertTrue(TensorType.fromSpec(specificType).isAssignableTo(TensorType.fromSpec(generalType)));
}
private void assertUnassignableTo(String specificType, String generalType) {
assertFalse(TensorType.fromSpec(specificType).isAssignableTo(TensorType.fromSpec(generalType)));
}
private void assertIsConvertibleTo(String specificType, String generalType) {
assertTrue(TensorType.fromSpec(specificType).isConvertibleTo(TensorType.fromSpec(generalType)));
}
private void assertUnconvertibleTo(String specificType, String generalType) {
assertFalse(TensorType.fromSpec(specificType).isConvertibleTo(TensorType.fromSpec(generalType)));
}
private void assertValueType(TensorType.Value expectedValueType, String tensorTypeSpec) {
assertEquals(expectedValueType, TensorType.fromSpec(tensorTypeSpec).valueType());
}
}
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