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package com.yahoo.tensor.functions;
import com.yahoo.tensor.TensorType;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* Tests translation of composite to primitive tensor function translation.
*
* @author bratseth
*/
public class TensorFunctionTestCase {
@Test
public void testTranslation() {
assertTranslated("join({{x:1}:1.0}, reduce({{x:1}:1.0}, sum, x), f(a,b)(a / b))",
new L1Normalize(new ConstantTensor("{{x:1}:1.0}"), "x"));
assertTranslated("tensor(x[2],y[3],z[4])((x==y)*(y==z))",
new Diag(new TensorType.Builder().indexed("y",3).indexed("x",2).indexed("z",4).build()));
assertTranslated("join({{x:1}:1.0,{x:3}:5.0,{x:9}:3.0}, reduce({{x:1}:1.0,{x:3}:5.0,{x:9}:3.0}, max, x), f(a,b)(a==b))",
new Argmax(new ConstantTensor("{ {x:1}:1, {x:3}:5, {x:9}:3 }"), "x"));
}
private void assertTranslated(String expectedTranslation, TensorFunction inputFunction) {
assertEquals(expectedTranslation, inputFunction.toPrimitive().toString());
}
}
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