| /* |
| * Copyright 2019, Verizon Media. |
| * Licensed under the terms of the Apache License 2.0. See LICENSE file at the project root for terms. |
| */ |
| |
| package com.yahoo.sketches.pig.cpc; |
| |
| import org.apache.pig.EvalFunc; |
| import org.apache.pig.data.DataByteArray; |
| import org.apache.pig.data.DataType; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.data.TupleFactory; |
| import org.apache.pig.impl.logicalLayer.schema.Schema; |
| |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| import com.yahoo.sketches.cpc.CpcSketch; |
| |
| public class GetEstimateAndErrorBoundsTest { |
| |
| private static final TupleFactory TUPLE_FACTORY = TupleFactory.getInstance(); |
| |
| @Test |
| public void nullInputTuple() throws Exception { |
| final EvalFunc<Tuple> func = new GetEstimateAndErrorBounds(); |
| final Tuple result = func.exec(null); |
| Assert.assertNull(result); |
| } |
| |
| @Test |
| public void emptyInputTuple() throws Exception { |
| final EvalFunc<Tuple> func = new GetEstimateAndErrorBounds(); |
| final Tuple result = func.exec(TUPLE_FACTORY.newTuple()); |
| Assert.assertNull(result); |
| } |
| |
| @Test |
| public void normalCase() throws Exception { |
| final EvalFunc<Tuple> func = new GetEstimateAndErrorBounds(); |
| final CpcSketch sketch = new CpcSketch(); |
| sketch.update(1); |
| sketch.update(2); |
| Tuple result = func.exec(TUPLE_FACTORY.newTuple(new DataByteArray(sketch.toByteArray()))); |
| Assert.assertNotNull(result); |
| Assert.assertEquals((Double) result.get(0), 2.0, 0.01); |
| Assert.assertTrue((Double) result.get(1) <= 2.0); |
| Assert.assertTrue((Double) result.get(2) >= 2.0); |
| } |
| |
| @Test |
| public void normalCaseWithKappa() throws Exception { |
| final EvalFunc<Tuple> func = new GetEstimateAndErrorBounds("1"); |
| final CpcSketch sketch = new CpcSketch(); |
| sketch.update(1); |
| sketch.update(2); |
| Tuple result = func.exec(TUPLE_FACTORY.newTuple(new DataByteArray(sketch.toByteArray()))); |
| Assert.assertNotNull(result); |
| Assert.assertEquals((Double) result.get(0), 2.0, 0.01); |
| Assert.assertTrue((Double) result.get(1) <= 2.0); |
| Assert.assertTrue((Double) result.get(2) >= 2.0); |
| } |
| |
| @Test |
| public void normalCaseWithKappaAndSeed() throws Exception { |
| final EvalFunc<Tuple> func = new GetEstimateAndErrorBounds("3", "123"); |
| final CpcSketch sketch = new CpcSketch(12, 123); |
| sketch.update(1); |
| sketch.update(2); |
| Tuple result = func.exec(TUPLE_FACTORY.newTuple(new DataByteArray(sketch.toByteArray()))); |
| Assert.assertNotNull(result); |
| Assert.assertEquals((Double) result.get(0), 2.0, 0.01); |
| Assert.assertTrue((Double) result.get(1) <= 2.0); |
| Assert.assertTrue((Double) result.get(2) >= 2.0); |
| } |
| |
| @Test |
| public void schema() throws Exception { |
| EvalFunc<Tuple> func = new GetEstimateAndErrorBounds(); |
| Schema inputSchema = new Schema(new Schema.FieldSchema("Sketch", DataType.BYTEARRAY)); |
| Schema outputSchema = func.outputSchema(inputSchema); |
| Assert.assertNotNull(outputSchema); |
| Assert.assertEquals(outputSchema.size(), 1); |
| Assert.assertEquals(DataType.findTypeName(outputSchema.getField(0).type), "tuple"); |
| Schema innerSchema = outputSchema.getField(0).schema; |
| Assert.assertEquals(innerSchema.size(), 3); |
| Assert.assertEquals(DataType.findTypeName(innerSchema.getField(0).type), "double"); |
| Assert.assertEquals(DataType.findTypeName(innerSchema.getField(1).type), "double"); |
| Assert.assertEquals(DataType.findTypeName(innerSchema.getField(2).type), "double"); |
| } |
| |
| } |