/*
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.template.soy.basicfunctions;
import com.google.common.collect.ImmutableList;
import com.google.template.soy.data.SoyData;
import com.google.template.soy.data.restricted.FloatData;
import com.google.template.soy.data.restricted.IntegerData;
import com.google.template.soy.data.restricted.NumberData;
import com.google.template.soy.exprtree.Operator;
import com.google.template.soy.javasrc.restricted.JavaExpr;
import com.google.template.soy.jssrc.restricted.JsExpr;
import junit.framework.TestCase;
/**
* Unit tests for RoundFunction.
*
* @author Kai Huang
*/
public class RoundFunctionTest extends TestCase {
public void testComputeForTofu() {
RoundFunction roundFunction = new RoundFunction();
SoyData float0 = FloatData.forValue(9753.141592653590);
assertEquals(IntegerData.forValue(9753),
roundFunction.computeForTofu(ImmutableList.<SoyData>of(float0)));
SoyData numDigitsAfterPt = IntegerData.ZERO;
assertEquals(IntegerData.forValue(9753),
roundFunction.computeForTofu(ImmutableList.of(float0, numDigitsAfterPt)));
numDigitsAfterPt = IntegerData.forValue(4);
assertEquals(FloatData.forValue(9753.1416),
roundFunction.computeForTofu(ImmutableList.of(float0, numDigitsAfterPt)));
numDigitsAfterPt = IntegerData.forValue(-2);
assertEquals(IntegerData.forValue(9800),
roundFunction.computeForTofu(ImmutableList.of(float0, numDigitsAfterPt)));
}
public void testComputeForJsSrc() {
RoundFunction roundFunction = new RoundFunction();
JsExpr floatExpr = new JsExpr("FLOAT_JS_CODE", Integer.MAX_VALUE);
assertEquals(new JsExpr("Math.round(FLOAT_JS_CODE)", Integer.MAX_VALUE),
roundFunction.computeForJsSrc(ImmutableList.of(floatExpr)));
JsExpr numDigitsAfterPtExpr = new JsExpr("0", Integer.MAX_VALUE);
assertEquals(new JsExpr("Math.round(FLOAT_JS_CODE)", Integer.MAX_VALUE),
roundFunction.computeForJsSrc(
ImmutableList.of(floatExpr, numDigitsAfterPtExpr)));
numDigitsAfterPtExpr = new JsExpr("4", Integer.MAX_VALUE);
assertEquals(new JsExpr("Math.round(FLOAT_JS_CODE * 10000) / 10000",
Operator.DIVIDE_BY.getPrecedence()),
roundFunction.computeForJsSrc(
ImmutableList.of(floatExpr, numDigitsAfterPtExpr)));
numDigitsAfterPtExpr = new JsExpr("-2", Operator.NEGATIVE.getPrecedence());
assertEquals(new JsExpr("Math.round(FLOAT_JS_CODE / 100) * 100",
Operator.TIMES.getPrecedence()),
roundFunction.computeForJsSrc(
ImmutableList.of(floatExpr, numDigitsAfterPtExpr)));
numDigitsAfterPtExpr = new JsExpr("NUM_DIGITS_JS_CODE", Integer.MAX_VALUE);
assertEquals(new JsExpr("Math.round(FLOAT_JS_CODE * Math.pow(10, NUM_DIGITS_JS_CODE)) /" +
" Math.pow(10, NUM_DIGITS_JS_CODE)",
Operator.DIVIDE_BY.getPrecedence()),
roundFunction.computeForJsSrc(
ImmutableList.of(floatExpr, numDigitsAfterPtExpr)));
}
public void testComputeForJavaSrc() {
RoundFunction roundFunction = new RoundFunction();
JavaExpr floatExpr = new JavaExpr("FLOAT_JAVA_CODE", FloatData.class, Integer.MAX_VALUE);
assertEquals(new JavaExpr("com.google.template.soy.javasrc.codedeps.SoyUtils.$$round(" +
"FLOAT_JAVA_CODE, null)",
NumberData.class, Integer.MAX_VALUE),
roundFunction.computeForJavaSrc(ImmutableList.of(floatExpr)));
JavaExpr numDigitsAfterPtExpr =
new JavaExpr("NUM_DIGITS_JAVA_CODE", IntegerData.class, Integer.MAX_VALUE);
assertEquals(new JavaExpr("com.google.template.soy.javasrc.codedeps.SoyUtils.$$round(" +
"FLOAT_JAVA_CODE, NUM_DIGITS_JAVA_CODE)",
NumberData.class, Integer.MAX_VALUE),
roundFunction.computeForJavaSrc(
ImmutableList.of(floatExpr, numDigitsAfterPtExpr)));
}
}