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* Copyright 2012 the original author or authors.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.gmetrics.formatter
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import org.gmetrics.test.AbstractTestCase
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* Tests for PercentageFormatter
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class PercentageFormatterTest extends AbstractTestCase {
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private formatter = new PercentageFormatter()
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void testImplementsFormatter() {
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assert formatter instanceof Formatter
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void testFormat_NotANumber_ThrowsException() {
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shouldFailWithMessageContaining('Number') { formatter.format('abc') }
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void testFormat_Zero() {
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assert formatter.format(0.0) == '0%'
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void testFormat_ZeroInteger() {
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assert formatter.format(0) == '0%'
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void testFormat_Decimal() {
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assert formatter.format(0.67) == '67%'
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void testFormat_SetsDefaultScaleToConvertToIntegerPercentage() {
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assert formatter.format(0.671234) == '67%'
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void testFormat_Integer() {
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assert formatter.format(123) == '12300%'
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void testFormat_Null_ReturnsNull() {
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assert formatter.format(null) == null