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/*
* Copyright (C) 2009 The Guava Authors
*
* 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.common.collect.testing.testers;
import com.google.common.annotations.GwtCompatible;
import com.google.gwt.core.client.GWT;
/**
* The emulation source used in GWT.
*
* @author Hayward Chan
*/
@GwtCompatible(emulated = true)
class Platform {
// Use fewer steps in the ListIteratorTester in ListListIteratorTester because it's slow in prod
// mode.
static int listListIteratorTesterNumIterations() {
// TODO(hhchan): It's 4 in java. Figure out why even 3 is too slow in prod mode.
return GWT.isProdMode() ? 2 : 4;
}
// Use fewer steps in the IteratorTester in CollectionIteratorTester because it's slow in prod
// mode..
static int collectionIteratorTesterNumIterations() {
return GWT.isProdMode() ? 3 : 5;
}
// TODO: Consolidate different copies in one single place.
static String format(String template, Object... args) {
// start substituting the arguments into the '%s' placeholders
StringBuilder builder = new StringBuilder(
template.length() + 16 * args.length);
int templateStart = 0;
int i = 0;
while (i < args.length) {
int placeholderStart = template.indexOf("%s", templateStart);
if (placeholderStart == -1) {
break;
}
builder.append(template.substring(templateStart, placeholderStart));
builder.append(args[i++]);
templateStart = placeholderStart + 2;
}
builder.append(template.substring(templateStart));
// if we run out of placeholders, append the extra args in square braces
if (i < args.length) {
builder.append(" [");
builder.append(args[i++]);
while (i < args.length) {
builder.append(", ");
builder.append(args[i++]);
}
builder.append("]");
}
return builder.toString();
}
}
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