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There is a big mix of different "load Resources" from different libraries depending on where you were and what type of resource you want. Now there is a clear hirarchy: ResourceUtils: for use in actual (non-test) code, reads a file from a context directory TestDataHelper (uses ResourceUtils): for use in tests, reads a file from a context directory + "/testdata". Also caches the resource so calling it multiple times with the same file will not read the file multiple times. Library specific helpers (e.g. ToolsTestData) (uses TestDataHelper): for use in that library's tests only, reads from a specific testdata directory. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=177027533
76 lines
2.8 KiB
Java
76 lines
2.8 KiB
Java
// Copyright 2017 The Nomulus Authors. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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 google.registry.testing;
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import static google.registry.util.CollectionUtils.nullToEmpty;
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import static google.registry.util.ResourceUtils.readResourceBytes;
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import static google.registry.util.ResourceUtils.readResourceUtf8;
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import com.google.auto.value.AutoValue;
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import com.google.common.io.ByteSource;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.concurrent.ConcurrentHashMap;
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/** Contains helper methods for dealing with test data. */
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public final class TestDataHelper {
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@AutoValue
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abstract static class FileKey {
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abstract Class<?> context();
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abstract String filename();
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static FileKey create(Class<?> context, String filename) {
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return new AutoValue_TestDataHelper_FileKey(context, filename);
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}
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}
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private static final Map<FileKey, String> fileCache = new ConcurrentHashMap<>();
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private static final Map<FileKey, ByteSource> byteCache = new ConcurrentHashMap<>();
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/**
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* Loads a text file from the "testdata" directory relative to the location of the specified
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* context class.
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*/
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public static String loadFile(Class<?> context, String filename) {
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return fileCache.computeIfAbsent(
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FileKey.create(context, filename),
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k -> readResourceUtf8(context, "testdata/" + filename));
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}
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/**
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* Loads a text file from the "testdata" directory relative to the location of the specified
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* context class, and substitutes in values for placeholders of the form <code>%tagname%</code>.
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*/
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public static String loadFileWithSubstitutions(
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Class<?> context, String filename, Map<String, String> substitutions) {
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String fileContents = loadFile(context, filename);
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for (Entry<String, String> entry : nullToEmpty(substitutions).entrySet()) {
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fileContents = fileContents.replaceAll("%" + entry.getKey() + "%", entry.getValue());
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}
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return fileContents;
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}
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/**
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* Loads a {@link ByteSource} from the "testdata" directory relative to the location of the
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* specified context class.
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*/
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public static ByteSource loadBytes(Class<?> context, String filename) {
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return byteCache.computeIfAbsent(
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FileKey.create(context, filename),
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k -> readResourceBytes(context, "testdata/" + filename));
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}
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}
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