/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.avro.idl;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
import java.util.ArrayList;
import java.util.List;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.avro.Protocol;
/**
* Simple test harness for Idl.
* This relies on an input/ and output/ directory. Inside
* the input/ directory are .avdl files. Each file should have
* a corresponding .avpr file in output/. When the test is run,
* it generates and stringifies each .avdl file and compares
* it to the expected output, failing if the two differ.
*
* To make it simpler to write these tests, you can run
* ant -Dtestcase=TestIdl -Dtest.idl.mode=write
* which will *replace* all expected output.
*/
public class TestIdl {
private static final File TEST_DIR =
new File(System.getProperty("test.idl.dir"));
private static final File TEST_INPUT_DIR =
new File(TEST_DIR, "input");
private static final File TEST_OUTPUT_DIR =
new File(TEST_DIR, "output");
private static final String TEST_MODE =
System.getProperty("test.idl.mode", "run");
private List<GenTest> tests;
@Before
public void loadTests() {
assertTrue(TEST_DIR.exists());
assertTrue(TEST_INPUT_DIR.exists());
assertTrue(TEST_OUTPUT_DIR.exists());
tests = new ArrayList<GenTest>();
for (File inF : TEST_INPUT_DIR.listFiles()) {
if (!inF.getName().endsWith(".avdl")) continue;
if (inF.getName().startsWith(".")) continue;
File outF = new File(
TEST_OUTPUT_DIR,
inF.getName().replaceFirst("\\.avdl$", ".avpr"));
tests.add(new GenTest(inF, outF));
}
}
@Test
public void runTests() throws Exception {
if (! "run".equals(TEST_MODE)) return;
int passed = 0, failed = 0;
for (GenTest t : tests) {
try {
t.run();
passed++;
} catch (Exception e) {
failed++;
e.printStackTrace(System.err);
}
}
if (failed > 0) {
fail(String.valueOf(failed) + " tests failed");
}
}
@Test
public void writeTests() throws Exception {
if (! "write".equals(TEST_MODE)) return;
for (GenTest t : tests) {
t.write();
}
}
/**
* An invididual comparison test
*/
private static class GenTest {
private final File in, expectedOut;
public GenTest(File in, File expectedOut) {
this.in = in;
this.expectedOut = expectedOut;
}
private String generate() throws Exception {
Idl parser = new Idl(in);
Protocol p = parser.CompilationUnit();
return p.toString(true);
}
public void run() throws Exception {
String output = generate();
String slurped = slurp(expectedOut);
assertEquals(slurped.trim(), output.replace("\r", "").trim());
}
public void write() throws Exception {
writeFile(expectedOut, generate());
}
private static String slurp(File f) throws IOException {
BufferedReader in = new BufferedReader(
new InputStreamReader(new FileInputStream(f), "UTF-8"));
String line = null;
StringBuilder builder = new StringBuilder();
while ((line = in.readLine()) != null) {
builder.append(line).append('\n');
}
return builder.toString();
}
private static void writeFile(File f, String s) throws IOException {
FileWriter w = new FileWriter(f);
w.write(s);
w.close();
}
}
}