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package junit.tests.runner;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import junit.framework.TestResult;
import junit.framework.TestSuite;
import junit.textui.ResultPrinter;
import junit.textui.TestRunner;
public class TextFeedbackTest extends TestCase {
OutputStream output;
TestRunner runner;
static class TestResultPrinter extends ResultPrinter {
TestResultPrinter(PrintStream writer) {
super(writer);
}
/* Spoof printing time so the tests are deterministic
*/
@Override
protected String elapsedTimeAsString(long runTime) {
return "0";
}
}
public static void main(String[] args) {
TestRunner.run(TextFeedbackTest.class);
}
@Override
public void setUp() {
output= new ByteArrayOutputStream();
runner= new TestRunner(new TestResultPrinter(new PrintStream(output)));
}
public void testEmptySuite() {
String expected= expected(new String[]{"", "Time: 0", "", "OK (0 tests)", ""});
runner.doRun(new TestSuite());
assertEquals(expected, output.toString());
}
public void testOneTest() {
String expected= expected(new String[]{".", "Time: 0", "", "OK (1 test)", ""});
TestSuite suite = new TestSuite();
suite.addTest(new TestCase() { @Override
public void runTest() {}});
runner.doRun(suite);
assertEquals(expected, output.toString());
}
public void testTwoTests() {
String expected= expected(new String[]{"..", "Time: 0", "", "OK (2 tests)", ""});
TestSuite suite = new TestSuite();
suite.addTest(new TestCase() { @Override
public void runTest() {}});
suite.addTest(new TestCase() { @Override
public void runTest() {}});
runner.doRun(suite);
assertEquals(expected, output.toString());
}
public void testFailure() {
String expected= expected(new String[]{".F", "Time: 0", "Failures here", "", "FAILURES!!!", "Tests run: 1, Failures: 1, Errors: 0", ""});
ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {
@Override
public void printFailures(TestResult result) {
getWriter().println("Failures here");
}
};
runner.setPrinter(printer);
TestSuite suite = new TestSuite();
suite.addTest(new TestCase() { @Override
public void runTest() {throw new AssertionFailedError();}});
runner.doRun(suite);
assertEquals(expected, output.toString());
}
public void testError() {
String expected= expected(new String[]{".E", "Time: 0", "Errors here", "", "FAILURES!!!", "Tests run: 1, Failures: 0, Errors: 1", ""});
ResultPrinter printer= new TestResultPrinter(new PrintStream(output)) {
@Override
public void printErrors(TestResult result) {
getWriter().println("Errors here");
}
};
runner.setPrinter(printer);
TestSuite suite = new TestSuite();
suite.addTest(new TestCase() { @Override
public void runTest() throws Exception {throw new Exception();}});
runner.doRun(suite);
assertEquals(expected, output.toString());
}
private String expected(String[] lines) {
OutputStream expected= new ByteArrayOutputStream();
PrintStream expectedWriter= new PrintStream(expected);
for (int i= 0; i < lines.length; i++)
expectedWriter.println(lines[i]);
return expected.toString();
}
}
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