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package javatests;
import org.junit.Test;
import org.python.core.PyStringMap;
import org.python.core.PySystemState;
import org.python.util.InteractiveInterpreter;
import java.io.StringWriter;
import static org.junit.Assert.*;
public class Issue2007Test {
/**
* Verify that {@code print_function} works in scripts. This was always the case.
*/
@Test
public void testPrintFunctionInScript() {
CapturingInterpreter interp = new CapturingInterpreter();
interp.exec("from __future__ import print_function\n" + "print(1, 2, 3)\n");
assertEquals("1 2 3\n", interp.getOutput());
}
/**
* Verify that print_function works when passing individual statements to an interactive
* interpreter. If issue 2007 is present, this will fail as the second statement will print
* {@code '(1, 2, 3)'} instead of {@code '1 2 3'}.
*/
@Test
public void testPrintFunctionInInteractive() {
CapturingInterpreter interp = new CapturingInterpreter();
interp.runsource("from __future__ import print_function");
interp.runsource("print(1, 2, 3)");
assertEquals("1 2 3\n", interp.getOutput());
}
private static class CapturingInterpreter extends InteractiveInterpreter {
private final StringWriter writer = new StringWriter();
CapturingInterpreter() {
super(new PyStringMap(), new PySystemState());
setOut(writer);
}
String getOutput() {
close();
return writer.toString();
}
}
}
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