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CompilerErrorUtil.java
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/
CompilerErrorUtil.java
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package cruise.compiler;
import org.junit.*;
import java.lang.ProcessBuilder;
import java.nio.file.Paths;
import java.io.File;
import java.io.FileReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;
public class CompilerErrorUtil
{
static String UMPLE_ROOT = "../";
static String SOURCE_FOLDER = (UMPLE_ROOT + "testbed/test/cruise/compiler/src/").replaceAll("/", File.separator);
static String EXPECTED_FOLDER = (UMPLE_ROOT + "testbed/test/cruise/compiler/expected/").replaceAll("/", File.separator);
static String UMPLE_JAR = (UMPLE_ROOT + "dist/umple.jar").replaceAll("/", File.separator);
public static void AssertCompileError(String umpleFile, String expectedOutputFile) {
// Construct a sub-process to build the umple file and compile the resulting Java
ProcessBuilder pb = new ProcessBuilder("java", "-jar", UMPLE_JAR, "-c-", SOURCE_FOLDER + umpleFile);
try {
Process p = pb.start();
BufferedReader actualReader = new BufferedReader(new InputStreamReader(p.getErrorStream()));
BufferedReader expectedReader = new BufferedReader(new FileReader(Paths.get(EXPECTED_FOLDER + expectedOutputFile).toFile()));
CompareCompiledOutputToExpected(actualReader, expectedReader);
actualReader.close();
expectedReader.close();
}
catch(Exception e) {
Assert.fail(e.getMessage());
}
}
public static void CompareCompiledOutputToExpected(BufferedReader actualReader, BufferedReader expectedReader) throws Exception{
String error = actualReader.readLine();
String expected = expectedReader.readLine();
int line = 0;
while (error != null && expected != null) {
line++;
Assert.assertEquals("Failed at: " + line, expected, error);
error = actualReader.readLine();
expected = expectedReader.readLine();
}
Assert.assertNull("Actual output contains additional lines", error);
Assert.assertNull("Expected output contains additional lines", expected);
}
}