/**
* Tests that input steps can only be added at the start of the munge process list. Any additions
* later in the list will throw an exception as they would be considered a step in process.
*/
public void testInsertSQLInputStepAtStart() throws Exception {
MungeProcess process = new MungeProcess();
SQLInputStep input1 = new SQLInputStep();
try {
process.addMungeStep(input1, 0);
} catch (Exception e) {
fail("The process failed to allow an input step to be correctly added at the start");
}
BooleanConstantMungeStep step = new BooleanConstantMungeStep();
process.addMungeStep(step, 1);
SQLInputStep input2 = new SQLInputStep();
try {
process.addMungeStep(input2, 1);
} catch (Exception e) {
fail("The process failed to allow an input step to be correctly added before other steps.");
}
SQLInputStep input3 = new SQLInputStep();
try {
process.addMungeStep(input3, 3);
fail("We should not be allowed to add a munge step after the third position.");
} catch (Exception e) {
// we pass at this point because an exception was thrown
}
}
/**
* Tests that steps can only be added after the input steps if the step is not itself an input
* step. This ensures the list ordering is as we expect.
*/
public void testOtherStepsAfterInputSteps() throws Exception {
MungeProcess process = new MungeProcess();
SQLInputStep input1 = new SQLInputStep();
process.addMungeStep(input1, 0);
BooleanConstantMungeStep step = new BooleanConstantMungeStep();
try {
process.addMungeStep(step, 1);
} catch (Exception e) {
fail("We should be able to add munge steps after the input steps.");
}
BooleanConstantMungeStep step2 = new BooleanConstantMungeStep();
try {
process.addMungeStep(step2, 0);
fail("We should not be able to add munge steps before the input steps.");
} catch (Exception e) {
// we pass because we get an exception for an invalid position
}
BooleanConstantMungeStep step3 = new BooleanConstantMungeStep();
try {
process.addMungeStep(step3, 3);
fail("We should not be able to add munge steps after the result step.");
} catch (Exception e) {
// we pass because we get an exception for an invalid position
}
}