/**
* Cmd_ lu diff.
*
* @throws InvalidElementException the invalid element exception
*/
@Test
public void cmd_LUDiff() throws InvalidElementException {
// Setup Differential Calculation.
final LogicalUnit lu = this.stage.getLogicalUnit("aCard1");
lu.getContents().addElement(new Artifact(TH.w1File));
lu.commit("Scott", "Differential Commit.");
TH.writeFile(TH.w1File, "Line 1 Content.\nLine 2 Content.\n\nLine 4 Content.");
this.cmd = new LUCmdDiff(this.stage, "aCard1", "c1File.txt");
Assert.assertTrue("Should Succeed.", this.cmd.execute());
this.cmd = new LUCmdDiff(this.stage);
Assert.assertFalse("Should Not Succeed.", this.cmd.execute());
// Check Acceptable
Assert.assertTrue(
"Doesn't Accept 'ludiff aCard -e c1File.txt'.",
this.cmd.accepts("ludiff aCard -e c1File.txt"));
Assert.assertTrue(
"Doesn't Accept 'ludiff -e c1File.txt'.", this.cmd.accepts("ludiff -e c1File.txt"));
Assert.assertTrue("Doesn't Accept 'ludiff -e a b c'.", this.cmd.accepts("ludiff -e a b c"));
Assert.assertTrue(
"Doesn't Accept 'ludiff x y z -e a b c'.", this.cmd.accepts("ludiff x y z -e a b c"));
Assert.assertTrue(
"Doesn't Accept 'ludiff x y z -e a/b/c/'.", this.cmd.accepts("ludiff x y z -e a/b/c/"));
// Check Reject
Assert.assertFalse(
"Accepts 'ludiff -er c1File.txt'.", this.cmd.accepts("ludiff -er c1File.txt"));
Assert.assertTrue(
"Should Contain Usage.", this.cmd.getProcessingFailure().contains(this.cmd.getUsage()));
// assertFalse("Accepts 'ludiff abc -e /'.",
// cmd.accepts("ludiff abc -e /"));
Assert.assertFalse("Accepts 'ludiff -e '.", this.cmd.accepts("ludiff -e "));
// Check Exit and Usage
Assert.assertFalse("Exits.", this.cmd.exits());
Assert.assertTrue("Usage.", this.cmd.getUsage().startsWith("luDiff {<luName>} -e <eName>"));
}
