Class LineByLineComparator

java.lang.Object

org.ek9lang.compiler.support.LineByLineComparator

All Implemented Interfaces:

BiPredicate<String,String>

public final class LineByLineComparator
extends Object
implements BiPredicate<String,String>

Compares two multi-line strings line-by-line for equality. Useful for validating generated output (IR, bytecode) against expected output in directives. Reports detailed differences including line numbers and content when strings don't match.

Constructor Summary

Constructors

Constructor	Description
LineByLineComparator(PrintStream output)

Method Summary

Modifier and Type	Method	Description
boolean	test(String expected, String actual)	Compare two multi-line strings line-by-line.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface BiPredicate

and, negate, or

Constructor Details

LineByLineComparator

public LineByLineComparator(PrintStream output)

Method Details

test

public boolean test(String expected,
 String actual)

Compare two multi-line strings line-by-line. Lines are trimmed before comparison to handle whitespace variations. Outputs detailed error information to System.err when differences are found.

Specified by:

test in interface BiPredicate<String,String>

Parameters:

expected - The expected string

actual - The actual string to compare

Returns:

true if all lines match (after trimming), false otherwise