## Class Variables
public static int numTests = 0;
public static int numPassedTests = 0;
## main Method
lets1 = new LetterInventory("!@*$&%^@)!)@($(#&&!&!((");
runTest(0, lets1.size());
runTest("", lets1.toString());
for(char c = 'a'; c <= 'z'; c++) {
	runTest(0, lets1.get(c));
}
for(char c = 'A'; c <= 'Z'; c++) {
	runTest(0, lets1.get(c));
}
runTest(lets2, lets1.add(lets2));
runTest(null, lets1.subtract(lets2));
runTest(true, lets1.isEmpty());
for(char c = 'a'; c <= 'z'; c++)
	lets1.set(c, 1);
for(char c = 'a'; c <= 'z'; c++)
	runTest(1, lets1.get(c));
for(char c = 'A'; c <= 'Z'; c++)
	runTest(1, lets1.get(c));
runTest(26, lets1.size());
runTest(false, lets1.isEmpty());
runTest("abcdefghijklmnopqrstuvwxyz", lets1.toString());
for(char c = 'A'; c <= 'Z'; c++)
	lets1.set(c, 2);
for(char c = 'a'; c <= 'z'; c++)
	runTest(2, lets1.get(c));
for(char c = 'A'; c <= 'Z'; c++)
	runTest(2, lets1.get(c));
runTest(52, lets1.size());
runTest(false, lets1.isEmpty());
runTest("aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz", lets1.toString());
runTest(true, lets1.equals(lets1));
runTest(lets1, lets1);

lets1 = new LetterInventory("joe");
lets2 = new LetterInventory("bob");
lets4 = new LetterInventory("bobjoe");
runTest(false, lets1.equals(lets2));
runTest(false, lets2.equals(lets1));
runTest(false, lets1.equals(lets4));
runTest(false, lets4.equals(lets1));
runTest(false, lets2.equals(lets4));
runTest(false, lets4.equals(lets2));
runTest(lets4, lets1.add(lets2));
runTest(lets1, lets4.subtract(lets2));
runTest(lets2, lets4.subtract(lets1)); // test 200

lets1 = new LetterInventory("ÀÃÆÇÈî‰|µ¶¿ÿ");
runTest(0, lets1.size());
runTest("", lets1.toString());
runTest(false, lets1.equals('È'));
try { lets1.get('È'); runErroringTest(false); } catch (AssertionError e) { runErroringTest(true); }
try { lets1.set('È', 800); runErroringTest(false); } catch (AssertionError e) { runErroringTest(true); }

System.out.println();
System.out.println("Passed " + numPassedTests + "/" + numTests);

## Testing Helper Methods
// Modified a bit from the original method Mike gave us to keep track of # tests & # that pass
public static boolean showTestResults(Object expected, Object actual, int testNum, String featureTested) {
	numTests++;
	System.out.println("Test Number " + testNum + " testing " + featureTested);
	System.out.println("Expected result: " + expected);
	System.out.println("Actual result: " + actual);
	boolean passed = (actual == null && expected == null) || actual.equals(expected);
	if(passed) {
		numPassedTests++;
		System.out.println("Passed test " + testNum);
	} else
		System.out.println("!!! FAILED TEST !!! " + testNum);
	System.out.println();
	return passed;
}
private static void runTest(int expected, int actual) {
	numTests++;
	if( expected == actual ) {
		numPassedTests++;
		System.out.print("Test " + numTests + " expected value: " + expected + ", actual value: " + actual);
	} else {
		System.out.print("FAILURE -- Test " + numTests + " expected value: " + expected + ", actual value: " + actual);
	}
	System.out.println();
}

private static void runTest(String expected, String actual) {
	numTests++;
	if( expected.equals(actual) ) {
		numPassedTests++;
		System.out.print("Test " + numTests + " expected value: " + expected + ", actual value: " + actual);
	} else {
		System.out.print("FAILURE -- Test " + numTests + " expected value: " + expected + ", actual value: " + actual);
	}
	System.out.println();
}

private static void runTest(boolean expected, boolean actual) {
	numTests++;
	if( expected == actual ) {
		numPassedTests++;
		System.out.print("Test " + numTests + " expected value: " + expected + ", actual value: " + actual);
	} else {
		System.out.print("FAILURE -- Test " + numTests + " expected value: " + expected + ", actual value: " + actual);
	}
	System.out.println();
}

private static void runTest(Object expected, Object actual) {
	numTests++;
	if( (expected == null && actual == null) || expected.equals(actual) ) {
		numPassedTests++;
		System.out.print("Test " + numTests + " expected value: " + expected + ", actual value: " + actual);
	} else {
		System.out.print("FAILURE -- Test " + numTests + " expected value: " + expected + ", actual value: " + actual);
	}
	System.out.println();
}

private static void runErroringTest(boolean failed) {
	numTests++;
	if( failed ) {
		numPassedTests++;
		System.out.print("Test " + numTests + " sucessfully failed");
	} else {
		System.out.print("FAILURE -- Test " + numTests + " did not fail");
	}
	System.out.println();
}