Writing test cases for a java program - Overclock.net

tenzo19 · 09-07-09

I have homework due tomorrow for my Java class and I'm not quite sure how to do testing.

Here is the code I wrote:

/** The sum of all integers, k, such that 1 <= k < N and
* N is evenly divisible by k. */
static int factorSum (int N) {
int sum;
sum = 0;
for (int k = 1; k < N; k += 1)
if (N % k == 0)
sum += k;
return sum;
}

In another java file, there is

private static boolean test_factorSum () {
< fill in your code here >
}

How do I test the first java file with this second java file? I'm using emacs and gmake.

newbie1911 · 09-07-09

i know 0 java but it looks similar to c++. so if private static boolean test_factorSum () {
< fill in your code here >
} is anything like main in c++ then you would need to insert your first code into the second one like this

Code:

 
private static boolean test_factorSum () {
/** The sum of all integers, k, such that 1 <= k < N and
* N is evenly divisible by k. */
static int factorSum (int N) {
int sum;
sum = 0;
for (int k = 1; k < N; k += 1)
{   //not sure if these are needed in java
if (N % k == 0)
sum += k;
}   //not sure if these are needed in java
return sum;
}
}

also im not sure but in c++ you need to add brackets if theres more than one line of code after for

serge2k · 09-07-09

FactorClassName.factorSum(N);

inside of the test function.

Remember to import the class file properly too.
Is it part of the assignment to use different files?

decompiled · 09-11-09

JUnit is your friend when it comes to testing in Java.

09-07-09	#2 (permalink)
newbie1911 Programmer Join Date: Jul 2008 Posts: 319 Rep: 19 Unique Rep: 17 Trader Rating: 0	i know 0 java but it looks similar to c++. so if private static boolean test_factorSum () { < fill in your code here > } is anything like main in c++ then you would need to insert your first code into the second one like this Code: private static boolean test_factorSum () { /** The sum of all integers, k, such that 1 <= k < N and * N is evenly divisible by k. / static int factorSum (int N) { int sum; sum = 0; for (int k = 1; k < N; k += 1) { //not sure if these are needed in java if (N % k == 0) sum += k; } //not sure if these are needed in java return sum; } } also im not sure but in c++ you need to add brackets if theres more than one line of code after for __________________ 90% of statistics are made up on the spot. including this one.* Last edited by newbie1911 : 09-07-09 at 07:44 AM

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Writing test cases for a java program

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