Mocha test on simple code fails when for no apparent reason
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This is a sort of an online programming test. The system allows you to write a solution to problems and checks it against it's (the platform's internal) unit tests.
Here is the summary of the problem:
To write a function that takes 2 params (x, y).
If x is greater than y, it returns an array of even numbers
between x and y.
If x is lesser than y, it returns an array of odd numbers between
x and y.
If x and y are equal, or if the input is invalid/not integers, it
returns an empty array. The resulting array is exclusive of x and y
in each case.
For instance, if x, y are integers 10, 2, the function would return
all the even numbers between 2 and 10 i.e [4, 6, 8].
Here is my code:
const numGame = (x, y) => {
let result = ;
if (!Number.isInteger(x) || !Number.isInteger(y)) {
return result;
}
if (x > y) {
for(let i = y + 1; i < x; i++)
if(i%2 == 0) result.push(i);
}
if (x < y) {
for(let i = x + 1; i < y; i++) {
if(i%2 == 1 || i%2 == -1) result.push(i);
}
}
return result;
}
Here are my own tests that pass easily:
describe('Challenge', function() {
it('should return the right array', function() {
assert.deepEqual(numGame(2,12), [3, 5, 7, 9, 11]);
assert.deepEqual(numGame(12, 2), [4, 6, 8, 10]);
assert.deepEqual(numGame(-6, 12), [-5, -3, -1, 1, 3, 5, 7, 9, 11]);
assert.deepEqual(numGame(12, -4), [-2, 0, 2, 4, 6, 8, 10]);
assert.deepEqual(numGame(0,0), );
});
});
My tests above pass, but when I submit my code, it fails the internal tests and returns the following:
should return the right array
expected [ Array(9) ] to deeply equal [ Array(11) ]
The error seems strange. There's no way to see the code my solution is tested against so it's really frustrating. Please, review my solution to see if there are any edge cases that it's not handling, and maybe provide a better solution/algorithm.
I would also like to know if there's a chance that the platform's internal test might be wrong in some way? Thanks!
javascript arrays node.js unit-testing mocha
edited Nov 25 '18 at 9:41
Yashwardhan Pauranik
2,24311731
asked Nov 25 '18 at 7:03
MudiMudi
85
add a comment |
This is a sort of an online programming test. The system allows you to write a solution to problems and checks it against it's (the platform's internal) unit tests.
Here is the summary of the problem:
To write a function that takes 2 params (x, y).
If x is greater than y, it returns an array of even numbers
between x and y.
If x is lesser than y, it returns an array of odd numbers between
x and y.
If x and y are equal, or if the input is invalid/not integers, it
returns an empty array. The resulting array is exclusive of x and y
in each case.
For instance, if x, y are integers 10, 2, the function would return
all the even numbers between 2 and 10 i.e [4, 6, 8].
Here is my code:
const numGame = (x, y) => {
let result = ;
if (!Number.isInteger(x) || !Number.isInteger(y)) {
return result;
}
if (x > y) {
for(let i = y + 1; i < x; i++)
if(i%2 == 0) result.push(i);
}
if (x < y) {
for(let i = x + 1; i < y; i++) {
if(i%2 == 1 || i%2 == -1) result.push(i);
}
}
return result;
}
Here are my own tests that pass easily:
describe('Challenge', function() {
it('should return the right array', function() {
assert.deepEqual(numGame(2,12), [3, 5, 7, 9, 11]);
assert.deepEqual(numGame(12, 2), [4, 6, 8, 10]);
assert.deepEqual(numGame(-6, 12), [-5, -3, -1, 1, 3, 5, 7, 9, 11]);
assert.deepEqual(numGame(12, -4), [-2, 0, 2, 4, 6, 8, 10]);
assert.deepEqual(numGame(0,0), );
});
});
My tests above pass, but when I submit my code, it fails the internal tests and returns the following:
should return the right array
expected [ Array(9) ] to deeply equal [ Array(11) ]
The error seems strange. There's no way to see the code my solution is tested against so it's really frustrating. Please, review my solution to see if there are any edge cases that it's not handling, and maybe provide a better solution/algorithm.
I would also like to know if there's a chance that the platform's internal test might be wrong in some way? Thanks!
javascript arrays node.js unit-testing mocha
edited Nov 25 '18 at 9:41
Yashwardhan Pauranik
2,24311731
asked Nov 25 '18 at 7:03
MudiMudi
85
1
You need to provide more details about the specification. 1) "If y is greater than y" is probably a mistake, and should read "if x is greater than y". 2) Are the limits inclusive or exclusive? In other words, is "between 1 and 3" equal to [1, 2, 3] or [2]. 3) What happens when x == y?
– Sami Hult
Nov 25 '18 at 7:14
@SamiHult, thanks for pointing out the blanks, I just edited the the question. Can you please take a look now?
– Mudi
Nov 25 '18 at 7:44
It seems to me that the code works as expected. The feedback from the testing machine suggests that either you have misread some of the instructions (array lengths 9 vs. 11 could mean that the limits are inclusive, after all) or that the test case is on the remote machine is, in fact, faulty. If you are sure that you understood the instructions correctly, I suggest that you raise a concern about the validity of the test.
– Sami Hult
Nov 25 '18 at 7:59
@SamiHult, the instructions were clear enough, even sample tests provided by the platform indicates that. It turns out that the platform's test is in fact wrong. I edited the code to include x and y, and the test passed. I always thought I was a shitty developer!
– Mudi
Nov 25 '18 at 8:32
add a comment |
This is a sort of an online programming test. The system allows you to write a solution to problems and checks it against it's (the platform's internal) unit tests.
Here is the summary of the problem:
To write a function that takes 2 params (x, y).
If x is greater than y, it returns an array of even numbers
between x and y.
If x is lesser than y, it returns an array of odd numbers between
x and y.
If x and y are equal, or if the input is invalid/not integers, it
returns an empty array. The resulting array is exclusive of x and y
in each case.
For instance, if x, y are integers 10, 2, the function would return
all the even numbers between 2 and 10 i.e [4, 6, 8].
Here is my code:
const numGame = (x, y) => {
let result = ;
if (!Number.isInteger(x) || !Number.isInteger(y)) {
return result;
}
if (x > y) {
for(let i = y + 1; i < x; i++)
if(i%2 == 0) result.push(i);
}
if (x < y) {
for(let i = x + 1; i < y; i++) {
if(i%2 == 1 || i%2 == -1) result.push(i);
}
}
return result;
}
Here are my own tests that pass easily:
describe('Challenge', function() {
it('should return the right array', function() {
assert.deepEqual(numGame(2,12), [3, 5, 7, 9, 11]);
assert.deepEqual(numGame(12, 2), [4, 6, 8, 10]);
assert.deepEqual(numGame(-6, 12), [-5, -3, -1, 1, 3, 5, 7, 9, 11]);
assert.deepEqual(numGame(12, -4), [-2, 0, 2, 4, 6, 8, 10]);
assert.deepEqual(numGame(0,0), );
});
});
My tests above pass, but when I submit my code, it fails the internal tests and returns the following:
should return the right array
expected [ Array(9) ] to deeply equal [ Array(11) ]
The error seems strange. There's no way to see the code my solution is tested against so it's really frustrating. Please, review my solution to see if there are any edge cases that it's not handling, and maybe provide a better solution/algorithm.
I would also like to know if there's a chance that the platform's internal test might be wrong in some way? Thanks!
javascript arrays node.js unit-testing mocha
edited Nov 25 '18 at 9:41
Yashwardhan Pauranik
2,24311731
asked Nov 25 '18 at 7:03
MudiMudi
85
This is a sort of an online programming test. The system allows you to write a solution to problems and checks it against it's (the platform's internal) unit tests.
Here is the summary of the problem:
To write a function that takes 2 params (x, y).
If x is greater than y, it returns an array of even numbers
between x and y.
If x is lesser than y, it returns an array of odd numbers between
x and y.
If x and y are equal, or if the input is invalid/not integers, it
returns an empty array. The resulting array is exclusive of x and y
in each case.
For instance, if x, y are integers 10, 2, the function would return
all the even numbers between 2 and 10 i.e [4, 6, 8].
Here is my code:
const numGame = (x, y) => {
let result = ;
if (!Number.isInteger(x) || !Number.isInteger(y)) {
return result;
}
if (x > y) {
for(let i = y + 1; i < x; i++)
if(i%2 == 0) result.push(i);
}
if (x < y) {
for(let i = x + 1; i < y; i++) {
if(i%2 == 1 || i%2 == -1) result.push(i);
}
}
return result;
}
Here are my own tests that pass easily:
describe('Challenge', function() {
it('should return the right array', function() {
assert.deepEqual(numGame(2,12), [3, 5, 7, 9, 11]);
assert.deepEqual(numGame(12, 2), [4, 6, 8, 10]);
assert.deepEqual(numGame(-6, 12), [-5, -3, -1, 1, 3, 5, 7, 9, 11]);
assert.deepEqual(numGame(12, -4), [-2, 0, 2, 4, 6, 8, 10]);
assert.deepEqual(numGame(0,0), );
});
});
My tests above pass, but when I submit my code, it fails the internal tests and returns the following:
should return the right array
expected [ Array(9) ] to deeply equal [ Array(11) ]
The error seems strange. There's no way to see the code my solution is tested against so it's really frustrating. Please, review my solution to see if there are any edge cases that it's not handling, and maybe provide a better solution/algorithm.
I would also like to know if there's a chance that the platform's internal test might be wrong in some way? Thanks!
javascript arrays node.js unit-testing mocha
javascript arrays node.js unit-testing mocha
edited Nov 25 '18 at 9:41
Yashwardhan Pauranik
2,24311731
asked Nov 25 '18 at 7:03
MudiMudi
85
edited Nov 25 '18 at 9:41
Yashwardhan Pauranik
2,24311731
asked Nov 25 '18 at 7:03
MudiMudi
85
edited Nov 25 '18 at 9:41
Yashwardhan Pauranik
2,24311731
edited Nov 25 '18 at 9:41
Yashwardhan Pauranik
2,24311731
edited Nov 25 '18 at 9:41
Yashwardhan Pauranik
2,24311731
2,24311731
asked Nov 25 '18 at 7:03
MudiMudi
85
asked Nov 25 '18 at 7:03
MudiMudi
85
asked Nov 25 '18 at 7:03
MudiMudi
85
85
1
You need to provide more details about the specification. 1) "If y is greater than y" is probably a mistake, and should read "if x is greater than y". 2) Are the limits inclusive or exclusive? In other words, is "between 1 and 3" equal to [1, 2, 3] or [2]. 3) What happens when x == y?
– Sami Hult
Nov 25 '18 at 7:14
@SamiHult, thanks for pointing out the blanks, I just edited the the question. Can you please take a look now?
– Mudi
Nov 25 '18 at 7:44
It seems to me that the code works as expected. The feedback from the testing machine suggests that either you have misread some of the instructions (array lengths 9 vs. 11 could mean that the limits are inclusive, after all) or that the test case is on the remote machine is, in fact, faulty. If you are sure that you understood the instructions correctly, I suggest that you raise a concern about the validity of the test.
– Sami Hult
Nov 25 '18 at 7:59
@SamiHult, the instructions were clear enough, even sample tests provided by the platform indicates that. It turns out that the platform's test is in fact wrong. I edited the code to include x and y, and the test passed. I always thought I was a shitty developer!
– Mudi
Nov 25 '18 at 8:32
add a comment |
1
You need to provide more details about the specification. 1) "If y is greater than y" is probably a mistake, and should read "if x is greater than y". 2) Are the limits inclusive or exclusive? In other words, is "between 1 and 3" equal to [1, 2, 3] or [2]. 3) What happens when x == y?
– Sami Hult
Nov 25 '18 at 7:14
@SamiHult, thanks for pointing out the blanks, I just edited the the question. Can you please take a look now?
– Mudi
Nov 25 '18 at 7:44
It seems to me that the code works as expected. The feedback from the testing machine suggests that either you have misread some of the instructions (array lengths 9 vs. 11 could mean that the limits are inclusive, after all) or that the test case is on the remote machine is, in fact, faulty. If you are sure that you understood the instructions correctly, I suggest that you raise a concern about the validity of the test.
– Sami Hult
Nov 25 '18 at 7:59
@SamiHult, the instructions were clear enough, even sample tests provided by the platform indicates that. It turns out that the platform's test is in fact wrong. I edited the code to include x and y, and the test passed. I always thought I was a shitty developer!
– Mudi
Nov 25 '18 at 8:32
1
1
You need to provide more details about the specification. 1) "If y is greater than y" is probably a mistake, and should read "if x is greater than y". 2) Are the limits inclusive or exclusive? In other words, is "between 1 and 3" equal to [1, 2, 3] or [2]. 3) What happens when x == y?
– Sami Hult
Nov 25 '18 at 7:14
You need to provide more details about the specification. 1) "If y is greater than y" is probably a mistake, and should read "if x is greater than y". 2) Are the limits inclusive or exclusive? In other words, is "between 1 and 3" equal to [1, 2, 3] or [2]. 3) What happens when x == y?
– Sami Hult
Nov 25 '18 at 7:14
@SamiHult, thanks for pointing out the blanks, I just edited the the question. Can you please take a look now?
– Mudi
Nov 25 '18 at 7:44
@SamiHult, thanks for pointing out the blanks, I just edited the the question. Can you please take a look now?
– Mudi
Nov 25 '18 at 7:44
It seems to me that the code works as expected. The feedback from the testing machine suggests that either you have misread some of the instructions (array lengths 9 vs. 11 could mean that the limits are inclusive, after all) or that the test case is on the remote machine is, in fact, faulty. If you are sure that you understood the instructions correctly, I suggest that you raise a concern about the validity of the test.
– Sami Hult
Nov 25 '18 at 7:59
It seems to me that the code works as expected. The feedback from the testing machine suggests that either you have misread some of the instructions (array lengths 9 vs. 11 could mean that the limits are inclusive, after all) or that the test case is on the remote machine is, in fact, faulty. If you are sure that you understood the instructions correctly, I suggest that you raise a concern about the validity of the test.
– Sami Hult
Nov 25 '18 at 7:59
@SamiHult, the instructions were clear enough, even sample tests provided by the platform indicates that. It turns out that the platform's test is in fact wrong. I edited the code to include x and y, and the test passed. I always thought I was a shitty developer!
– Mudi
Nov 25 '18 at 8:32
@SamiHult, the instructions were clear enough, even sample tests provided by the platform indicates that. It turns out that the platform's test is in fact wrong. I edited the code to include x and y, and the test passed. I always thought I was a shitty developer!
– Mudi
Nov 25 '18 at 8:32
add a comment |
1 Answer
1
active
oldest
votes
It turns out that the platform's test against which my code is tested, is in fact wrong. I edited the code to include x and y, and the test passed.
answered Nov 25 '18 at 8:36
MudiMudi
85
add a comment |
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It turns out that the platform's test against which my code is tested, is in fact wrong. I edited the code to include x and y, and the test passed.
answered Nov 25 '18 at 8:36
MudiMudi
85
add a comment |
It turns out that the platform's test against which my code is tested, is in fact wrong. I edited the code to include x and y, and the test passed.
answered Nov 25 '18 at 8:36
MudiMudi
85
add a comment |
It turns out that the platform's test against which my code is tested, is in fact wrong. I edited the code to include x and y, and the test passed.
answered Nov 25 '18 at 8:36
MudiMudi
85
It turns out that the platform's test against which my code is tested, is in fact wrong. I edited the code to include x and y, and the test passed.
answered Nov 25 '18 at 8:36
MudiMudi
85
answered Nov 25 '18 at 8:36
MudiMudi
85
answered Nov 25 '18 at 8:36
MudiMudi
85
answered Nov 25 '18 at 8:36
MudiMudi
85
85
add a comment |
add a comment |
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1
You need to provide more details about the specification. 1) "If y is greater than y" is probably a mistake, and should read "if x is greater than y". 2) Are the limits inclusive or exclusive? In other words, is "between 1 and 3" equal to [1, 2, 3] or [2]. 3) What happens when x == y?
– Sami Hult
Nov 25 '18 at 7:14
@SamiHult, thanks for pointing out the blanks, I just edited the the question. Can you please take a look now?
– Mudi
Nov 25 '18 at 7:44
It seems to me that the code works as expected. The feedback from the testing machine suggests that either you have misread some of the instructions (array lengths 9 vs. 11 could mean that the limits are inclusive, after all) or that the test case is on the remote machine is, in fact, faulty. If you are sure that you understood the instructions correctly, I suggest that you raise a concern about the validity of the test.
– Sami Hult
Nov 25 '18 at 7:59
@SamiHult, the instructions were clear enough, even sample tests provided by the platform indicates that. It turns out that the platform's test is in fact wrong. I edited the code to include x and y, and the test passed. I always thought I was a shitty developer!
– Mudi
Nov 25 '18 at 8:32