Assertion Failing, even if the output value (or string, in this case) and the assertion is exactly same

Hello Community,

The execution of my code, is showing "Error using assert, Assertion failed". Even though the output value and the compared value are exactly the same.

This is what i am trying to display:

res = sprintf("%s won by %g runs",a(1),(c_1-d_1))

and %s and % g are giving me the same values i.e. India and 31 in this case.

this is the assertion command:

assert( isequal(res,"India won by 31 runs") )

[Dyuman Joshi]

I believe you are trying to solve Cody Problem #56538. The assertion seems to be working here.

res = sprintf("%s won by %g runs","India",250+307-235-291)

res = "India won by 31 runs"

assert( isequal(res,"India won by 31 runs") )

Can you attach your code? or a sample of it? So I can reproduce the error and see what's wrong.

[Shubham Shubham]

Yes it is infact the Cody Problem #56538.

function res = reportresult(s1,s2)

pat = digitsPattern;

a = split(s1,pat);

b = split(s2,pat);

c = double(extract(s1,pat))

d = double(extract(s2,pat))

wickets_1 = extractAfter(s1,'/');

wickets_1 = double(extract(wickets_1,pat));

wickets_2 = extractBetween(s2,'/','d');

c_1 = sum(c) - sum(double(wickets_1));

d_1 = sum(d)-sum(double(wickets_2));

if c_1 > d_1

res = sprintf("%s won by %g runs",a(1),c_1-d_1)

end

I have tailored this code just for the case below:

s1 = "India 250 & 307";

s2 = "Australia 235 & 291"

res = reportresult(s1,s2);

assert(isequal(res,"India won by 31 runs"))

Answer 1

[Dyuman Joshi]

The problem is there is an extra space after India, thus the strings are not equal and the assertion fails -

s1 = "India 250 & 307";
s2 = "Australia 235 & 291";
pat = digitsPattern;

%Extra space
a = split(s1,pat)

a = 3×1 string array
    "India "
    " & "
    ""

b = split(s2,pat);
c = double(extract(s1,pat));
d = double(extract(s2,pat));
wickets_1 = extractAfter(s1,'/');
wickets_1 = double(extract(wickets_1,pat));
wickets_2 = extractBetween(s2,'/','d');
c_1 = sum(c) - sum(double(wickets_1));
d_1 = sum(d)-sum(double(wickets_2));

%Extra space
if c_1 > d_1
    res = sprintf("%s won by %g runs",a(1),c_1-d_1)
end

res = "India  won by 31 runs"

You can use deblank to remove trailling whitespace characters from the string -

a = deblank(a)

a = 3×1 string array
    "India"
    " &"
    ""

if c_1 > d_1
    res = sprintf("%s won by %g runs",a(1),c_1-d_1)
end

res = "India won by 31 runs"

[Shubham Shubham]

Got it, Thank you, I appreciate that!