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Matrix: capture stdout for print() test

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I want to switch the print() function back to use printf()
such that it's fully compatible with all (embedded) platforms.

To still test the print function I'm capturing stdout into a file
such that the print() function can stay unchanged and the result of
the printf()s can be evaluated.
This commit is contained in:
Matthias Grob 2020-03-12 12:47:25 +01:00 committed by Julian Kent
parent c6db357c92
commit a32892926c
2 changed files with 8 additions and 8 deletions
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4
matrix/Matrix.hpp
View File

@ -350,13 +350,13 @@ public:
}
}
void print(FILE *stream = stdout) const
void print() const
{
// element: tab, point, 8 digits, 4 scientific notation chars; row: newline; string: \0 end
static const size_t n = 15*N*M + M + 1;
char * buf = new char[n];
write_string(buf, n);
fprintf(stream, "%s\n", buf);
printf("%s\n", buf);
delete[] buf;
}

12
test/matrixAssignment.cpp
View File

@ -235,13 +235,13 @@ int main()
}
// check print()
// Redirect stdout
TEST(freopen("testoutput.txt", "w", stdout) != NULL);
// write
FILE *fp = fopen("testoutput.txt", "w+");
TEST(fp != nullptr);
Comma.print(fp);
TEST(!fclose(fp));
Comma.print();
fclose(stdout);
// read
fp = fopen("testoutput.txt", "r");
FILE *fp = fopen("testoutput.txt", "r");
TEST(fp != nullptr);
TEST(!fseek(fp, 0, SEEK_SET));
for (size_t i = 0; i < len; i++) {
@ -249,7 +249,7 @@ int main()
if (c == '\n') {
break;
}
printf("%d %d %c\n", static_cast<int>(i), c, c);
printf("%d %d %d\n", static_cast<int>(i), output[i], c);
TEST(c == output[i]);
}
TEST(!fclose(fp));