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# Helpers shared by the test scripts for diff algorithms (patience,
# histogram, etc).
test_diff_frobnitz() {
cat >file1 <<\EOF
#include <stdio.h>
// Frobs foo heartily
int frobnitz(int foo)
{
int i;
for(i = 0; i < 10; i++)
{
printf("Your answer is: ");
printf("%d\n", foo);
}
}
int fact(int n)
{
if(n > 1)
{
return fact(n-1) * n;
}
return 1;
}
int main(int argc, char **argv)
{
frobnitz(fact(10));
}
EOF
cat >file2 <<\EOF
#include <stdio.h>
int fib(int n)
{
if(n > 2)
{
return fib(n-1) + fib(n-2);
}
return 1;
}
// Frobs foo heartily
int frobnitz(int foo)
{
int i;
for(i = 0; i < 10; i++)
{
printf("%d\n", foo);
}
}
int main(int argc, char **argv)
{
frobnitz(fib(10));
}
EOF
cat >expect <<\EOF
diff --git a/file1 b/file2
index 6faa5a3..e3af329 100644
--- a/file1
+++ b/file2
@@ -1,26 +1,25 @@
#include <stdio.h>
+int fib(int n)
+{
+ if(n > 2)
+ {
+ return fib(n-1) + fib(n-2);
+ }
+ return 1;
+}
+
// Frobs foo heartily
int frobnitz(int foo)
{
int i;
for(i = 0; i < 10; i++)
{
- printf("Your answer is: ");
printf("%d\n", foo);
}
}
-int fact(int n)
-{
- if(n > 1)
- {
- return fact(n-1) * n;
- }
- return 1;
-}
-
int main(int argc, char **argv)
{
- frobnitz(fact(10));
+ frobnitz(fib(10));
}
EOF
STRATEGY=$1
test_expect_success "$STRATEGY diff" '
test_must_fail git diff --no-index "--$STRATEGY" file1 file2 > output &&
test_cmp expect output
'
test_expect_success "$STRATEGY diff output is valid" '
mv file2 expect &&
git apply < output &&
test_cmp expect file2
'
}
test_diff_unique() {
cat >uniq1 <<\EOF
1
2
3
4
5
6
EOF
cat >uniq2 <<\EOF
a
b
c
d
e
f
EOF
cat >expect <<\EOF
diff --git a/uniq1 b/uniq2
index b414108..0fdf397 100644
--- a/uniq1
+++ b/uniq2
@@ -1,6 +1,6 @@
-1
-2
-3
-4
-5
-6
+a
+b
+c
+d
+e
+f
EOF
STRATEGY=$1
test_expect_success 'completely different files' '
test_must_fail git diff --no-index "--$STRATEGY" uniq1 uniq2 > output &&
test_cmp expect output
'
}