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t4033-diff-patience: factor out tests

Group the test cases into two functions, test_diff_(frobnitz|unique).
This in preparation for the histogram diff algorithm, which would also
re-use these test cases.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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1 parent 1d26b25 commit 46c8f2988dc9a6012babd5833a6245ceff214483 @rctay rctay committed with gitster Jul 7, 2011
Showing with 168 additions and 159 deletions.
  1. +165 −0 t/lib-diff-alternative.sh
  2. +3 −159 t/t4033-diff-patience.sh
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@@ -0,0 +1,165 @@
+#!/bin/sh
+
+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
+ '
+}
+
View
@@ -3,166 +3,10 @@
test_description='patience diff algorithm'
. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-diff-alternative.sh
-cat >file1 <<\EOF
-#include <stdio.h>
+test_diff_frobnitz "patience"
-// 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
-
-test_expect_success 'patience diff' '
-
- test_must_fail git diff --no-index --patience file1 file2 > output &&
- test_cmp expect output
-
-'
-
-test_expect_success 'patience diff output is valid' '
-
- mv file2 expect &&
- git apply < output &&
- test_cmp expect file2
-
-'
-
-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
-
-test_expect_success 'completely different files' '
-
- test_must_fail git diff --no-index --patience uniq1 uniq2 > output &&
- test_cmp expect output
-
-'
+test_diff_unique "patience"
test_done

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