test-lib.sh: introduce and use $EMPTY_TREE

This is a special SHA1. Let's keep it at one place, easier to replace
later when the hash change comes, easier to recognize.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
index 60811a3a7ca56f995ecda5944121127e2a330bc0..1aa5093f36ea61a75cb11de5a65ed11b2b3b4e65 100755 (executable)
--- a/t/t0000-basic.sh
+++ b/t/t0000-basic.sh
@@ -834,7 +834,7 @@ test_expect_success 'git write-tree should be able to write an empty tree' '
 '
 
 test_expect_success 'validate object ID of a known tree' '
-       test "$tree" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904
+       test "$tree" = $EMPTY_TREE
 '
 
 # Various types of objects

diff --git a/t/t1100-commit-tree-options.sh b/t/t1100-commit-tree-options.sh
index b7e9b4fc5b365897d80501d1c49d70ad47740acc..ae66ba5babf347f12f2c4cb213b0de72ea980da2 100755 (executable)
--- a/t/t1100-commit-tree-options.sh
+++ b/t/t1100-commit-tree-options.sh
@@ -15,7 +15,7 @@ Also make sure that command line parser understands the normal
 . ./test-lib.sh
 
 cat >expected <<EOF
-tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904
+tree $EMPTY_TREE
 author Author Name <author@email> 1117148400 +0000
 committer Committer Name <committer@email> 1117150200 +0000
 

diff --git a/t/t4010-diff-pathspec.sh b/t/t4010-diff-pathspec.sh
index 43c488b545e6acc02bab9d496e33c37b99f49c7a..35b35a81c8ce38b3fe29f33412d2e7c9ff1bf68d 100755 (executable)
--- a/t/t4010-diff-pathspec.sh
+++ b/t/t4010-diff-pathspec.sh
@@ -78,8 +78,6 @@ test_expect_success 'diff-tree pathspec' '
        test_cmp expected current
 '
 
-EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
-
 test_expect_success 'diff-tree with wildcard shows dir also matches' '
        git diff-tree --name-only $EMPTY_TREE $tree -- "f*" >result &&
        echo file0 >expected &&

diff --git a/t/t4054-diff-bogus-tree.sh b/t/t4054-diff-bogus-tree.sh
index 1d6efab3c53f673298c4e1911fd1cb4756be59f6..18f42c5fff9a6e3ccb56f9e3122c6c0469ad81a9 100755 (executable)
--- a/t/t4054-diff-bogus-tree.sh
+++ b/t/t4054-diff-bogus-tree.sh
@@ -3,8 +3,6 @@
 test_description='test diff with a bogus tree containing the null sha1'
 . ./test-lib.sh
 
-empty_tree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
-
 test_expect_success 'create bogus tree' '
        bogus_tree=$(
                printf "100644 fooQQQQQQQQQQQQQQQQQQQQQ" |
@@ -22,13 +20,13 @@ test_expect_success 'create tree with matching file' '
 
 test_expect_success 'raw diff shows null sha1 (addition)' '
        echo ":000000 100644 $_z40 $_z40 A      foo" >expect &&
-       git diff-tree $empty_tree $bogus_tree >actual &&
+       git diff-tree $EMPTY_TREE $bogus_tree >actual &&
        test_cmp expect actual
 '
 
 test_expect_success 'raw diff shows null sha1 (removal)' '
        echo ":100644 000000 $_z40 $_z40 D      foo" >expect &&
-       git diff-tree $bogus_tree $empty_tree >actual &&
+       git diff-tree $bogus_tree $EMPTY_TREE >actual &&
        test_cmp expect actual
 '
 
@@ -57,11 +55,11 @@ test_expect_success 'raw diff shows null sha1 (index)' '
 '
 
 test_expect_success 'patch fails due to bogus sha1 (addition)' '
-       test_must_fail git diff-tree -p $empty_tree $bogus_tree
+       test_must_fail git diff-tree -p $EMPTY_TREE $bogus_tree
 '
 
 test_expect_success 'patch fails due to bogus sha1 (removal)' '
-       test_must_fail git diff-tree -p $bogus_tree $empty_tree
+       test_must_fail git diff-tree -p $bogus_tree $EMPTY_TREE
 '
 
 test_expect_success 'patch fails due to bogus sha1 (modification)' '

diff --git a/t/t5504-fetch-receive-strict.sh b/t/t5504-fetch-receive-strict.sh
index 44f3d5fb284e9848180df9ed9cfbc44a91762277..9b19cff729381b3a8f81f113a5407ac9f9d97cda 100755 (executable)
--- a/t/t5504-fetch-receive-strict.sh
+++ b/t/t5504-fetch-receive-strict.sh
@@ -115,8 +115,8 @@ test_expect_success 'push with transfer.fsckobjects' '
        test_cmp exp act
 '
 
-cat >bogus-commit <<\EOF
-tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904
+cat >bogus-commit <<EOF
+tree $EMPTY_TREE
 author Bugs Bunny 1234567890 +0000
 committer Bugs Bunny <bugs@bun.ni> 1234567890 +0000
 

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 0055ebba46d539f30b9484335501571c3b4879bd..85f4c6d5d937c11128620d84fd3db35909f9c787 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -162,6 +162,8 @@ _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 # Zero SHA-1
 _z40=0000000000000000000000000000000000000000
 
+EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+
 # Line feed
 LF='
 '
@@ -170,7 +172,7 @@ LF='
 # when case-folding filenames
 u200c=$(printf '\342\200\214')
 
-export _x05 _x40 _z40 LF u200c
+export _x05 _x40 _z40 LF u200c EMPTY_TREE
 
 # Each test should start with something like this, after copyright notices:
 #