[GSoC][PATCH v3] t2000: modernise overall structure

[Zakariyah Ali <zakariyahali100@gmail.com>]

This test script that dates back to 2005 certainly shows its age and
both its style and the way the tests are laid out do not match the
modern standard.

 * Executables that prepare the data used to test the command should
   be inside the test_expect_success block in modern tests.

 * In modern tests, running a command that is being tested, making
   sure it succeeds, and inspecting other side effects that are
   expected, are all done in a single test_expect_success block.

 * A test_expect_success block in modern tests are laid out as

        test_expect_success 'title of the test' '
                body of the test &&
                ...
                body of the test
        '

   not as

        test_expect_success \
                'title of the test' \
                'body of the test &&
                ...
                body of the test'

   which is in a prehistoric style.

 * In modern tests, each &&-chained statement in the body of the
   test_expect_success block are indented with a horizontal tab,
   unlike prehistoric style that used 4-space indent.

Signed-off-by: Zakariyah Ali <zakariyahali100@gmail.com>
---
 t/t2000-conflict-when-checking-files-out.sh | 122 +++++++++++---------
 1 file changed, 66 insertions(+), 56 deletions(-)

diff --git a/t/t2000-conflict-when-checking-files-out.sh b/t/t2000-conflict-when-checking-files-out.sh
index f18616ad2b..af199d8191 100755
--- a/t/t2000-conflict-when-checking-files-out.sh
+++ b/t/t2000-conflict-when-checking-files-out.sh
@@ -35,30 +35,30 @@ show_files() {
 	sed -e 's/^\([0-9]*\)	[^ ]*	[0-9a-f]*	/tr: \1 /'
 }
 
-date >path0
-mkdir path1
-date >path1/file1
-
-test_expect_success \
-    'git update-index --add various paths.' \
-    'git update-index --add path0 path1/file1'
-
-rm -fr path0 path1
-mkdir path0
-date >path0/file0
-date >path1
+test_expect_success 'prepare files path0 and path1/file1' '
+	date >path0 &&
+	mkdir path1 &&
+	date >path1/file1 &&
+	git update-index --add path0 path1/file1
+'
 
-test_expect_success \
-    'git checkout-index without -f should fail on conflicting work tree.' \
-    'test_must_fail git checkout-index -a'
+test_expect_success 'prepare working tree files with D/F conflicts' '
+	rm -fr path0 path1 &&
+	mkdir path0 &&
+	date >path0/file0 &&
+	date >path1
+'
 
-test_expect_success \
-    'git checkout-index with -f should succeed.' \
-    'git checkout-index -f -a'
+test_expect_success 'git checkout-index without -f should fail on conflicting work tree.' '
+	test_must_fail git checkout-index -a
+'
 
-test_expect_success \
-    'git checkout-index conflicting paths.' \
-    'test -f path0 && test -d path1 && test -f path1/file1'
+test_expect_success 'git checkout-index with -f should succeed.' '
+	git checkout-index -f -a &&
+	test_path_is_file path0 &&
+	test_path_is_dir path1 &&
+	test_path_is_file path1/file1
+'
 
 test_expect_success SYMLINKS 'checkout-index -f twice with --prefix' '
 	mkdir -p tar/get &&
@@ -83,53 +83,63 @@ test_expect_success SYMLINKS 'checkout-index -f twice with --prefix' '
 # path path3 is occupied by a non-directory.  With "-f" it should remove
 # the symlink path3 and create directory path3 and file path3/file1.
 
-mkdir path2
-date >path2/file0
-test_expect_success \
-    'git update-index --add path2/file0' \
-    'git update-index --add path2/file0'
-test_expect_success \
-    'writing tree out with git write-tree' \
-    'tree1=$(git write-tree)'
+test_expect_success 'prepare path2/file0 and index' '
+	mkdir path2 &&
+	date >path2/file0 &&
+	git update-index --add path2/file0
+'
+
+test_expect_success 'write tree with path2/file0' '
+	tree1=$(git write-tree)
+'
+
 test_debug 'show_files $tree1'
 
-mkdir path3
-date >path3/file1
-test_expect_success \
-    'git update-index --add path3/file1' \
-    'git update-index --add path3/file1'
-test_expect_success \
-    'writing tree out with git write-tree' \
-    'tree2=$(git write-tree)'
+test_expect_success 'prepare path3/file1 and index' '
+	mkdir path3 &&
+	date >path3/file1 &&
+	git update-index --add path3/file1
+'
+
+test_expect_success 'write tree with path3/file1' '
+	tree2=$(git write-tree)
+'
+
 test_debug 'show_files $tree2'
 
-rm -fr path3
-test_expect_success \
-    'read previously written tree and checkout.' \
-    'git read-tree -m $tree1 && git checkout-index -f -a'
+test_expect_success 'read previously written tree and checkout.' '
+	rm -fr path3 &&
+	git read-tree -m $tree1 &&
+	git checkout-index -f -a
+'
+
 test_debug 'show_files $tree1'
 
-test_expect_success \
-    'add a symlink' \
-    'test_ln_s_add path2 path3'
-test_expect_success \
-    'writing tree out with git write-tree' \
-    'tree3=$(git write-tree)'
+test_expect_success 'add a symlink' '
+	test_ln_s_add path2 path3
+'
+
+test_expect_success 'write tree with symlink path3' '
+	tree3=$(git write-tree)
+'
+
 test_debug 'show_files $tree3'
 
 # Morten says "Got that?" here.
 # Test begins.
 
-test_expect_success \
-    'read previously written tree and checkout.' \
-    'git read-tree $tree2 && git checkout-index -f -a'
+test_expect_success 'read previously written tree and checkout.' '
+	git read-tree $tree2 &&
+	git checkout-index -f -a
+'
+
 test_debug 'show_files $tree2'
 
-test_expect_success \
-    'checking out conflicting path with -f' \
-    'test ! -h path2 && test -d path2 &&
-     test ! -h path3 && test -d path3 &&
-     test ! -h path2/file0 && test -f path2/file0 &&
-     test ! -h path3/file1 && test -f path3/file1'
+test_expect_success 'checking out conflicting path with -f' '
+	test_path_is_dir_not_symlink path2 &&
+	test_path_is_dir_not_symlink path3 &&
+	test_path_is_file_not_symlink path2/file0 &&
+	test_path_is_file_not_symlink path3/file1
+'
 
 test_done
-- 
2.43.0