#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#

global test_description := ''More rename detection tests.

The rename detection logic should be able to detect pure rename or
copy of symbolic links, but should not produce rename/copy followed
by an edit for them.
''
source ./test-lib.sh
source "$TEST_DIRECTORY"/diff-lib.sh

test_expect_success SYMLINKS \
    'prepare reference tree' \
    'echo xyzzy | tr -d ''\''\''012 >yomin &&
     ln -s xyzzy frotz &&
    git update-index --add frotz yomin &&
    tree=$(git write-tree) &&
    echo $tree'

test_expect_success SYMLINKS \
    'prepare work tree' \
    'mv frotz rezrov &&
     rm -f yomin &&
     ln -s xyzzy nitfol &&
     ln -s xzzzy bozbar &&
    git update-index --add --remove frotz rezrov nitfol bozbar yomin'

# tree has frotz pointing at xyzzy, and yomin that contains xyzzy to
# confuse things.  work tree has rezrov (xyzzy) nitfol (xyzzy) and
# bozbar (xzzzy).
# rezrov and nitfol are rename/copy of frotz and bozbar should be
# a new creation.

test_expect_success SYMLINKS 'setup diff output' "
    GIT_DIFF_OPTS=--unified=0 git diff-index -C -p $tree >current &&
    cat >expected <<\EOF
diff --git a/bozbar b/bozbar
new file mode 120000
--- /dev/null
+++ b/bozbar
@@ -0,0 +1 @@
+xzzzy
\ No newline at end of file
diff --git a/frotz b/nitfol
similarity index 100%
copy from frotz
copy to nitfol
diff --git a/frotz b/rezrov
similarity index 100%
rename from frotz
rename to rezrov
diff --git a/yomin b/yomin
deleted file mode 100644
--- a/yomin
+++ /dev/null
@@ -1 +0,0 @@
-xyzzy
\ No newline at end of file
EOF
"

test_expect_success SYMLINKS \
    'validate diff output' \
    'compare_diff_patch current expected'

test_done
(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: 
            {
              (SQ <"More rename detection tests.\n"> <"\n"> 
                <"The rename detection logic should be able to detect pure rename or\n"> <"copy of symbolic links, but should not produce rename/copy followed\n"> <"by an edit for them.\n">
              )
            }
          spids: [13]
        )
      ]
      spids: [13]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(.)} {(DQ ($ VSub_Name "$TEST_DIRECTORY")) (/diff-lib.sh)})
    (C {(test_expect_success)} {(SYMLINKS)} {(SQ <"prepare reference tree">)} 
      {(SQ <"echo xyzzy | tr -d ">) (EscapedLiteralPart token:<Lit_EscapedChar "\\\\">) 
        (EscapedLiteralPart token:<Lit_EscapedChar "\\\\">) 
        (SQ <"012 >yomin &&\n"> <"     ln -s xyzzy frotz &&\n"> 
          <"    git update-index --add frotz yomin &&\n"> <"    tree=$(git write-tree) &&\n"> <"    echo $tree">
        )
      }
    )
    (C {(test_expect_success)} {(SYMLINKS)} {(SQ <"prepare work tree">)} 
      {
        (SQ <"mv frotz rezrov &&\n"> <"     rm -f yomin &&\n"> <"     ln -s xyzzy nitfol &&\n"> 
          <"     ln -s xzzzy bozbar &&\n"> <"    git update-index --add --remove frotz rezrov nitfol bozbar yomin">
        )
      }
    )
    (C {(test_expect_success)} {(SYMLINKS)} {(SQ <"setup diff output">)} 
      {
        (DQ ("\n") ("    GIT_DIFF_OPTS=--unified=0 git diff-index -C -p ") ($ VSub_Name "$tree") 
          (" >current &&\n") ("    cat >expected <<") (EscapedLiteralPart token:<Lit_EscapedChar "\\E">) ("OF\n") 
          ("diff --git a/bozbar b/bozbar\n") ("new file mode 120000\n") ("--- /dev/null\n") ("+++ b/bozbar\n") ("@@ -0,0 +1 @@\n") ("+xzzzy\n") 
          (EscapedLiteralPart token:<Lit_EscapedChar "\\ ">) ("No newline at end of file\n") ("diff --git a/frotz b/nitfol\n") ("similarity index 100%\n") 
          ("copy from frotz\n") ("copy to nitfol\n") ("diff --git a/frotz b/rezrov\n") ("similarity index 100%\n") 
          ("rename from frotz\n") ("rename to rezrov\n") ("diff --git a/yomin b/yomin\n") ("deleted file mode 100644\n") ("--- a/yomin\n") 
          ("+++ /dev/null\n") ("@@ -1 +0,0 @@\n") ("-xyzzy\n") (EscapedLiteralPart token:<Lit_EscapedChar "\\ ">) 
          ("No newline at end of file\n") ("EOF\n")
        )
      }
    )
    (C {(test_expect_success)} {(SYMLINKS)} {(SQ <"validate diff output">)} 
      {(SQ <"compare_diff_patch current expected">)}
    )
    (C {(test_done)})
  ]
)