#!/bin/sh

global test_description := ''test read-tree into a fresh index file''

source ./test-lib.sh

test_expect_success setup '
	echo one >a &&
	git add a &&
	git commit -m initial
'

test_expect_success 'non-existent index file' '
	rm -f new-index &&
	GIT_INDEX_FILE=new-index git read-tree master
'

test_expect_success 'empty index file' '
	rm -f new-index &&
	> new-index &&
	GIT_INDEX_FILE=new-index git read-tree master
'

test_done

(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(SQ <"test read-tree into a fresh index file">)}
          spids: [4]
        )
      ]
      spids: [4]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(test_expect_success)} {(setup)} 
      {(SQ <"\n"> <"\techo one >a &&\n"> <"\tgit add a &&\n"> <"\tgit commit -m initial\n">)}
    )
    (C {(test_expect_success)} {(SQ <"non-existent index file">)} 
      {(SQ <"\n"> <"\trm -f new-index &&\n"> <"\tGIT_INDEX_FILE=new-index git read-tree master\n">)}
    )
    (C {(test_expect_success)} {(SQ <"empty index file">)} 
      {
        (SQ <"\n"> <"\trm -f new-index &&\n"> <"\t> new-index &&\n"> 
          <"\tGIT_INDEX_FILE=new-index git read-tree master\n">
        )
      }
    )
    (C {(test_done)})
  ]
)