[PATCH 3/3] ls-tree: add unit tests for arguments

[Joshua Nelson <jyn514@gmail.com>]

Signed-off-by: Joshua Nelson <jyn514@gmail.com>
---
 t/t3104-ls-tree-optional-args.sh | 43 ++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 t/t3104-ls-tree-optional-args.sh

diff --git t/t3104-ls-tree-optional-args.sh t/t3104-ls-tree-optional-args.sh
new file mode 100644
index 000000000..5917563a7
--- /dev/null
+++ t/t3104-ls-tree-optional-args.sh
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+test_description='ls-tree test (optional args)
+
+This test tries to run git-ls-tree with various combinations of options.'
+
+. ./test-lib.sh
+
+test_expect_success 'initial setup' '
+echo hi > test && cp test test2 && git add test test2 && git commit -m initial'
+
+# cat appends newlines after every file
+test_expect_success 'succeed when given no args' 'git ls-tree'
+
+test_expect_success 'succeed when given only --' 'git ls-tree'
+
+test_expect_success 'add second commit' '
+echo hi > test3 && git add test3 && git commit -m "commit 2"'
+
+test_expect_success 'succeed when given revision' '
+git ls-tree HEAD~1'
+
+test_expect_success 'succeed when given revision and --' '
+git ls-tree HEAD~1 --'
+
+test_expect_success 'succeed when given -- and file' '
+git ls-tree -- test3'
+
+test_expect_success 'do nothing when given bad files' '
+git ls-tree -- bad_files'
+
+test_expect_success 'succeed when given file from past revision' '
+git ls-tree HEAD~1 test'
+
+test_expect_success 'succeed when given only file' 'git ls-tree test'
+
+test_expect_success 'raise error when given bad args' '
+test_must_fail  git ls-tree HEAD HEAD --'
+
+test_expect_success 'raise error when given bad revision' '
+test_must_fail git ls-tree bad_revision --'
+
+test_done
-- 
2.18.GIT