[PATCH v4 1/3] completion: add sparse-checkout tests

["Lessley Dennington via GitGitGadget" <gitgitgadget@gmail.com>]

From: Lessley Dennington <lessleydennington@gmail.com>

Add tests for missing/incorrect components of custom tab completion for
the sparse-checkout command. These tests specifically highlight the
following:

1. git sparse-checkout <TAB> results in an incomplete list of subcommands
(it is missing reapply and add).
2. git sparse-checkout set <TAB> and git sparse-checkout add <TAB> show
both file names and directory names. While this is the correct behavior
for non-cone mode, cone mode sparse checkouts should complete only
directory names.

Although the first two of these tests currently fail, they will succeed
with the sparse-checkout modifications in git-completion.bash in the next
commit in this series.

Signed-off-by: Lessley Dennington <lessleydennington@gmail.com>
---
 t/t9902-completion.sh | 75 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 518203fbe07..6004d854102 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -1447,6 +1447,81 @@ test_expect_success 'git checkout - with --detach, complete only references' '
 	EOF
 '
 
+test_expect_failure 'sparse-checkout completes subcommands' '
+	test_completion "git sparse-checkout " <<-\EOF
+	list Z
+	init Z
+	set Z
+	add Z
+	reapply Z
+	disable Z
+	EOF
+'
+
+test_expect_failure 'cone mode sparse-checkout completes directory names' '
+	# set up sparse-checkout repo
+	git init sparse-checkout &&
+	(
+		cd sparse-checkout &&
+		mkdir -p folder1/0/1 folder2/0 folder3 &&
+		touch folder1/0/1/t.txt &&
+		touch folder2/0/t.txt &&
+		touch folder3/t.txt &&
+		git add . &&
+		git commit -am "Initial commit"
+	) &&
+
+	# initialize sparse-checkout definitions
+	git -C sparse-checkout sparse-checkout set --cone folder1/0 folder3 &&
+
+	# test tab completion
+	(
+		cd sparse-checkout &&
+		test_completion "git sparse-checkout set f" <<-\EOF
+		folder1
+		folder2
+		folder3
+		EOF
+	) &&
+
+	(
+		cd sparse-checkout &&
+		test_completion "git sparse-checkout set folder1/" <<-\EOF
+		folder1/0
+		EOF
+	) &&
+
+	(
+		cd sparse-checkout &&
+		test_completion "git sparse-checkout set folder1/0/" <<-\EOF
+		folder1/0/1
+		EOF
+	) &&
+
+	(
+		cd sparse-checkout/folder1 &&
+		test_completion "git sparse-checkout add 0" <<-\EOF
+		0
+		EOF
+	)
+'
+
+test_expect_success 'non-cone mode sparse-checkout uses bash completion' '
+	# reset sparse-checkout repo to non-cone mode
+	git -C sparse-checkout sparse-checkout disable &&
+	git -C sparse-checkout sparse-checkout set &&
+
+	# test tab completion
+	(
+		cd sparse-checkout &&
+		# expected to be empty since we have not configured
+		# custom completion for non-cone mode
+		test_completion "git sparse-checkout set f" <<-\EOF
+
+		EOF
+	)
+'
+
 test_expect_success 'git switch - with -d, complete all references' '
 	test_completion "git switch -d " <<-\EOF
 	HEAD Z
-- 
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