Test cases for sparse checkout

The new t7000-sparse-checkout.sh test script exercises various StGit
commands in the context of a sparse checkout worktree.

Relates-to: #195

t/t7000-sparse-checkout.sh

@@ -0,0 +1,197 @@
+#!/bin/sh
+
+test_description='Test StGit with sparse checkout'
+
+. ./test-lib.sh
+
+cat >> .git/info/exclude <<EOF
+/*expected
+/*out
+EOF
+
+test_expect_success 'Setup repository' '
+    mkdir -p a b/0 b/1 c d/0 d/1 &&
+    echo alpha > a/alpha.txt &&
+    echo beta0 > b/0/beta.txt &&
+    echo beta1 > b/1/beta.txt &&
+    echo gamma > c/gamma.txt &&
+    echo delta > d/0/delta.txt &&
+    echo delta > d/1/delta.txt &&
+    echo hello > top.txt &&
+    git add a b c d top.txt &&
+    git commit -m "Initial commit"
+'
+
+cone_intact() {
+    cone_files_present && outside_cone_files_absent
+}
+
+cone_files_present() {
+    test_path_is_file a/alpha.txt &&
+    test_path_is_file b/1/beta.txt &&
+    test_path_is_file top.txt
+}
+
+outside_cone_files_absent() {
+    test_path_is_missing b/0 &&
+    test_path_is_missing c &&
+    test_path_is_missing d
+}
+
+clean_status() {
+    stg status >status-out &&
+    test_line_count = 0 status-out
+}
+
+test_expect_success 'Setup sparse checkout' '
+    git sparse-checkout set a b/1 &&
+    cone_intact
+'
+
+test_expect_success 'Initialize StGit' '
+    stg init &&
+    cone_intact
+'
+
+cat > files-expected <<EOF
+M a/alpha.txt
+EOF
+test_expect_success 'Create a patch' '
+    echo "change" >> a/alpha.txt &&
+    stg new --refresh -m patch0 &&
+    cone_intact &&
+    clean_status &&
+    stg files >files-out &&
+    test_cmp files-expected files-out
+'
+
+test_expect_success 'Edit a patch' '
+    stg edit --sign -d --save-template edit-out &&
+    sed -e "s/^\+change/+CHANGE/g" edit-out > edited-out &&
+    stg edit -f edited-out
+    stg show >out &&
+    grep "Signed-off-by:" out &&
+    grep "CHANGE" out &&
+    cone_intact &&
+    clean_status &&
+    stg files >files-out &&
+    test_cmp files-expected files-out
+'
+
+cat > files-expected <<EOF
+M a/alpha.txt
+M b/1/beta.txt
+EOF
+test_expect_success 'Refresh a patch' '
+    echo "another change" >> a/alpha.txt &&
+    echo "change" >> b/1/beta.txt &&
+    stg refresh &&
+    cone_intact &&
+    clean_status &&
+    stg files >files-out &&
+    test_cmp files-expected files-out
+'
+
+test_expect_success 'Pop a patch' '
+    stg pop &&
+    cone_intact &&
+    clean_status
+'
+
+test_expect_success 'Push a patch' '
+    stg push &&
+    cone_intact &&
+    clean_status
+'
+
+cat > files-expected <<EOF
+M b/1/beta.txt
+EOF
+test_expect_success 'Add a patch from subdir' '
+    (
+        cd b/1 &&
+        echo "change from patch1" >> beta.txt &&
+        stg new --refresh -m patch1
+    ) &&
+    cone_intact &&
+    clean_status &&
+    stg files >files-out &&
+    test_cmp files-expected files-out
+
+'
+
+cat > status-expected <<EOF
+UU b/1/beta.txt
+EOF
+test_expect_success 'Create merge conflict' '
+    stg pop -a &&
+    cone_intact &&
+    clean_status &&
+    conflict stg push patch1 &&
+    stg status >status-out &&
+    test_cmp status-expected status-out
+'
+
+test_expect_success 'Resove conflict and refresh' '
+    echo "change from patch0 and patch1" > b/1/beta.txt &&
+    stg add b &&
+    stg refresh &&
+    cone_intact &&
+    clean_status &&
+    stg files >files-out &&
+    test_cmp files-expected files-out
+'
+
+cat > files-expected <<EOF
+A a/bar.txt
+EOF
+test_expect_success 'Add patch with new file inside cone' '
+    echo "new content" > a/bar.txt &&
+    stg add a/bar.txt &&
+    stg new --refresh -m patch2 &&
+    cone_intact &&
+    clean_status &&
+    stg files >files-out &&
+    test_cmp files-expected files-out
+'
+
+cat > files-expected <<EOF
+M a/alpha.txt
+M d/0/delta.txt
+A d/outside.txt
+EOF
+test_expect_success 'Add patch with files outside cone' '
+    mkdir d &&
+    echo "stuff" > d/outside.txt &&
+    mkdir -p d/0 &&
+    echo "addition" >> d/0/delta.txt &&
+    general_error stg add d &&
+    echo "more" >> a/alpha.txt &&
+    stg add --sparse d a &&
+    stg new -r -m patch3 &&
+    cone_files_present &&
+    test_path_is_file d/outside.txt &&
+    clean_status &&
+    stg files >files-out &&
+    test_cmp files-expected files-out
+'
+
+test_expect_success 'Pop and push patch with extra-conal files' '
+    stg pop &&
+    cone_intact &&
+    clean_status &&
+    stg push &&
+    cone_intact &&
+    clean_status &&
+    test_path_is_missing d/outside.txt &&
+    stg files >files-out &&
+    test_cmp files-expected files-out
+'
+
+test_expect_success 'Delete a patch' '
+    stg delete --top &&
+    cone_intact &&
+    clean_status
+'
+
+test_done