Add bats test suite for image processing scripts

Tests cover skip-already-processed logic, cleanup, idempotency, and the config.sh single-source-of-truth invariant. bats-core, bats-assert, and bats-support added as submodules under tests/libs/.
2026-07-03 19:49:04 -04:00
parent 6901c66bcf
commit f5ed6617c5
11 changed files with 233 additions and 0 deletions
@@ -0,0 +1,50 @@
+#!/usr/bin/env bats
+
+load 'libs/bats-support/load'
+load 'libs/bats-assert/load'
+load 'helpers/common'
+
+SCRIPT="$REPO_ROOT/images_resize.sh"
+
+setup() {
+    setup_mock_env
+}
+
+teardown() {
+    teardown_mock_env
+}
+
+@test "skips JPEG that already has the processing comment" {
+    cp "$FIXTURES/processed.jpg" "$TEST_WORKDIR/img.jpg"
+    run bash -c "cd '$TEST_WORKDIR' && '$SCRIPT'"
+    assert_success
+    assert_output --partial "Skipping"
+    assert_output --partial "already processed"
+}
+
+@test "processes JPEG without the comment and embeds it" {
+    cp "$FIXTURES/unprocessed.jpg" "$TEST_WORKDIR/img.jpg"
+    run bash -c "cd '$TEST_WORKDIR' && '$SCRIPT'"
+    assert_success
+    assert_output --partial "Resized"
+    local comment
+    comment=$(identify -format "%c" "$TEST_WORKDIR/img.jpg")
+    assert_equal "$comment" "magick:resize=8mp,quality=85,sampling=4:2:0"
+}
+
+@test "re-running skips a JPEG that was just processed" {
+    cp "$FIXTURES/unprocessed.jpg" "$TEST_WORKDIR/img.jpg"
+    bash -c "cd '$TEST_WORKDIR' && '$SCRIPT'" >/dev/null 2>&1
+    run bash -c "cd '$TEST_WORKDIR' && '$SCRIPT'"
+    assert_success
+    assert_output --partial "Skipping"
+}
+
+@test "processes only JPEGs, ignores other file types" {
+    cp "$FIXTURES/unprocessed.jpg" "$TEST_WORKDIR/img.jpg"
+    echo "not an image" > "$TEST_WORKDIR/readme.txt"
+    run bash -c "cd '$TEST_WORKDIR' && '$SCRIPT'"
+    assert_success
+    assert_output --partial "Resized"
+    refute_output --partial "readme.txt"
+}