Add backend unit tests

- Add unit testing code in backend/tests/
- Change to snake-case for script/file/directory names
- Use os.path.join() instead of '/'
- Refactor script code into function defs and a main-guard
- Make global vars all-caps

Some fixes:
- For getting descriptions, some wiki redirects weren't properly resolved
- Linked images were sub-optimally propagated
- Generation of reduced trees assumed a wiki-id association implied a description
- Tilo.py had potential null dereferences by not always using a reduced node set
- EOL image downloading didn't properly wait for all threads to end when finishing

1 files changed, 46 insertions, 0 deletions

diff --git a/backend/tests/eol/test_review_imgs.py b/backend/tests/eol/test_review_imgs.py
new file mode 100644
index 0000000..49c09bb
--- /dev/null
+++ b/backend/tests/eol/test_review_imgs.py
@@ -0,0 +1,46 @@
+import unittest
+import tempfile, os, shutil
+
+from tests.common import createTestDbTable
+from tol_data.eol.review_imgs import reviewImgs
+
+CLICK_IMG = os.path.join(os.path.dirname(__file__), '..', 'green.png')
+AVOID_IMG = os.path.join(os.path.dirname(__file__), '..', 'red.png')
+
+class TestReviewImgs(unittest.TestCase):
+	def test_review(self):
+		with tempfile.TemporaryDirectory() as tempDir:
+			# Create input images
+			imgDir = os.path.join(tempDir, 'imgs_for_review')
+			os.mkdir(imgDir)
+			shutil.copy(CLICK_IMG, os.path.join(imgDir, '1 10.jpg'))
+			shutil.copy(CLICK_IMG, os.path.join(imgDir, '2 20.jpeg'))
+			shutil.copy(AVOID_IMG, os.path.join(imgDir, '2 21.gif'))
+			shutil.copy(AVOID_IMG, os.path.join(imgDir, '2 22.jpg'))
+			shutil.copy(AVOID_IMG, os.path.join(imgDir, '3 30.png'))
+			shutil.copy(AVOID_IMG, os.path.join(imgDir, '3 31.jpg'))
+			# Create temp extra-info db
+			extraInfoDb = os.path.join(tempDir, 'data.db')
+			createTestDbTable(
+				extraInfoDb,
+				'CREATE TABLE eol_ids (name TEXT PRIMARY KEY, id INT)',
+				'INSERT INTO eol_ids VALUES (?, ?)',
+				{
+					('one', 1),
+					('two', 2),
+					('three', 3),
+				}
+			)
+			createTestDbTable(
+				extraInfoDb,
+				'CREATE TABLE names(name TEXT, alt_name TEXT, pref_alt INT, src TEXT, PRIMARY KEY(name, alt_name))',
+				'INSERT OR IGNORE INTO names VALUES (?, ?, ?, ?)',
+				{
+					('two','II',1,'eol'),
+				}
+			)
+			# Run
+			outDir = os.path.join(tempDir, 'imgs')
+			reviewImgs(imgDir, outDir, extraInfoDb)
+			# Check
+			self.assertEqual(set(os.listdir(outDir)), {'1 10.jpg', '2 20.jpeg'})