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"""Tests for generate_basename(), generate_email_filename(), generate_attachment_filename()."""
import sys
import os
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
import importlib.util
spec = importlib.util.spec_from_file_location(
"eml_script",
os.path.join(os.path.dirname(__file__), '..', 'eml-view-and-extract-attachments.py')
)
eml_script = importlib.util.module_from_spec(spec)
spec.loader.exec_module(eml_script)
generate_basename = eml_script.generate_basename
generate_email_filename = eml_script.generate_email_filename
generate_attachment_filename = eml_script.generate_attachment_filename
# --- generate_basename ---
class TestGenerateBasename:
def test_standard_from_and_date(self):
metadata = {
'from': 'Jonathan Smith <jsmith@example.com>',
'date': 'Wed, 05 Feb 2026 11:36:00 -0600',
}
assert generate_basename(metadata) == "2026-02-05-1136-Jonathan"
def test_from_with_display_name_first_token(self):
metadata = {
'from': 'C Ciarm <cciarm@example.com>',
'date': 'Wed, 05 Feb 2026 11:36:00 -0600',
}
result = generate_basename(metadata)
assert result == "2026-02-05-1136-C"
def test_from_without_display_name(self):
metadata = {
'from': 'jsmith@example.com',
'date': 'Wed, 05 Feb 2026 11:36:00 -0600',
}
result = generate_basename(metadata)
assert result == "2026-02-05-1136-jsmith"
def test_missing_date(self):
metadata = {
'from': 'Jonathan Smith <jsmith@example.com>',
'date': None,
}
result = generate_basename(metadata)
assert result == "unknown-Jonathan"
def test_missing_from(self):
metadata = {
'from': None,
'date': 'Wed, 05 Feb 2026 11:36:00 -0600',
}
result = generate_basename(metadata)
assert result == "2026-02-05-1136-unknown"
def test_both_missing(self):
metadata = {'from': None, 'date': None}
result = generate_basename(metadata)
assert result == "unknown-unknown"
def test_unparseable_date(self):
metadata = {
'from': 'Jonathan <j@example.com>',
'date': 'not a real date',
}
result = generate_basename(metadata)
assert result == "unknown-Jonathan"
def test_none_date_no_crash(self):
metadata = {'from': 'Test <t@e.com>', 'date': None}
# Should not raise
result = generate_basename(metadata)
assert "unknown" in result
# --- generate_email_filename ---
class TestGenerateEmailFilename:
def test_standard_subject(self):
result = generate_email_filename(
"2026-02-05-1136-Jonathan",
"Re: Fw: 4319 Danneel Street"
)
assert result == "2026-02-05-1136-Jonathan-EMAIL-Re-Fw-4319-Danneel-Street"
def test_subject_with_special_chars(self):
result = generate_email_filename(
"2026-02-05-1136-Jonathan",
"Update: Meeting (draft) & notes!"
)
# Colons, parens, ampersands, exclamation stripped
assert "EMAIL" in result
assert ":" not in result
assert "(" not in result
assert ")" not in result
assert "&" not in result
assert "!" not in result
def test_none_subject(self):
result = generate_email_filename("2026-02-05-1136-Jonathan", None)
assert result == "2026-02-05-1136-Jonathan-EMAIL-no-subject"
def test_empty_subject(self):
result = generate_email_filename("2026-02-05-1136-Jonathan", "")
assert result == "2026-02-05-1136-Jonathan-EMAIL-no-subject"
def test_very_long_subject(self):
long_subject = "A" * 100 + " " + "B" * 100
result = generate_email_filename("2026-02-05-1136-Jonathan", long_subject)
# The cleaned subject part should be truncated
# basename (27) + "-EMAIL-" (7) + subject
# Subject itself is limited to 80 chars by _clean_for_filename
subject_part = result.split("-EMAIL-")[1]
assert len(subject_part) <= 80
# --- generate_attachment_filename ---
class TestGenerateAttachmentFilename:
def test_standard_attachment(self):
result = generate_attachment_filename(
"2026-02-05-1136-Jonathan",
"Ltr Carrollton.pdf"
)
assert result == "2026-02-05-1136-Jonathan-ATTACH-Ltr-Carrollton.pdf"
def test_filename_with_spaces_and_parens(self):
result = generate_attachment_filename(
"2026-02-05-1136-Jonathan",
"Document (final copy).pdf"
)
assert " " not in result
assert "(" not in result
assert ")" not in result
assert result.endswith(".pdf")
def test_preserves_extension(self):
result = generate_attachment_filename(
"2026-02-05-1136-Jonathan",
"photo.jpg"
)
assert result.endswith(".jpg")
def test_none_filename(self):
result = generate_attachment_filename("2026-02-05-1136-Jonathan", None)
assert result == "2026-02-05-1136-Jonathan-ATTACH-unnamed"
def test_empty_filename(self):
result = generate_attachment_filename("2026-02-05-1136-Jonathan", "")
assert result == "2026-02-05-1136-Jonathan-ATTACH-unnamed"
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