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import warnings
from html.parser import HTMLParser
from io import StringIO
from agate import Table
from agate.data_types import Number, Text
from agate.testcase import AgateTestCase
class TableHTMLParser(HTMLParser):
"""
Parser for use in testing HTML rendering of tables.
"""
def __init__(self):
warnings.simplefilter('ignore')
try:
HTMLParser.__init__(self)
finally:
warnings.resetwarnings()
self.has_table = False
self.has_thead = False
self.has_tbody = False
self.header_rows = []
self.body_rows = []
self._in_table = False
self._in_thead = False
self._in_tbody = False
self._in_cell = False
self._cell_data = None
def handle_starttag(self, tag, attrs):
if tag == 'table':
self._in_table = True
return
if tag == 'thead':
self._in_thead = True
return
if tag == 'tbody':
self._in_tbody = True
return
if tag == 'tr':
self._current_row = []
return
if tag in ('td', 'th'):
self._in_cell = True
return
def handle_endtag(self, tag):
if tag == 'table':
if self._in_table:
self.has_table = True
self._in_table = False
return
if tag == 'thead':
if self._in_thead:
self.has_thead = True
self._in_thead = False
return
if tag == 'tbody':
if self._in_tbody:
self.has_tbody = True
self._in_tbody = False
return
if tag == 'tr':
if self._in_tbody:
self.body_rows.append(self._current_row)
elif self._in_thead:
self.header_rows.append(self._current_row)
return
if tag in ('td', 'th'):
self._current_row.append(self._cell_data)
self._cell_data = None
self._in_cell = False
return
def handle_data(self, data):
if self._in_cell:
self._cell_data = data
return
class TestPrintHTML(AgateTestCase):
def setUp(self):
self.rows = (
(1, 4, 'a'),
(2, 3, 'b'),
(None, 2, '👍')
)
self.number_type = Number()
self.text_type = Text()
self.column_names = ['one', 'two', 'three']
self.column_types = [self.number_type, self.number_type, self.text_type]
def test_print_html(self):
table = Table(self.rows, self.column_names, self.column_types)
table_html = StringIO()
table.print_html(output=table_html)
table_html = table_html.getvalue()
parser = TableHTMLParser()
parser.feed(table_html)
self.assertIs(parser.has_table, True)
self.assertIs(parser.has_tbody, True)
self.assertIs(parser.has_thead, True)
self.assertEqual(len(parser.header_rows), 1)
self.assertEqual(len(parser.body_rows), len(table.rows))
header_cols = parser.header_rows[0]
self.assertEqual(len(header_cols), len(table.column_names))
for i, column_name in enumerate(table.column_names):
self.assertEqual(header_cols[i], column_name)
for row_num, row in enumerate(table.rows):
html_row = parser.body_rows[row_num]
self.assertEqual(len(html_row), len(row))
def test_print_html_tags(self):
table = Table(self.rows, self.column_names, self.column_types)
output = StringIO()
table.print_html(output=output)
html = output.getvalue()
self.assertEqual(html.count('<tr>'), 4)
self.assertEqual(html.count('<th>'), 3)
self.assertEqual(html.count('<td '), 9)
def test_print_html_max_rows(self):
table = Table(self.rows, self.column_names, self.column_types)
output = StringIO()
table.print_html(max_rows=2, output=output)
html = output.getvalue()
self.assertEqual(html.count('<tr>'), 4)
self.assertEqual(html.count('<th>'), 3)
self.assertEqual(html.count('<td '), 9)
def test_print_html_max_columns(self):
table = Table(self.rows, self.column_names, self.column_types)
output = StringIO()
table.print_html(max_columns=2, output=output)
html = output.getvalue()
self.assertEqual(html.count('<tr>'), 4)
self.assertEqual(html.count('<th>'), 3)
self.assertEqual(html.count('<td '), 9)
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