mirror of
https://github.com/jsvine/pdfplumber.git
synced 2026-08-29 16:40:24 +08:00
Jeremy Singer-Vine
260 lines
9.0 KiB
Python
260 lines
9.0 KiB
Python
#!/usr/bin/env python
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import logging
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import os
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import unittest
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import pdfplumber
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logging.disable(logging.ERROR)
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HERE = os.path.abspath(os.path.dirname(__file__))
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class Test(unittest.TestCase):
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def test_issue_13(self):
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"""
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Test slightly simplified from gist here:
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https://github.com/jsvine/pdfplumber/issues/13
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"""
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pdf = pdfplumber.open(
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os.path.join(HERE, "pdfs/issue-13-151201DSP-Fond-581-90D.pdf")
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)
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# Only find checkboxes this size
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RECT_WIDTH = 9.3
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RECT_HEIGHT = 9.3
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RECT_TOLERANCE = 2
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def filter_rects(rects):
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# Just get the rects that are the right size to be checkboxes
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rects_found = []
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for rect in rects:
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if (
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rect["height"] > (RECT_HEIGHT - RECT_TOLERANCE)
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and (rect["height"] < RECT_HEIGHT + RECT_TOLERANCE)
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and (rect["width"] < RECT_WIDTH + RECT_TOLERANCE)
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and (rect["width"] < RECT_WIDTH + RECT_TOLERANCE)
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):
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rects_found.append(rect)
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return rects_found
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def determine_if_checked(checkbox, checklines):
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"""
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This figures out if the bounding box of (either) line used to make
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one half of the 'x' is the right size and overlaps with a rectangle.
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This isn't foolproof, but works for this case.
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It's not totally clear (to me) how common this style of checkboxes
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are used, and whether this is useful approach to them.
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Also note there should be *two* matching LTCurves for each checkbox.
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But here we only test there's at least one.
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"""
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for cl in checklines:
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if (
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checkbox["height"] > (RECT_HEIGHT - RECT_TOLERANCE)
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and (checkbox["height"] < RECT_HEIGHT + RECT_TOLERANCE)
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and (checkbox["width"] < RECT_WIDTH + RECT_TOLERANCE)
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and (checkbox["width"] < RECT_WIDTH + RECT_TOLERANCE)
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):
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xmatch = False
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ymatch = False
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if max(checkbox["x0"], cl["x0"]) <= min(checkbox["x1"], cl["x1"]):
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xmatch = True
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if max(checkbox["y0"], cl["y0"]) <= min(checkbox["y1"], cl["y1"]):
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ymatch = True
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if xmatch and ymatch:
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return True
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return False
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p0 = pdf.pages[0]
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checklines = [
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line
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for line in p0.lines
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if round(line["height"], 2) == round(line["width"], 2)
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] # These are diagonals
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rects = filter_rects(p0.objects["rect"])
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n_checked = sum([determine_if_checked(rect, checklines) for rect in rects])
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assert n_checked == 5
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pdf.close()
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def test_issue_14(self):
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pdf = pdfplumber.open(os.path.join(HERE, "pdfs/cupertino_usd_4-6-16.pdf"))
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assert len(pdf.objects)
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pdf.close()
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def test_issue_21(self):
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pdf = pdfplumber.open(os.path.join(HERE, "pdfs/150109DSP-Milw-505-90D.pdf"))
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assert len(pdf.objects)
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pdf.close()
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def test_issue_33(self):
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pdf = pdfplumber.open(os.path.join(HERE, "pdfs/issue-33-lorem-ipsum.pdf"))
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assert len(pdf.metadata.keys())
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pdf.close()
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def test_issue_53(self):
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pdf = pdfplumber.open(os.path.join(HERE, "pdfs/issue-53-example.pdf"))
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assert len(pdf.objects)
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pdf.close()
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def test_issue_67(self):
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pdf = pdfplumber.open(os.path.join(HERE, "pdfs/issue-67-example.pdf"))
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assert len(pdf.metadata.keys())
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pdf.close()
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def test_pr_88(self):
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# via https://github.com/jsvine/pdfplumber/pull/88
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path = os.path.join(HERE, "pdfs/pr-88-example.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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words = page.extract_words()
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assert len(words) == 25
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def test_issue_90(self):
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path = os.path.join(HERE, "pdfs/issue-90-example.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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page.extract_words()
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def test_pr_136(self):
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path = os.path.join(HERE, "pdfs/pr-136-example.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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page.extract_words()
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def test_pr_138(self):
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path = os.path.join(HERE, "pdfs/pr-138-example.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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assert len(page.chars) == 5140
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page.extract_tables(
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{
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"vertical_strategy": "explicit",
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"horizontal_strategy": "lines",
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"explicit_vertical_lines": page.curves + page.edges,
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}
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)
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def test_issue_140(self):
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path = os.path.join(HERE, "pdfs/issue-140-example.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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cropped_page = page.crop((0, 0, page.width, 122))
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assert len(cropped_page.extract_table()) == 5
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def test_issue_203(self):
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path = os.path.join(HERE, "pdfs/issue-203-decimalize.pdf")
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with pdfplumber.open(path) as pdf:
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assert len(pdf.objects)
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def test_issue_216(self):
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"""
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.extract_table() should return None if there's no table,
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instead of crashing
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"""
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path = os.path.join(HERE, "pdfs/issue-140-example.pdf")
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with pdfplumber.open(path) as pdf:
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cropped = pdf.pages[0].crop((0, 0, 1, 1))
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assert cropped.extract_table() is None
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def test_issue_297(self):
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"""
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Handle integer type metadata
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"""
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path = os.path.join(HERE, "pdfs/issue-297-example.pdf")
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with pdfplumber.open(path) as pdf:
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assert isinstance(pdf.metadata["Copies"], int)
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def test_issue_316(self):
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"""
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Handle invalid metadata
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"""
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path = os.path.join(HERE, "pdfs/issue-316-example.pdf")
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with pdfplumber.open(path) as pdf:
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assert (
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pdf.metadata["Changes"][0]["CreationDate"] == "D:20061207105020Z00'00'"
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)
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def test_issue_386(self):
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"""
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util.extract_text() should not raise exception if given pure iterator
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"""
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path = os.path.join(HERE, "pdfs/nics-background-checks-2015-11.pdf")
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with pdfplumber.open(path) as pdf:
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chars = (char for char in pdf.chars)
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pdfplumber.utils.extract_text(chars)
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def test_issue_461_and_842(self):
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"""
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pdfplumber should gracefully handle characters with byte-encoded
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font names.
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"""
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before = b"RGJSAP+\xcb\xce\xcc\xe5"
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after = pdfplumber.page.fix_fontname_bytes(before)
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assert after == "RGJSAP+SimSun,Regular"
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before = b"\xcb\xce\xcc\xe5"
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after = pdfplumber.page.fix_fontname_bytes(before)
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assert after == "SimSun,Regular"
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path = os.path.join(HERE, "pdfs/issue-461-example.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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assert all(isinstance(c["fontname"], str) for c in page.chars)
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page.dedupe_chars()
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path = os.path.join(HERE, "pdfs/issue-842-example.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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assert all(isinstance(c["fontname"], str) for c in page.chars)
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page.dedupe_chars()
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def test_issue_463(self):
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"""
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Extracting annotations should not raise UnicodeDecodeError on utf-16 text
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"""
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path = os.path.join(HERE, "pdfs/issue-463-example.pdf")
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with pdfplumber.open(path) as pdf:
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annots = pdf.annots
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annots[0]["contents"] == "日本語"
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def test_issue_598(self):
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"""
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Ligatures should be translated by default.
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"""
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path = os.path.join(HERE, "pdfs/issue-598-example.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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a = page.extract_text()
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assert "fiction" in a
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assert "fiction" not in a
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b = page.extract_text(expand_ligatures=False)
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assert "fiction" in b
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assert "fiction" not in b
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assert page.extract_words()[53]["text"] == "fiction"
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assert page.extract_words(expand_ligatures=False)[53]["text"] == "fiction"
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def test_issue_683(self):
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"""
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Page.search ValueError: min() arg is an empty sequence
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This ultimately stemmed from a mistaken assumption in
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LayoutEngine.calculate(...) that len(char["text"]) would always equal
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1, which is not true for ligatures. Issue 683 does not provide a PDF,
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but the test PDF triggers the same error, which should now be fixed.
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Thank you to @samkit-jain for identifying and writing this test.
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"""
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path = os.path.join(HERE, "pdfs/issue-71-duplicate-chars-2.pdf")
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with pdfplumber.open(path) as pdf:
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page = pdf.pages[0]
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page.search(r"\d+", regex=True)
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