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#!/usr/bin/env python3
"""
Older Graphviz regression test suite that has been encapsulated
TODO:
Report differences with shared version and with new output.
"""
import io
import os
import platform
import re
import sys
import warnings
from dataclasses import dataclass
from pathlib import Path
import pytest
sys.path.append(os.path.dirname(__file__))
from gvtest import ( # pylint: disable=wrong-import-position
is_ubuntu_2404,
is_ubuntu_2504,
run,
)
# Test specifications
GRAPHDIR = Path(__file__).parent / "graphs"
# Directory of input graphs and data
OUTHTML = Path("nhtml") # Directory for html test report
@dataclass
class Case:
"""test case struct"""
name: str
input: Path
algorithm: str
format: str
flags: list[str]
index: int = 0
xfail: bool = True # is this test case expected to fail?
TESTS: list[Case] = [
Case("trivial", Path("trivial.gv"), "dot", "gv", [], xfail=False),
Case(
"shapes",
Path("shapes.gv"),
"dot",
"gv",
[],
xfail=not (is_ubuntu_2404() or is_ubuntu_2504()),
),
Case("shapes", Path("shapes.gv"), "dot", "ps", []),
Case("crazy", Path("crazy.gv"), "dot", "png", []),
Case("crazy", Path("crazy.gv"), "dot", "ps", []),
Case("arrows", Path("arrows.gv"), "dot", "gv", []),
Case("arrows", Path("arrows.gv"), "dot", "ps", []),
Case("arrowsize", Path("arrowsize.gv"), "dot", "png", []),
Case("center", Path("center.gv"), "dot", "ps", []),
Case("center", Path("center.gv"), "dot", "png", ["-Gmargin=1"]),
# color encodings
# multiple edge colors
Case("color", Path("color.gv"), "dot", "png", []),
Case("color", Path("color.gv"), "dot", "png", ["-Gbgcolor=lightblue"]),
Case("decorate", Path("decorate.gv"), "dot", "png", []),
Case("record", Path("record.gv"), "dot", "gv", []),
Case("record", Path("record.gv"), "dot", "ps", []),
Case("html", Path("html.gv"), "dot", "gv", []),
Case("html", Path("html.gv"), "dot", "ps", []),
Case("html2", Path("html2.gv"), "dot", "gv", []),
Case("html2", Path("html2.gv"), "dot", "ps", []),
Case("html2", Path("html2.gv"), "dot", "svg", []),
Case("pslib", Path("pslib.gv"), "dot", "ps", ["-lgraphs/sdl.ps"]),
Case("user_shapes", Path("user_shapes.gv"), "dot", "ps", []),
# dot png - doesn't work: Warning: No loadimage plugin for "gif:cairo"
Case("user_shapes", Path("user_shapes.gv"), "dot", "png:gd", []),
# bug - the epsf version has problems
Case(
"ps_user_shapes",
Path("ps_user_shapes.gv"),
"dot",
"ps",
["-Nshapefile=graphs/dice.ps"],
),
Case("colorscheme", Path("colorscheme.gv"), "dot", "ps", []),
Case("colorscheme", Path("colorscheme.gv"), "dot", "png", []),
Case("compound", Path("compound.gv"), "dot", "gv", []),
Case("dir", Path("dir.gv"), "dot", "ps", []),
Case("clusters", Path("clusters.gv"), "dot", "ps", []),
Case("clusters", Path("clusters.gv"), "dot", "png", []),
Case(
"clustlabel",
Path("clustlabel.gv"),
"dot",
"ps",
["-Glabelloc=t", "-Glabeljust=r"],
),
Case(
"clustlabel",
Path("clustlabel.gv"),
"dot",
"ps",
["-Glabelloc=b", "-Glabeljust=r"],
1,
),
Case(
"clustlabel",
Path("clustlabel.gv"),
"dot",
"ps",
["-Glabelloc=t", "-Glabeljust=l"],
2,
),
Case(
"clustlabel",
Path("clustlabel.gv"),
"dot",
"ps",
["-Glabelloc=b", "-Glabeljust=l"],
3,
),
Case(
"clustlabel",
Path("clustlabel.gv"),
"dot",
"ps",
["-Glabelloc=t", "-Glabeljust=c"],
4,
),
Case(
"clustlabel",
Path("clustlabel.gv"),
"dot",
"ps",
["-Glabelloc=b", "-Glabeljust=c"],
5,
),
Case("clustlabel", Path("clustlabel.gv"), "dot", "ps", ["-Glabelloc=t"], 6),
Case("clustlabel", Path("clustlabel.gv"), "dot", "ps", ["-Glabelloc=b"], 7),
Case(
"rootlabel",
Path("rootlabel.gv"),
"dot",
"ps",
["-Glabelloc=t", "-Glabeljust=r"],
),
Case(
"rootlabel",
Path("rootlabel.gv"),
"dot",
"ps",
["-Glabelloc=b", "-Glabeljust=r"],
1,
),
Case(
"rootlabel",
Path("rootlabel.gv"),
"dot",
"ps",
["-Glabelloc=t", "-Glabeljust=l"],
2,
),
Case(
"rootlabel",
Path("rootlabel.gv"),
"dot",
"ps",
["-Glabelloc=b", "-Glabeljust=l"],
3,
),
Case(
"rootlabel",
Path("rootlabel.gv"),
"dot",
"ps",
["-Glabelloc=t", "-Glabeljust=c"],
4,
),
Case(
"rootlabel",
Path("rootlabel.gv"),
"dot",
"ps",
["-Glabelloc=b", "-Glabeljust=c"],
5,
),
Case("rootlabel", Path("rootlabel.gv"), "dot", "ps", ["-Glabelloc=t"], 6),
Case("rootlabel", Path("rootlabel.gv"), "dot", "ps", ["-Glabelloc=b"], 7),
Case("layers", Path("layers.gv"), "dot", "ps", []),
# check mode=hier
Case("mode", Path("mode.gv"), "neato", "ps", ["-Gmode=KK"]),
Case("mode", Path("mode.gv"), "neato", "ps", ["-Gmode=hier"], 1),
Case("mode", Path("mode.gv"), "neato", "ps", ["-Gmode=hier", "-Glevelsgap=1"], 2),
Case("model", Path("mode.gv"), "neato", "ps", ["-Gmodel=circuit"]),
Case(
"model",
Path("mode.gv"),
"neato",
"ps",
["-Goverlap=false", "-Gmodel=subset"],
1,
),
# cairo versions have problems
Case("nojustify", Path("nojustify.gv"), "dot", "png", []),
Case("nojustify", Path("nojustify.gv"), "dot", "png:gd", []),
Case("nojustify", Path("nojustify.gv"), "dot", "ps", []),
Case("nojustify", Path("nojustify.gv"), "dot", "ps:cairo", []),
# bug
Case("ordering", Path("ordering.gv"), "dot", "gv", ["-Gordering=in"]),
Case("ordering", Path("ordering.gv"), "dot", "gv", ["-Gordering=out"], 1),
Case("overlap", Path("overlap.gv"), "neato", "gv", ["-Goverlap=false"]),
Case("overlap", Path("overlap.gv"), "neato", "gv", ["-Goverlap=scale"], 1),
Case("pack", Path("pack.gv"), "neato", "gv", []),
Case("pack", Path("pack.gv"), "neato", "gv", ["-Gpack=20"], 1),
Case("pack", Path("pack.gv"), "neato", "gv", ["-Gpackmode=graph"], 2),
Case("page", Path("mode.gv"), "neato", "ps", ["-Gpage=8.5,11"]),
Case("page", Path("mode.gv"), "neato", "ps", ["-Gpage=8.5,11", "-Gpagedir=TL"], 1),
Case("page", Path("mode.gv"), "neato", "ps", ["-Gpage=8.5,11", "-Gpagedir=TR"], 2),
# pencolor, fontcolor, fillcolor
Case("colors", Path("colors.gv"), "dot", "ps", []),
Case("polypoly", Path("polypoly.gv"), "dot", "ps", []),
Case("polypoly", Path("polypoly.gv"), "dot", "png", []),
Case("ports", Path("ports.gv"), "dot", "gv", []),
Case("rotate", Path("crazy.gv"), "dot", "png", ["-Glandscape"]),
Case("rotate", Path("crazy.gv"), "dot", "ps", ["-Glandscape"]),
Case("rotate", Path("crazy.gv"), "dot", "png", ["-Grotate=90"], 1),
Case("rotate", Path("crazy.gv"), "dot", "ps", ["-Grotate=90"], 1),
Case("rankdir", Path("crazy.gv"), "dot", "gv", ["-Grankdir=LR"]),
Case("rankdir", Path("crazy.gv"), "dot", "gv", ["-Grankdir=BT"], 1),
Case("rankdir", Path("crazy.gv"), "dot", "gv", ["-Grankdir=RL"], 2),
Case("url", Path("url.gv"), "dot", "ps2", []),
Case("url", Path("url.gv"), "dot", "svg", ["-Gstylesheet=stylesheet"]),
Case("url", Path("url.gv"), "dot", "imap", []),
Case("url", Path("url.gv"), "dot", "cmapx", []),
Case("url", Path("url.gv"), "dot", "imap_np", []),
Case("url", Path("url.gv"), "dot", "cmapx_np", []),
Case(
"viewport", Path("viewport.gv"), "neato", "png", ["-Gviewport=300,300", "-n2"]
),
Case("viewport", Path("viewport.gv"), "neato", "ps", ["-Gviewport=300,300", "-n2"]),
Case(
"viewport",
Path("viewport.gv"),
"neato",
"png",
["-Gviewport=300,300,1,200,620", "-n2"],
1,
),
Case(
"viewport",
Path("viewport.gv"),
"neato",
"ps",
["-Gviewport=300,300,1,200,620", "-n2"],
1,
),
Case(
"viewport",
Path("viewport.gv"),
"neato",
"png",
["-Gviewport=300,300,2,200,620", "-n2"],
2,
),
Case(
"viewport",
Path("viewport.gv"),
"neato",
"ps",
["-Gviewport=300,300,2,200,620", "-n2"],
2,
),
Case("rowcolsep", Path("rowcolsep.gv"), "dot", "gv", ["-Gnodesep=0.5"]),
Case("rowcolsep", Path("rowcolsep.gv"), "dot", "gv", ["-Granksep=1.5"], 1),
Case("size", Path("mode.gv"), "neato", "ps", ["-Gsize=5,5"]),
Case("size", Path("mode.gv"), "neato", "png", ["-Gsize=5,5"]),
# size with !
Case("size_ex", Path("root.gv"), "dot", "ps", ["-Gsize=6,6!"]),
Case("size_ex", Path("root.gv"), "dot", "png", ["-Gsize=6,6!"]),
Case("dotsplines", Path("size.gv"), "dot", "gv", ["-Gsplines=line"]),
Case("dotsplines", Path("size.gv"), "dot", "gv", ["-Gsplines=polyline"], 1),
Case(
"neatosplines",
Path("overlap.gv"),
"neato",
"gv",
["-Goverlap=false", "-Gsplines"],
),
Case(
"neatosplines",
Path("overlap.gv"),
"neato",
"gv",
["-Goverlap=false", "-Gsplines=polyline"],
1,
),
Case("style", Path("style.gv"), "dot", "ps", []),
Case("style", Path("style.gv"), "dot", "png", []),
# edge clipping
Case("edgeclip", Path("edgeclip.gv"), "dot", "gv", []),
# edge weight
Case("weight", Path("weight.gv"), "dot", "gv", []),
Case("root", Path("root.gv"), "twopi", "gv", []),
Case("cairo", Path("cairo.gv"), "dot", "ps:cairo", []),
Case("cairo", Path("cairo.gv"), "dot", "png:cairo", []),
Case("cairo", Path("cairo.gv"), "dot", "svg:cairo", []),
Case("flatedge", Path("flatedge.gv"), "dot", "gv", []),
Case("nestedclust", Path("nestedclust.gv"), "dot", "gv", []),
Case("rd_rules", Path("rd_rules.gv"), "dot", "png", []),
Case("sq_rules", Path("sq_rules.gv"), "dot", "png", []),
Case("fdp_clus", Path("fdp.gv"), "fdp", "png", []),
Case("japanese", Path("japanese.gv"), "dot", "png", []),
Case("russian", Path("russian.gv"), "dot", "png", []),
Case("AvantGarde", Path("AvantGarde.gv"), "dot", "png", []),
Case("AvantGarde", Path("AvantGarde.gv"), "dot", "ps", []),
Case("Bookman", Path("Bookman.gv"), "dot", "png", []),
Case("Bookman", Path("Bookman.gv"), "dot", "ps", []),
Case("Helvetica", Path("Helvetica.gv"), "dot", "png", []),
Case("Helvetica", Path("Helvetica.gv"), "dot", "ps", []),
Case("NewCenturySchlbk", Path("NewCenturySchlbk.gv"), "dot", "png", []),
Case("NewCenturySchlbk", Path("NewCenturySchlbk.gv"), "dot", "ps", []),
Case("Palatino", Path("Palatino.gv"), "dot", "png", []),
Case("Palatino", Path("Palatino.gv"), "dot", "ps", []),
Case("Times", Path("Times.gv"), "dot", "png", []),
Case("Times", Path("Times.gv"), "dot", "ps", []),
Case("ZapfChancery", Path("ZapfChancery.gv"), "dot", "png", []),
Case("ZapfChancery", Path("ZapfChancery.gv"), "dot", "ps", []),
Case("ZapfDingbats", Path("ZapfDingbats.gv"), "dot", "png", []),
Case("ZapfDingbats", Path("ZapfDingbats.gv"), "dot", "ps", []),
Case("xlabels", Path("xlabels.gv"), "dot", "png", []),
Case("xlabels", Path("xlabels.gv"), "neato", "png", []),
Case("sides", Path("sides.gv"), "dot", "ps", []),
]
def doDiff(output: Path, reference: Path, fmt):
"""
Compare old and new output and report if different.
Args:
output: File generated during this test run
reference: Golden copy to compare against
"""
F = fmt.split(":")[0]
if F in ["ps", "ps2"]:
with open(output, "rt", encoding="latin-1") as src:
dst1 = io.StringIO()
done_setup = False
for line in src:
if done_setup:
dst1.write(line)
else:
done_setup = re.match(r"%%End.*Setup", line) is not None
with open(reference, "rt", encoding="latin-1") as src:
dst2 = io.StringIO()
done_setup = False
for line in src:
if done_setup:
dst2.write(line)
else:
done_setup = re.match(r"%%End.*Setup", line) is not None
assert dst1.getvalue() == dst2.getvalue()
elif F == "svg":
with open(output, "rt", encoding="utf-8") as f:
a = re.sub(r"^<!--.*-->$", "", f.read(), flags=re.MULTILINE)
with open(reference, "rt", encoding="utf-8") as f:
b = re.sub(r"^<!--.*-->$", "", f.read(), flags=re.MULTILINE)
assert a.strip() == b.strip()
elif F == "png":
OUTHTML.mkdir(exist_ok=True)
run(["diffimg", output, reference, OUTHTML / f"dif_{reference.name}"])
else:
with open(reference, "rt", encoding="utf-8") as a:
with open(output, "rt", encoding="utf-8") as b:
assert a.read().strip() == b.read().strip()
def genOutname(name, alg, fmt, index: int):
"""
Generate output file name
Args:
name: Name of the current test case.
alg: Algorithm (-K).
fmt: Format (-T). If format ends in :*, remove this, change the colons to
underscores, and append to basename.
index: A number to discriminate test cases that are otherwise indistinguishable.
"""
fmt_split = fmt.split(":")
if len(fmt_split) >= 2:
F = fmt_split[0]
XFMT = f'_{"_".join(fmt_split[1:])}'
else:
F = fmt
XFMT = ""
suffix = "" if index == 0 else str(index)
OUTFILE = f"{name}_{alg}{XFMT}{suffix}.{F}"
return OUTFILE
@pytest.mark.parametrize(
"name,input,algorithm,format,flags,index",
(
pytest.param(
c.name,
c.input,
c.algorithm,
c.format,
c.flags,
c.index,
marks=pytest.mark.xfail(strict=True) if c.xfail else (),
)
for c in TESTS
),
)
def test_graph(
name: str,
input: Path,
algorithm: str,
format: str,
flags: list[str],
index: int,
tmp_path: Path,
): # pylint: disable=too-many-arguments,too-many-positional-arguments
"""
Run a single test.
Args:
tmp_path: Transient working directory, created by Pytest
"""
MY_DIR = Path(__file__).resolve().parent
if platform.system() == "Linux":
REFDIR = MY_DIR / "linux.x86"
elif platform.system() == "Darwin":
REFDIR = MY_DIR / "macosx"
elif platform.system() == "Windows":
REFDIR = MY_DIR / "nshare"
else:
warnings.warn(f'Unrecognized system "{platform.system()}"')
REFDIR = MY_DIR / "nshare"
if input.suffix != ".gv":
pytest.skip(f"Unknown graph spec, test {name} - ignoring")
INFILE = GRAPHDIR / input
OUTFILE = genOutname(name, algorithm, format, index)
OUTPATH = tmp_path / OUTFILE
testcmd = ["dot", f"-K{algorithm}", f"-T{format}"] + flags + ["-o", OUTPATH, INFILE]
# FIXME: Remove when https://gitlab.com/graphviz/graphviz/-/issues/1790 is
# fixed
if platform.system() == "Windows" and name == "ps_user_shapes":
pytest.skip(
f"Skipping test {name}: using PostScript shapefile "
"because it fails with Windows builds (#1790)"
)
run(testcmd)
doDiff(OUTPATH, REFDIR / OUTFILE, format)
|
