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conan-1.6-utilities/tests/test_conandeps.py
Ole-Morten Duesund baba4e0205 tests: pin override and MISSING tag colours in the text tree 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EYNdaGDrpaqDyT8QtrTQbM
2026-08-25 16:06:54 +02:00

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"""Integration test for conandeps against a throw-away local conan_server.
The fixture builds this graph (all recipes are "fake" C++ packages: they have
the usual settings but their build() does nothing, so no compiler is needed):
consumer (conanfile.py)
|-- libfoo/1.0 binaries: Release, Debug, RelWithDebInfo
| `-- libbar/1.0 binaries: Release only <- MISSING Debug/RWDI
| `-- libdeep/1.0 binaries: all three <- depth 3
|-- libbar/1.1 (override=True) <- explicit override
|-- libbaz/2.0 binaries: all three
| `-- libqux/1.0 binaries: all three
`-- libqux/1.1 binaries: all three <- implicit override
`-- hdr/1.0 header-only (no settings), binary always exists
Everything runs in an isolated CONAN_USER_HOME so the developer's cache and
remotes are never touched.
"""
import os
import re
import shutil
import socket
import subprocess
import sys
import textwrap
import time
from pathlib import Path
import pytest
ROOT = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(ROOT))
import conandeps # noqa: E402
RECIPE = textwrap.dedent("""\
from conans import ConanFile
class Pkg(ConanFile):
name = "{name}"
version = "{version}"
settings = "os", "compiler", "build_type", "arch"
{requires}
def package(self):
open("marker.txt", "w").write("x")
self.copy("marker.txt")
""")
HEADER_ONLY = textwrap.dedent("""\
from conans import ConanFile
class Pkg(ConanFile):
name = "hdr"
version = "1.0"
def package(self):
open("marker.txt", "w").write("x")
self.copy("marker.txt")
""")
CONSUMER = textwrap.dedent("""\
from conans import ConanFile
class Consumer(ConanFile):
settings = "os", "compiler", "build_type", "arch"
requires = ("libfoo/1.0", "libbaz/2.0", "libqux/1.1", "hdr/1.0")
def requirements(self):
self.requires("libbar/1.1", override=True)
""")
PROFILE = textwrap.dedent("""\
[settings]
os=Linux
arch=x86_64
compiler=gcc
compiler.version=12
compiler.libcxx=libstdc++11
build_type=Release
""")
SERVER_CONF = textwrap.dedent("""\
[server]
jwt_secret: testsecrettestsecret
jwt_expire_minutes: 120
ssl_enabled: False
port: {port}
public_port:
host_name: 127.0.0.1
authorize_timeout: 1800
disk_storage_path: ./data
disk_authorize_timeout: 1800
updown_secret: testsecrettestsecret
[write_permissions]
*/*@*/*: demo
[read_permissions]
*/*@*/*: *
[users]
demo: demo
""")
BUILD_TYPES = ("Release", "Debug", "RelWithDebInfo")
def _free_port() -> int:
with socket.socket() as s:
s.bind(("127.0.0.1", 0))
return s.getsockname()[1]
def _conan(env, *args):
res = subprocess.run(
["conan", *args], env=env, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True
)
if res.returncode:
raise RuntimeError("conan %s failed:\n%s" % (" ".join(args), res.stdout))
@pytest.fixture(scope="session")
def conan_env(tmp_path_factory):
home = tmp_path_factory.mktemp("conan_home")
server_home = tmp_path_factory.mktemp("server_home")
port = _free_port()
# --- conan_server (ships with conan 1.x) -----------------------------
# The port can only be set through server.conf, so write a minimal one
# before the first start. Reads are public, writes need demo/demo.
(server_home / "server.conf").write_text(SERVER_CONF.format(port=port))
server = subprocess.Popen(
["conan_server", "-d", str(server_home)],
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
)
for _ in range(100):
try:
socket.create_connection(("127.0.0.1", port), timeout=0.2).close()
break
except OSError:
time.sleep(0.1)
else:
server.kill()
raise RuntimeError("conan_server did not start")
env = dict(
os.environ,
CONAN_USER_HOME=str(home),
CONAN_REVISIONS_ENABLED="0",
CONAN_LOGIN_USERNAME="demo",
CONAN_PASSWORD="demo",
)
profile_dir = home / ".conan" / "profiles"
profile_dir.mkdir(parents=True)
(profile_dir / "default").write_text(PROFILE)
_conan(env, "remote", "clean")
_conan(env, "remote", "add", "test", "http://127.0.0.1:%d" % port)
# --- create + upload packages ----------------------------------------
work = tmp_path_factory.mktemp("recipes")
def create(name, version, requires=(), build_types=BUILD_TYPES, header_only=False):
d = work / ("%s-%s" % (name, version))
d.mkdir()
if header_only:
(d / "conanfile.py").write_text(HEADER_ONLY)
_conan(env, "create", str(d))
else:
req = "requires = (%s)" % "".join('"%s", ' % r for r in requires)
(d / "conanfile.py").write_text(RECIPE.format(name=name, version=version, requires=req))
for bt in build_types:
# --build=missing lets dependencies whose binaries we deliberately
# did not create (libbar Debug) be built locally; those local
# binaries are never uploaded because each reference is
# uploaded right after its own create, and the cache is wiped
# at the end.
_conan(env, "create", str(d), "-s", "build_type=%s" % bt, "--build=missing")
_conan(env, "upload", "%s/%s" % (name, version), "-r", "test", "--all", "-c")
create("libdeep", "1.0")
create("libbar", "1.0", requires=("libdeep/1.0",), build_types=("Release",))
create("libbar", "1.1", requires=("libdeep/1.0",), build_types=("Release",))
create("libfoo", "1.0", requires=("libbar/1.0",))
create("libqux", "1.0")
create("libqux", "1.1")
create("libbaz", "2.0", requires=("libqux/1.0",))
create("hdr", "1.0", header_only=True)
# Wipe the local cache so binaries can only come from the remote.
_conan(env, "remove", "*", "-f")
consumer = work / "consumer"
consumer.mkdir()
(consumer / "conanfile.py").write_text(CONSUMER)
old_environ = dict(os.environ)
os.environ.update(env)
try:
yield {"conanfile": str(consumer / "conanfile.py"), "home": home}
finally:
os.environ.clear()
os.environ.update(old_environ)
server.terminate()
server.wait(timeout=10)
shutil.rmtree(work, ignore_errors=True)
@pytest.fixture(scope="session")
def report(conan_env):
return conandeps.build_report(
conan_env["conanfile"], "test", [], [], [], list(BUILD_TYPES), update=False
)
def test_dependencies_listed(report):
refs = {d.ref for d in report.deps.values()}
assert refs == {
"libfoo/1.0",
"libbar/1.1",
"libbaz/2.0",
"libqux/1.1",
"hdr/1.0",
"libdeep/1.0",
}
direct = {d.ref for d in report.deps.values() if d.direct}
assert direct == {"libfoo/1.0", "libbaz/2.0", "libqux/1.1", "hdr/1.0"}
# libbar is only reachable through libfoo -> indirect, even though the
# consumer mentions it with override=True.
assert not report.deps["libbar#host"].direct
def test_sorted_by_path(report):
order = [(d.ref, d.path) for d in report.deps.values()]
# Direct deps first (alphabetical), then by shortest path.
assert order == [
("hdr/1.0", []),
("libbaz/2.0", []),
("libfoo/1.0", []),
("libqux/1.1", []), # required directly, even though libbaz also pulls it in
("libbar/1.1", ["libfoo"]),
("libdeep/1.0", ["libfoo", "libbar"]),
]
# libqux is required by both the consumer and libbaz -> two parents, but
# it is direct, so the via column just says "-".
assert sorted(report.deps["libqux#host"].parents) == ["libbaz", "your conanfile"]
assert conandeps._via(report.deps["libqux#host"]) == "-"
text = conandeps.render_text(report)
assert re.search(r"hdr/1\.0\s+-\s+host", text)
assert re.search(r"libbar/1\.1\s+libfoo\s+host", text)
assert re.search(r"libdeep/1\.0\s+libfoo -> libbar\s+host", text)
page = conandeps.render_html(report)
assert "<th>via</th>" in page
assert "<td>libdeep/1.0</td><td>libfoo \u2192 libbar</td><td>host</td>" in page
def test_via_lists_every_parent_path():
boost = conandeps.Dep(ref="boost/1.8", context="host", depth=2, path=["MyDepA"])
boost.parents = ["MyDepA", "Zigma"]
boost.paths = [["MyDepA"], ["MyDepB", "Zigma"]]
assert conandeps._via(boost) == "MyDepA\nMyDepB -> Zigma"
assert conandeps._via(boost, " > ", "; ") == "MyDepA; MyDepB > Zigma"
# Multi-line cells spread the row; other columns stay aligned and blank.
lines = conandeps._table(
["package", "via", "ctx"],
[["boost/1.8", conandeps._via(boost), "host"]],
conandeps._Palette(False),
)
assert lines[2:] == [
"boost/1.8 MyDepA host",
" MyDepB -> Zigma",
]
def test_missing_binaries(report):
missing = {d.ref: d.missing() for d in report.deps.values() if d.missing()}
assert missing == {"libbar/1.1": ["Debug", "RelWithDebInfo"]}
# The others must be found on the remote (not in cache, we wiped it).
for dep in report.deps.values():
for bt, (status, pid, remote) in dep.binaries.items():
if dep.ref != "libbar/1.1":
assert status == "Remote", (dep.ref, bt, status)
assert remote == "test"
assert pid
def test_cache_only_is_not_available(conan_env):
"""A binary that exists only in the local cache must not count as available.
Build libbar/1.1 Debug locally without uploading it, and install the
Release one so it is cached too. Release must still be attributed to the
remote; Debug must be reported as cache-only (a problem).
"""
env = dict(os.environ)
d = Path(conan_env["home"]) / "libbar-local"
d.mkdir()
(d / "conanfile.py").write_text(
RECIPE.format(name="libbar", version="1.1", requires='requires = ("libdeep/1.0",)')
)
_conan(env, "create", str(d), "-s", "build_type=Debug")
_conan(env, "install", "libbar/1.1@", "-s", "build_type=Release", "-r", "test")
report = conandeps.build_report(
conan_env["conanfile"], "test", [], [], [], list(BUILD_TYPES), update=False, quiet=True
)
libbar = report.deps["libbar#host"]
assert libbar.binaries["Release"][0] == "Remote"
assert libbar.binaries["Release"][2] == "test"
assert libbar.binaries["Debug"][0] == "CacheOnly"
assert libbar.binaries["RelWithDebInfo"][0] == "Missing"
assert libbar.missing() == ["Debug", "RelWithDebInfo"]
text = conandeps.render_text(report)
assert "not available" in text and "in local cache only" in text
assert 'class="cacheonly"' in conandeps.render_html(report)
_conan(env, "remove", "libbar/1.1@", "-f") # leave the cache as other tests expect
def test_overrides(report):
ov = {(o.package, o.old, o.new, o.by, o.explicit) for o in report.overrides}
assert ov == {
("libfoo/1.0", "libbar/1.0", "libbar/1.1", "your conanfile", True),
("libbaz/2.0", "libqux/1.0", "libqux/1.1", "your conanfile", False),
}
def test_text_and_html_render(report, tmp_path):
text = conandeps.render_text(report)
assert "libbar/1.1" in text and "MISSING" in text
table = text.split("Missing binaries")[0]
assert table.count("test") >= 5 * 3 - 2 # every available cell names the remote
assert "\033[" not in text # no ANSI codes unless asked for
# Missing binaries and overrides are tables with a header row.
assert "package build type package_id" in text
assert re.search(r"libbar/1\.1\s+Debug\s+[0-9a-f]{40}\s+no binary anywhere", text)
assert "package wanted forced to by kind" in text
assert "libfoo/1.0 libbar/1.0 libbar/1.1 your conanfile explicit (override=True)" in text
assert "overrides libbar/1.0 (explicit" in text # tree edge annotation
# Tree lines carry the full path of their branch; direct nodes do not.
tree = text.split("Dependency hierarchy")[1]
assert re.search(r"`-- libdeep/1\.0 \[libfoo -> libbar -> libdeep\]", tree)
assert re.search(r"\|-- libfoo/1\.0\n", tree)
coloured = conandeps.render_text(report, color=True)
assert "\033[1;31mMISSING\033[0m" in coloured and "\033[32mtest\033[0m" in coloured
# Tree tags: path dim, override yellow, MISSING bold red.
assert "\033[2mlibfoo -> libbar -> libdeep\033[0m" in coloured
assert "\033[33moverrides libbar/1.0 (explicit by your conanfile)\033[0m" in coloured
assert "\033[1;31mMISSING: Debug,RelWithDebInfo\033[0m" in coloured
# Colour codes must not break column alignment: same visible layout.
strip = conandeps._ANSI_RE.sub
assert strip("", coloured) == text
assert "`-- " in text or "|-- " in text # tree drawn
page = conandeps.render_html(report)
assert page.startswith("<!DOCTYPE html>") and 'class="missing"' in page
assert page.count("<table>") == 3 # dependencies, missing binaries, overrides
# The HTML tree carries the same tags as the text tree, coloured by kind.
assert '[<span class="path">libfoo -&gt; libbar -&gt; libdeep</span>]' in page
assert '<span class="new">overrides libbar/1.0 (explicit by your conanfile)</span>' in page
assert '<span class="missing">MISSING: Debug,RelWithDebInfo</span>' in page
assert 'class="explicit"' in page and 'class="implicit"' in page
assert "<script" not in page # self-contained, static
def test_cli_exit_code(conan_env, tmp_path, capsys):
out = tmp_path / "r.html"
rc = conandeps.main([conan_env["conanfile"], "-r", "test", "--html", str(out)])
assert rc == 1 # missing binaries -> non-zero so CI can fail on it
assert out.exists()
captured = capsys.readouterr()
assert "conandeps report" in captured.out
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