52 lines
2.4 KiB
Python
52 lines
2.4 KiB
Python
"""Integration checks against an isolated checkout; run python3 tooling/format/test.py."""
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from pathlib import Path
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import shutil
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import subprocess
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import tempfile
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root = Path(__file__).resolve().parents[1]
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with tempfile.TemporaryDirectory(prefix="palantir-test-") as temporary:
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fixture = Path(temporary)
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pom = (root / "templates/common/pom.xml").read_text().replace("@PROJECT@", "format-fixture").replace("@MODULES@", "")
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(fixture / "pom.xml").write_text(pom)
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(fixture / "generated/tooling").mkdir(parents=True)
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shutil.copytree(root / "resources/tooling/format", fixture / "generated/tooling/format")
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(fixture / "engineering.properties").write_text("FORMAT_DIRECTORIES=backend/src,ci\n")
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for name in ("backend/src/main/java", "backend/src/test/java", "ci/runner"):
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(fixture / name).mkdir(parents=True)
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source = fixture / "ci/runner/Example.java"
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original = "import java.util.List;\nclass Example{String text=\"héllo\";int value(){return 1;}}\n"
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source.write_text(original)
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def run(mode, success=True):
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result = subprocess.run(
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["mvn", "-N", "-B", "-ntp", "exec:exec@format", "-Dformat.mode=" + mode],
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cwd=fixture, text=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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assert (result.returncode == 0) == success, result.stdout
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return result.stdout
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output = run("check", False)
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assert "ci/runner/Example.java" in output and "mvn -N exec:exec@format" in output
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assert source.read_text() == original
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run("apply")
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formatted = source.read_text()
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assert "import java.util.List" not in formatted and "héllo" in formatted
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run("check")
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run("apply")
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assert source.read_text() == formatted
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# Force a full (uncached) second pass to prove engine idempotence.
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(fixture / "target/palantir-cache.properties").unlink()
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run("check")
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source.write_text(formatted + "class Broken { ??? }\n")
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invalid = source.read_bytes()
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output = run("apply", False)
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assert "ci/runner/Example.java" in output
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assert source.read_bytes() == invalid
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# A new file is discovered even after a successful cached check.
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source.write_text(formatted)
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extra = fixture / "ci/New.java"
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extra.write_text("class New{}")
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run("check", False)
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assert extra.read_text() == "class New{}"
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print("PASS: check is read-only, apply/check agree, imports, UTF-8, idempotence, parser errors, new files")
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