Copilot commented on code in PR #12278: URL: https://github.com/apache/gluten/pull/12278#discussion_r3408798594
########## .github/workflows/util/delta-spark-ut/compare-test-results.py: ########## @@ -0,0 +1,467 @@ +#!/usr/bin/env python3 +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. +# The ASF licenses this file to You under the Apache License, Version 2.0 +# (the "License"); you may not use this file except in compliance with +# the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Gate / seed / aggregate the Delta-on-Gluten unit test results. + +Running delta-io/delta's ScalaTest suite against the Gluten Velox bundle +produces many *expected* failures (Gluten does not yet support every Delta +code path). To keep the red/green signal meaningful while we fix those +failures incrementally, we maintain a committed baseline of known failing +tests (``known-failures.txt``) and compare each CI run against it. + +This script has three modes: + +``enforce`` (default, per shard) + Parse the JUnit XML produced by ``sbt spark/test`` (ScalaTest ``-u`` + reporter) and compare against the baseline: + + * regression -- a test that FAILED but is NOT in the baseline. These + fail the build: a previously-passing test just started failing. + * expected -- a test that failed and IS in the baseline. Ignored. + * fixed -- a baseline test that now PASSES. By default these also + fail the build (``--fail-on-fixed true``) so the baseline stays honest + and contributors remove entries as they fix them. + + If the baseline is empty (not yet bootstrapped) the mode automatically + degrades to ``seed`` so the first run is never spuriously red. + +``seed`` (bootstrap / ``update_baseline``) + Never fails. Just writes the current shard's failing tests so the baseline + can be (re)generated from a real run. + +``aggregate`` (final job) + Merge every shard's ``--failures-out`` / ``--ran-out`` file into a single, + sorted, ready-to-commit ``known-failures.txt`` and report stale baseline + entries (tests no longer present in any shard). + +Baseline file format (``known-failures.txt``):: + + # comment lines start with '#' + <fully.qualified.SuiteName>#<test display name> + +The suite is always a JVM class name (dot-separated, never starts with '#'), +so a line whose first non-space character is '#' is unambiguously a comment, +and the FIRST '#' after the suite separates suite from the (possibly +'#'-containing) test name. + +Only the Python standard library is used so the script runs in the bare +centos image used by the Delta UT pipeline with no ``pip install``. +""" + +import argparse +import glob +import os +import sys +import xml.etree.ElementTree as ET + +# Synthetic "test name" recorded when a whole suite aborts (e.g. beforeAll +# throws) so that the JUnit XML reports a suite-level error with no per-test +# <testcase>. Without this, a suite that used to pass but now aborts entirely +# would record zero failing testcases and the regression would be missed. +SUITE_ABORTED = "<suite aborted>" + +SEP = "#" + + +def eprint(*args, **kwargs): + print(*args, file=sys.stderr, **kwargs) + + +# --------------------------------------------------------------------------- # +# Baseline (known-failures.txt) parsing / formatting +# --------------------------------------------------------------------------- # +def format_entry(suite, test): + return "{}{}{}".format(suite, SEP, test) + + +def parse_entry(line): + """Parse a 'suite#test' line into (suite, test) or return None for blanks/comments.""" + stripped = line.strip() + if not stripped or stripped.startswith("#"): + return None + idx = stripped.find(SEP) + if idx < 0: + # No separator: treat the whole line as a suite-level entry. + return (stripped, SUITE_ABORTED) + return (stripped[:idx], stripped[idx + len(SEP) :]) + + +def load_entries(path): + """Load a set of (suite, test) tuples from a baseline/shard-list file.""" + entries = set() + if not path or not os.path.exists(path): + return entries + with open(path, "r", encoding="utf-8") as fh: + for line in fh: + parsed = parse_entry(line) + if parsed is not None: + entries.add(parsed) + return entries + + +def write_entries(path, entries, header=None): + """Write a sorted set of (suite, test) tuples to a file.""" + os.makedirs(os.path.dirname(os.path.abspath(path)) or ".", exist_ok=True) + with open(path, "w", encoding="utf-8") as fh: + if header: + for hl in header.splitlines(): + fh.write(hl.rstrip() + "\n") + for suite, test in sorted(entries): + # Defensive: collapse any stray newlines so each entry stays on one line. + safe_test = test.replace("\r", " ").replace("\n", " ") + fh.write(format_entry(suite, safe_test) + "\n") + + +# --------------------------------------------------------------------------- # +# JUnit XML parsing +# --------------------------------------------------------------------------- # +def _iter_testsuites(root): + """Yield every <testsuite> element regardless of whether the file root is + <testsuites> (wrapper) or a single <testsuite>.""" + tag = root.tag.split("}")[-1] # strip any namespace + if tag == "testsuites": + for child in root: + if child.tag.split("}")[-1] == "testsuite": + yield child + elif tag == "testsuite": + yield root + + +def _child_local_tags(elem): + return {c.tag.split("}")[-1] for c in elem} + + +def parse_reports(reports_dir): + """Walk reports_dir for JUnit XML and classify every test. + + Returns (passed, failed, skipped) sets of (suite, test) tuples. A test is + 'failed' if its <testcase> has a <failure> or <error> child, 'skipped' if + it has a <skipped> child, otherwise 'passed'. Suite-level aborts (a + <testsuite> reporting errors/failures with no failing <testcase>) are + recorded as a synthetic (suite, SUITE_ABORTED) failure. + """ + passed, failed, skipped = set(), set(), set() + + xml_files = [] + # ScalaTest's -u reporter and Maven surefire both write `TEST-<suite>.xml` + # under a `target/.../*-reports/` dir. Restrict the secondary glob to + # `target/` so we never parse Delta's own XML *test resources* (which live + # under src/test/resources and are not reports). The <testsuite>-root guard + # below is a final safety net. + for pattern in ("**/TEST-*.xml", "**/target/**/*.xml"): + xml_files.extend(glob.glob(os.path.join(reports_dir, pattern), recursive=True)) + xml_files = sorted(set(xml_files)) Review Comment: The `**/target/**/*.xml` glob can match (and then fully XML-parse) a large number of non-report XML files under `target/`, which can significantly slow the gate on big builds. Consider narrowing this to known report locations (e.g., `**/target/test-reports/TEST-*.xml`, `**/target/surefire-reports/TEST-*.xml`, and/or `**/*-reports/TEST-*.xml`) so the script avoids parsing unrelated XML files. ########## .github/workflows/util/delta-spark-ut/compare-test-results.py: ########## @@ -0,0 +1,467 @@ +#!/usr/bin/env python3 +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. +# The ASF licenses this file to You under the Apache License, Version 2.0 +# (the "License"); you may not use this file except in compliance with +# the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Gate / seed / aggregate the Delta-on-Gluten unit test results. + +Running delta-io/delta's ScalaTest suite against the Gluten Velox bundle +produces many *expected* failures (Gluten does not yet support every Delta +code path). To keep the red/green signal meaningful while we fix those +failures incrementally, we maintain a committed baseline of known failing +tests (``known-failures.txt``) and compare each CI run against it. + +This script has three modes: + +``enforce`` (default, per shard) + Parse the JUnit XML produced by ``sbt spark/test`` (ScalaTest ``-u`` + reporter) and compare against the baseline: + + * regression -- a test that FAILED but is NOT in the baseline. These + fail the build: a previously-passing test just started failing. + * expected -- a test that failed and IS in the baseline. Ignored. + * fixed -- a baseline test that now PASSES. By default these also + fail the build (``--fail-on-fixed true``) so the baseline stays honest + and contributors remove entries as they fix them. + + If the baseline is empty (not yet bootstrapped) the mode automatically + degrades to ``seed`` so the first run is never spuriously red. + +``seed`` (bootstrap / ``update_baseline``) + Never fails. Just writes the current shard's failing tests so the baseline + can be (re)generated from a real run. + +``aggregate`` (final job) + Merge every shard's ``--failures-out`` / ``--ran-out`` file into a single, + sorted, ready-to-commit ``known-failures.txt`` and report stale baseline + entries (tests no longer present in any shard). + +Baseline file format (``known-failures.txt``):: + + # comment lines start with '#' + <fully.qualified.SuiteName>#<test display name> + +The suite is always a JVM class name (dot-separated, never starts with '#'), +so a line whose first non-space character is '#' is unambiguously a comment, +and the FIRST '#' after the suite separates suite from the (possibly +'#'-containing) test name. + +Only the Python standard library is used so the script runs in the bare +centos image used by the Delta UT pipeline with no ``pip install``. +""" + +import argparse +import glob +import os +import sys +import xml.etree.ElementTree as ET + +# Synthetic "test name" recorded when a whole suite aborts (e.g. beforeAll +# throws) so that the JUnit XML reports a suite-level error with no per-test +# <testcase>. Without this, a suite that used to pass but now aborts entirely +# would record zero failing testcases and the regression would be missed. +SUITE_ABORTED = "<suite aborted>" + +SEP = "#" + + +def eprint(*args, **kwargs): + print(*args, file=sys.stderr, **kwargs) + + +# --------------------------------------------------------------------------- # +# Baseline (known-failures.txt) parsing / formatting +# --------------------------------------------------------------------------- # +def format_entry(suite, test): + return "{}{}{}".format(suite, SEP, test) + + +def parse_entry(line): + """Parse a 'suite#test' line into (suite, test) or return None for blanks/comments.""" + stripped = line.strip() + if not stripped or stripped.startswith("#"): + return None + idx = stripped.find(SEP) + if idx < 0: + # No separator: treat the whole line as a suite-level entry. + return (stripped, SUITE_ABORTED) + return (stripped[:idx], stripped[idx + len(SEP) :]) + + +def load_entries(path): + """Load a set of (suite, test) tuples from a baseline/shard-list file.""" + entries = set() + if not path or not os.path.exists(path): + return entries + with open(path, "r", encoding="utf-8") as fh: + for line in fh: + parsed = parse_entry(line) + if parsed is not None: + entries.add(parsed) + return entries + + +def write_entries(path, entries, header=None): + """Write a sorted set of (suite, test) tuples to a file.""" + os.makedirs(os.path.dirname(os.path.abspath(path)) or ".", exist_ok=True) + with open(path, "w", encoding="utf-8") as fh: + if header: + for hl in header.splitlines(): + fh.write(hl.rstrip() + "\n") + for suite, test in sorted(entries): + # Defensive: collapse any stray newlines so each entry stays on one line. + safe_test = test.replace("\r", " ").replace("\n", " ") + fh.write(format_entry(suite, safe_test) + "\n") + + +# --------------------------------------------------------------------------- # +# JUnit XML parsing +# --------------------------------------------------------------------------- # +def _iter_testsuites(root): + """Yield every <testsuite> element regardless of whether the file root is + <testsuites> (wrapper) or a single <testsuite>.""" + tag = root.tag.split("}")[-1] # strip any namespace + if tag == "testsuites": + for child in root: + if child.tag.split("}")[-1] == "testsuite": + yield child + elif tag == "testsuite": + yield root + + +def _child_local_tags(elem): + return {c.tag.split("}")[-1] for c in elem} + + +def parse_reports(reports_dir): + """Walk reports_dir for JUnit XML and classify every test. + + Returns (passed, failed, skipped) sets of (suite, test) tuples. A test is + 'failed' if its <testcase> has a <failure> or <error> child, 'skipped' if + it has a <skipped> child, otherwise 'passed'. Suite-level aborts (a + <testsuite> reporting errors/failures with no failing <testcase>) are + recorded as a synthetic (suite, SUITE_ABORTED) failure. + """ + passed, failed, skipped = set(), set(), set() + + xml_files = [] + # ScalaTest's -u reporter and Maven surefire both write `TEST-<suite>.xml` + # under a `target/.../*-reports/` dir. Restrict the secondary glob to + # `target/` so we never parse Delta's own XML *test resources* (which live + # under src/test/resources and are not reports). The <testsuite>-root guard + # below is a final safety net. + for pattern in ("**/TEST-*.xml", "**/target/**/*.xml"): + xml_files.extend(glob.glob(os.path.join(reports_dir, pattern), recursive=True)) + xml_files = sorted(set(xml_files)) + + parsed_any = False + for xml_file in xml_files: + try: + tree = ET.parse(xml_file) + except ET.ParseError as exc: + eprint("WARNING: could not parse {}: {}".format(xml_file, exc)) + continue + root = tree.getroot() + root_tag = root.tag.split("}")[-1] + if root_tag not in ("testsuites", "testsuite"): + continue # not a JUnit report + + for ts in _iter_testsuites(root): + parsed_any = True + suite_name = ts.get("name") or "" + suite_has_failing_tc = False + for tc in ts: + if tc.tag.split("}")[-1] != "testcase": + continue + suite = tc.get("classname") or suite_name + name = tc.get("name") or "" + key = (suite, name) + tags = _child_local_tags(tc) + if "failure" in tags or "error" in tags: + failed.add(key) + suite_has_failing_tc = True + elif "skipped" in tags: + skipped.add(key) + else: + passed.add(key) + + # Suite-level abort: counters say something failed but no testcase + # carried the failure (the suite blew up in beforeAll/constructor). + # Record a + # synthetic entry so the regression is visible. + try: + errors = int(ts.get("errors", "0") or "0") + failures = int(ts.get("failures", "0") or "0") + except ValueError: + errors = failures = 0 + if (errors + failures) > 0 and not suite_has_failing_tc: + failed.add((suite_name, SUITE_ABORTED)) + + if not parsed_any: + eprint( + "WARNING: no JUnit <testsuite> elements found under {}".format(reports_dir) + ) + + # A test can't be both passed and failed; failure wins. Skipped only counts + # if the test was not otherwise seen (e.g. retried). + passed -= failed + skipped -= failed + skipped -= passed + return passed, failed, skipped + + +# --------------------------------------------------------------------------- # +# Reporting helpers +# --------------------------------------------------------------------------- # +def _summary_sink(): + """Return a writer that mirrors to GITHUB_STEP_SUMMARY when available.""" + path = os.environ.get("GITHUB_STEP_SUMMARY") + handle = open(path, "a", encoding="utf-8") if path else None + + def write(line=""): + print(line) + if handle: + handle.write(line + "\n") + + return write, handle + + +def _print_block(write, title, entries, limit=50): + write("") + write("### {} ({})".format(title, len(entries))) + if not entries: + return + write("") + write("```") + for i, (suite, test) in enumerate(sorted(entries)): + if i >= limit: + write("... and {} more".format(len(entries) - limit)) + break + write(format_entry(suite, test)) + write("```") + + +# --------------------------------------------------------------------------- # +# Modes +# --------------------------------------------------------------------------- # +def run_enforce(args): + baseline = load_entries(args.known_failures) + passed, failed, skipped = parse_reports(args.reports_dir) + + # Always emit this shard's artifacts for the aggregation job. + if args.failures_out: + write_entries(args.failures_out, failed) + if args.ran_out: + write_entries(args.ran_out, passed | failed) Review Comment: `--ran-out` currently excludes `skipped` tests. This makes the aggregate job’s `stale = baseline - union_ran` computation incorrectly mark skipped tests as “not seen this run”, and can mislead baseline maintenance (especially after version bumps or conditional skips). Include `skipped` in `ran_out` (and therefore union_ran) so “seen” means pass/fail/skip. ########## .github/workflows/util/delta-spark-ut/setup-delta.sh: ########## @@ -0,0 +1,141 @@ +#!/usr/bin/env bash + +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. +# The ASF licenses this file to You under the Apache License, Version 2.0 +# (the "License"); you may not use this file except in compliance with +# the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# +# Prepares a delta-io/delta clone for running its `spark` module tests with the +# Gluten (Velox) bundle jar on the classpath. +# +# Usage: +# setup-delta.sh <delta_ref> <delta_dir> <gluten_bundle_jar> <gluten_repo_root> +# +# Arguments: +# delta_ref - git ref (tag/branch/sha) to check out (e.g. v4.2.0) +# delta_dir - destination directory for the Delta clone +# gluten_bundle_jar - path to the gluten-velox-bundle fat jar +# gluten_repo_root - path to the Gluten repository root (used to locate +# backends-velox/src-delta40/.../DeltaSQLCommandTest.scala) +# + +set -euo pipefail + +if [ "$#" -ne 4 ]; then + echo "Usage: $0 <delta_ref> <delta_dir> <gluten_bundle_jar> <gluten_repo_root>" >&2 + exit 1 +fi + +DELTA_REF="$1" +DELTA_DIR="$2" +GLUTEN_BUNDLE_JAR="$3" +GLUTEN_ROOT="$4" + +if [ ! -f "$GLUTEN_BUNDLE_JAR" ]; then + echo "Gluten bundle jar not found: $GLUTEN_BUNDLE_JAR" >&2 + exit 1 +fi + +# Reuse the existing DeltaSQLCommandTest from Gluten's backends-velox module +# rather than maintaining a separate copy. This file is compiled as part of the +# unified `spark` project's Test scope, which has the Gluten bundle on its +# classpath (via spark-unified/lib/), so the typed GlutenConfig / VeloxDeltaConfig +# imports resolve correctly. +PATCH_SOURCE="$GLUTEN_ROOT/backends-velox/src-delta40/test/scala/org/apache/spark/sql/delta/test/DeltaSQLCommandTest.scala" +if [ ! -f "$PATCH_SOURCE" ]; then + echo "Gluten DeltaSQLCommandTest not found: $PATCH_SOURCE" >&2 + exit 1 +fi + +echo "::group::Cloning delta-io/delta @ ${DELTA_REF}" +# Shallow clone the requested tag/branch. Fall back to full clone when the ref is a SHA. +if ! git clone --depth 1 --branch "$DELTA_REF" https://github.com/delta-io/delta.git "$DELTA_DIR"; then + echo "Shallow clone of ref '${DELTA_REF}' failed, falling back to full clone." + rm -rf "$DELTA_DIR" + git clone https://github.com/delta-io/delta.git "$DELTA_DIR" + git -C "$DELTA_DIR" checkout "$DELTA_REF" +fi +git -C "$DELTA_DIR" --no-pager log -1 --oneline +echo "::endgroup::" + +echo "::group::Injecting Gluten bundle jar onto the spark project's TEST classpath" +# The Gluten bundle jar must be on the spark project's TEST runtime classpath +# (so DeltaSQLCommandTest can load org.apache.gluten.GlutenPlugin by name) but +# NOT on the COMPILE classpath of `sparkV1`, which is the project that holds +# Delta's main sources. The bundle's transitive contents include extra symbols +# under `org.apache.spark.sql` that collide with Delta's main sources -- e.g. +# MergeOutputGeneration.scala imports both `org.apache.spark.sql._` and +# `org.apache.spark.sql.delta.ClassicColumnConversions._`, and would then fail +# with `reference to expression is ambiguous`. +# +# sbt auto-scans `<baseDirectory>/lib` via `unmanagedBase`. Two relevant +# projects in Delta v4.2.0 have a `lib/` baseDirectory: +# - sparkV1: `project in file("spark")` -> spark/lib +# - spark : `project in file("spark-unified")` -> spark-unified/lib +# unmanagedJars are project-scoped (NOT inherited by dependents), so dropping +# the bundle into spark-unified/lib/ adds it to the unified `spark` project's +# Compile *and* Test classpaths -- but NOT to sparkV1's. That's exactly what +# we want: +# * sparkV1/Compile sees ONLY Delta's regular deps -> Delta main compiles. +# * spark/Test/fullClasspath sees the bundle -> tests load GlutenPlugin. +# (Verified empirically: with bundle only in spark-unified/lib/, sbt's +# `show sparkV1/Compile/dependencyClasspath` excludes the bundle and +# `show spark/Test/fullClasspath` includes it.) +# +# We deliberately do NOT also drop the bundle into spark/lib/, which is what +# caused the previous compile failure: spark/lib/ is sparkV1's unmanagedBase, +# and putting the bundle there would re-introduce the ambiguity errors. +SPARK_UNIFIED_LIB="$DELTA_DIR/spark-unified/lib" +mkdir -p "$SPARK_UNIFIED_LIB" +cp "$GLUTEN_BUNDLE_JAR" "$SPARK_UNIFIED_LIB/gluten-velox-bundle.jar" +ls -lh "$SPARK_UNIFIED_LIB" +echo "::endgroup::" + +echo "::group::Patching DeltaSQLCommandTest to enable Gluten plugin" +TARGET="$DELTA_DIR/spark/src/test/scala/org/apache/spark/sql/delta/test/DeltaSQLCommandTest.scala" +if [ ! -f "$TARGET" ]; then + echo "Expected file not found in Delta clone: $TARGET" >&2 + echo "The Delta directory layout for ref '${DELTA_REF}' may have changed." + exit 1 +fi +cp "$PATCH_SOURCE" "$TARGET" +echo "Patched $TARGET" +echo "--- diff vs. upstream ---" +git -C "$DELTA_DIR" --no-pager diff -- "spark/src/test/scala/org/apache/spark/sql/delta/test/DeltaSQLCommandTest.scala" || true +echo "::endgroup::" + +echo "::group::Disabling Delta scalastyle HeaderMatchesChecker" +# Our reused DeltaSQLCommandTest carries Gluten's ASF-only license header, which +# does not match Delta's HeaderMatchesChecker regex (the regex expects either a +# Delta copyright block, or the ASF header followed by a Spark-modifications +# block and the Delta copyright block). HeaderMatchesChecker is a file-level +# checker that does NOT honor `// scalastyle:off` directives, so we instead +# disable it globally in Delta's shared scalastyle-config.xml. The config is +# applied via `ThisBuild / scalastyleConfig` in project/Checkstyle.scala, so a +# single edit covers every sbt sub-project. +SCALASTYLE_CONFIG="$DELTA_DIR/scalastyle-config.xml" +if [ ! -f "$SCALASTYLE_CONFIG" ]; then + echo "Expected scalastyle config not found: $SCALASTYLE_CONFIG" >&2 + exit 1 +fi +sed -i \ + 's|<check level="error" class="org.scalastyle.file.HeaderMatchesChecker" enabled="true">|<check level="error" class="org.scalastyle.file.HeaderMatchesChecker" enabled="false">|' \ + "$SCALASTYLE_CONFIG" Review Comment: This `sed` replacement is very exact-match sensitive (attribute order/whitespace changes in Delta’s `scalastyle-config.xml` will cause it to no-op and hard-fail later). To make the patch more robust across Delta refs, consider using a pattern that tolerates whitespace/attribute reordering (or using a small XML-aware edit) while still verifying the checker was disabled. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
