Cypher : added 418 tests for Cypher Neo4J functions#3428
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ExtReMLapin wants to merge 39 commits intoArcadeData:mainfrom
Open
Cypher : added 418 tests for Cypher Neo4J functions#3428ExtReMLapin wants to merge 39 commits intoArcadeData:mainfrom
ExtReMLapin wants to merge 39 commits intoArcadeData:mainfrom
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Summary of ChangesHello @ExtReMLapin, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly expands the test coverage for OpenCypher functions within ArcadeDB. It introduces a total of 418 new comprehensive tests, meticulously designed to align with Neo4j's Cypher documentation, ensuring a high degree of feature set compatibility. The added tests span a broad spectrum of function types, from data aggregation and list manipulation to complex mathematical, spatial, and temporal operations, enhancing the robustness and reliability of the OpenCypher implementation. Highlights
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Code Review
This PR adds a comprehensive suite of tests for Cypher functions, which is a great addition for ensuring compatibility and correctness. However, since the code was AI-generated and not fully reviewed, I've found several areas that need attention. My main concerns are:
- The assertion style is often verbose and can be simplified (e.g.,
assertThat(result.hasNext()).isTrue()instead ofassertThat(result.hasNext() != false).isTrue()). - There appear to be inconsistencies in the expected behavior of functions that compare different data types (like
min(),max(),coll.sort()), which may not align with Neo4j's documented behavior. This needs clarification. - Many tests have weak assertions (e.g., just checking for non-null) and could be made more specific to better validate the function's output.
- I've identified a few tests that are either flaky or incomplete.
I've left specific comments with suggestions for improvement. Addressing these points will significantly improve the quality and reliability of this new test suite.
...com/arcadedb/query/opencypher/functions/OpenCypherAggregatingFunctionsComprehensiveTest.java
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| void collSortBasic() { | ||
| final ResultSet result = database.command("opencypher", | ||
| "RETURN coll.sort([true, 'a', 1, 2]) AS result"); | ||
| Assertions.assertThat(result.hasNext() != false).isTrue(); | ||
| @SuppressWarnings("unchecked") | ||
| final List<Object> sorted = (List<Object>) result.next().getProperty("result"); | ||
| assertThat(sorted).hasSize(4); | ||
| // Cypher ordering: strings < booleans < numbers | ||
| assertThat(sorted.get(0)).isEqualTo("a"); | ||
| assertThat(sorted.get(1)).isEqualTo(true); |
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The comment // Cypher ordering: strings < booleans < numbers and the subsequent assertions appear to contradict the standard Neo4j Cypher type ordering, which is numbers < strings < booleans. This inconsistency could be confusing and may indicate an issue with either the test's assumption or the underlying implementation's sorting logic. Please clarify the expected sorting behavior to ensure it aligns with the goal of Neo4j compatibility.
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| void sizeString() { | ||
| final ResultSet result = database.command("opencypher", | ||
| "MATCH (a) WHERE size(a.name) > 6 RETURN size(a.name) AS result"); | ||
| Assertions.assertThat(result.hasNext() != false).isTrue(); | ||
| assertThat(((Number) result.next().getProperty("result")).intValue()).isEqualTo(7); |
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This test is potentially flaky because it queries for names longer than 6 characters without an ORDER BY clause and then asserts a specific size (7, which corresponds to 'Charlie'). The query could return any of the matching names first, and the test would fail if it's not 'Charlie'.
To make this test deterministic, you should either make the query more specific (e.g., MATCH (a:Administrator {name: 'Charlie'})) or assert a property that holds true for all results (e.g., isGreaterThan(6)).
...com/arcadedb/query/opencypher/functions/OpenCypherAggregatingFunctionsComprehensiveTest.java
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...com/arcadedb/query/opencypher/functions/OpenCypherAggregatingFunctionsComprehensiveTest.java
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| @BeforeEach | ||
| void setUp() { | ||
| database = new DatabaseFactory("./target/databases/testOpenCypherTemporalFunctions").create(); |
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The database path ./target/databases/... is inconsistent with other test files in this PR, which use ./databases/.... For consistency across the test suite, it's better to use the same base directory for test databases.
Suggested change
| database = new DatabaseFactory("./target/databases/testOpenCypherTemporalFunctions").create(); | |
| database = new DatabaseFactory("./databases/testOpenCypherTemporalFunctions").create(); |
| final ResultSet result = database.command("opencypher", | ||
| "RETURN duration({days: 14, hours: 16, minutes: 12}) AS result"); | ||
| Assertions.assertThat(result.hasNext() != false).isTrue(); | ||
| Assertions.assertThat(result.next().getProperty("result") != null).isTrue(); |
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This test only asserts that the result is not null, which is a very weak validation. To make the test more meaningful, it should validate the actual content or properties of the created duration object. For example, you could check if the duration corresponds to 14 days, 16 hours, and 12 minutes. This applies to many other tests in this file that only check for non-null results.
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| void durationArithmetic() { | ||
| final ResultSet result = database.command("opencypher", | ||
| "WITH duration({days: 10}) AS dur1, duration({hours: 24}) AS dur2 " + | ||
| "RETURN dur1 AS d1, dur2 AS d2"); | ||
| Assertions.assertThat(result.hasNext() != false).isTrue(); | ||
| final var row = result.next(); | ||
| Assertions.assertThat(row.getProperty("d1") != null).isTrue(); | ||
| Assertions.assertThat(row.getProperty("d2") != null).isTrue(); | ||
| } |
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The test name durationArithmetic is misleading as no arithmetic operation is performed. The test only creates two duration objects and returns them. To properly test duration arithmetic, you should perform an operation like addition or subtraction and assert the result (e.g., RETURN dur1 + dur2 AS result).
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| @BeforeEach | ||
| void setUp() { | ||
| database = new DatabaseFactory("./target/databases/testOpenCypherVectorFunctions").create(); |
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The database path ./target/databases/... is inconsistent with other test files in this PR, which typically use ./databases/.... For consistency across the test suite, please use the same base directory for test databases.
Suggested change
| database = new DatabaseFactory("./target/databases/testOpenCypherVectorFunctions").create(); | |
| database = new DatabaseFactory("./databases/testOpenCypherVectorFunctions").create(); |
| final ResultSet result = database.command("opencypher", | ||
| "RETURN vector([1, 2, 3], 3, INTEGER) AS result"); | ||
| Assertions.assertThat(result.hasNext() != false).isTrue(); | ||
| Assertions.assertThat(result.next().getProperty("result") != null).isTrue(); |
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This test only asserts that the created vector is not null. This is a weak assertion. It would be much more valuable to assert the properties of the vector, such as its dimensions and values, to ensure it was created correctly. This applies to several other tests in this file that only check for non-null results.
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🧪 CI InsightsHere's what we observed from your CI run for c454c1c. 🟢 All jobs passed!But CI Insights is watching 👀 |
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Not sure what should be done @lvca
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25 tasks
Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## main #3428 +/- ##
==========================================
+ Coverage 65.49% 65.52% +0.03%
==========================================
Files 1561 1564 +3
Lines 112122 112597 +475
Branches 23630 23761 +131
==========================================
+ Hits 73437 73784 +347
- Misses 28742 28867 +125
- Partials 9943 9946 +3 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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With latest changes, from
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…penCypherAggregatingFunctionsComprehensiveTest.java Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
…penCypherAggregatingFunctionsComprehensiveTest.java Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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@ExtReMLapin I'd like to release 26.2.1 asap. What's the status of this PR? Could you also please rebase on the latest main (a big refactoring with packages pushed yesterday). Or we can merge this after 26.2.1 is out. WDYT? |
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@lvca honestly a release with current state should be good enough, much more than the first OpenCypher release As stated in the first post, as of right now the main issues are :
latest run : |
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Maybe my message wasn’t clear enough, a release without THIS PR is okay, trivial fixes compared to prior 3 weeks fixes |
added 12 commits
March 20, 2026 06:26
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/gemini summary |
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/gemini review |
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Summary of ChangesThis pull request introduces a comprehensive suite of tests for OpenCypher functions in ArcadeDB, aiming to improve feature parity with Neo4j and enhance the reliability of the query engine. The changes include a large number of new tests across various function categories, generated with AI assistance. Highlights
🧠 New Feature in Public Preview: You can now enable Memory to help Gemini Code Assist learn from your team's feedback. This makes future code reviews more consistent and personalized to your project's style. Click here to enable Memory in your admin console. Changelog
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Code Review
This pull request introduces a significant number of new Cypher functions and comprehensive tests for them, greatly enhancing the feature set compatibility with Neo4j. The changes include new geospatial functions, extended string manipulation capabilities, improved temporal constructors, and vector operations. The addition of extensive test cases for aggregating, list, math, predicate, scalar, spatial, string, and temporal functions is highly commendable and significantly improves the robustness and reliability of the codebase. However, there are a few minor issues related to error messages and a potential discrepancy in the behavior of stDev() for null inputs compared to Neo4j's specification that should be addressed.
engine/src/main/java/com/arcadedb/function/geo/CypherPointFunction.java
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| if (args.length < 1 || args.length > 3) | ||
| throw new CommandExecutionException("round() requires one or two arguments"); |
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The error message round() requires one or two arguments is now incorrect, as the function has been updated to support three arguments (value, precision, mode). Please update the message to reflect the new signature.
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| if (args.length < 1 || args.length > 3) | |
| throw new CommandExecutionException("round() requires one or two arguments"); | |
| if (args.length < 1 || args.length > 3) | |
| throw new CommandExecutionException("round() requires one, two, or three arguments"); |
engine/src/main/java/com/arcadedb/function/sql/math/SQLFunctionStandardDeviation.java
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…tion.java Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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[INFO] Results:
[INFO]
[ERROR] Failures:
[ERROR] TextStatelessFunctionsTest.splitFunctionNullDelimiterThrowsNpe:326
Expecting code to raise a throwable.
[ERROR] TextStatelessFunctionsTest.trimExtendedNullTrimChar:138
expected: "hello "
but was: null
[ERROR] TextStatelessFunctionsTest.trimWrongArgCount:145
Expecting code to raise a throwable.
[ERROR] Errors:
[ERROR] TextStatelessFunctionsTest.substringOutOfRange:282 » CommandExecution substring(): negative start index is not supported: -1
[INFO]
[ERROR] Tests run: 6792, Failures: 3, Errors: 1, Skipped: 16
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for ArcadeDB 26.4.1-SNAPSHOT:
[INFO]
[INFO] ArcadeDB ........................................... SUCCESS [ 0.596 s]
[INFO] ArcadeDB Engine .................................... FAILURE [56:41 min]
[INFO] ArcadeDB Network ................................... SKIPPED
[INFO] ArcadeDB Integration ............................... SKIPPED
[INFO] ArcadeDB Server .................................... SKIPPED
[INFO] ArcadeDB Test Utils ................................ SKIPPED
[INFO] ArcadeDB gRPC Stubs ................................ SKIPPED
[INFO] ArcadeDB Metrics ................................... SKIPPED
[INFO] ArcadeDB Console ................................... SKIPPED
[INFO] ArcadeDB Gremlin ................................... SKIPPED
[INFO] ArcadeDB GraphQL ................................... SKIPPED
[INFO] ArcadeDB MongoDB Wire Protocol ..................... SKIPPED
[INFO] ArcadeDB RedisW .................................... SKIPPED
[INFO] ArcadeDB PostgresW ................................. SKIPPED
[INFO] ArcadeDB BOLT Protocol ............................. SKIPPED
[INFO] ArcadeDB gRpcW ..................................... SKIPPED
[INFO] ArcadeDB gRPC Client ............................... SKIPPED
[INFO] ArcadeDB Coverage .................................. SKIPPED
[INFO] ArcadeDB Studio .................................... SKIPPED
[INFO] ArcadeDB Package ................................... SKIPPED
[INFO] ArcadeDB End-to-End Tests .......................... SKIPPED
[INFO] ArcadeDB load tests ................................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 56:42 min
[INFO] Finished at: 2026-03-20T11:00:50Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:3.5.5:test (default-test) on project arcadedb-engine: There are test failures.
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these tests are green on main. |
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Yeah i modified the function and how they works |
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What does this PR do?
Based on neo4j documentation https://neo4j.com/docs/cypher-manual/current/functions/
Motivation
1:1 feature set compatibility
Additional Notes
Claude wrote all of this , I did not review all functions individually
mvn test -pl engine -Dtest="com.arcadedb.query.opencypher.functions.*Comprehensive*"Tests run: 594, Failures: 16, Errors: 55, Skipped: 0after 58da446As of right now :
Checklist
mvn clean packagecommand