Add JdbcSnowflakeClientTest using mocks #2
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…bcSnowflakeClient and entities' ResultSetHandler logic.
sfc-gh-mparmar
approved these changes
Dec 14, 2022
sfc-gh-ppaulus
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Dec 14, 2022
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Can you add method headers to each test to describe what it's testing?
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…flake-managed Iceberg tables (apache#6428) * Initial read-only Snowflake Catalog implementation by @sfc-gh-mparmar (#1) Initial read-only Snowflake Catalog implementation built on top of the Snowflake JDBC driver, providing support for basic listing of namespaces, listing of tables, and loading/reads of tables. Auth options are passthrough to the JDBC driver. Co-authored-by: Maninder Parmar <[email protected]> Co-authored-by: Maninder Parmar <[email protected]> Co-authored-by: Dennis Huo <[email protected]> * Add JdbcSnowflakeClientTest using mocks (#2) Add JdbcSnowflakeClientTest using mocks; provides full coverage of JdbcSnowflakeClient and entities' ResultSetHandler logic. Also update target Spark runtime versions to be included. * Add test { useJUnitPlatform() } tuple to iceberg-snowflake for consistency and future interoperability with inheriting from abstact unittest base classes. * Extract versions into versions.props per PR review * Misc test-related refactors per review suggestions -Convert unittests to all use assertj/Assertions for "fluent assertions" -Refactor test injection into overloaded initialize() method -Add test cases for close() propagation -Use CloseableGroup. * Fix unsupported behaviors of loadNamedpaceMetadata and defaultWarehouseLocation * Move TableIdentifier checks out of newTableOps into the SnowflakTableOperations class itself, add test case. * Refactor out any Namespace-related business logic from the lower SnowflakeClient/JdbcSnowflakeClient layers and merge SnowflakeTable and SnowflakeSchema into a single SnowflakeIdentifier that also encompasses ROOT and DATABASE level identifiers. A SnowflakeIdentifier thus functions like a type-checked/constrained Iceberg TableIdentifier, and eliminates any tight coupling between a SnowflakeClient and Catalog business logic. Parsing of Namespace numerical levels into a SnowflakeIdentifier is now fully encapsulated in NamespaceHelpers so that callsites don't duplicate namespace-handling/validation logic. * Finish migrating JdbcSnowflakeClientTest off any usage of org.junit.Assert in favor of assertj's Assertions. * Style refactorings from review comments, expanded and moved InMemoryFileIO into core with its own unittest. * Fix behavior of getNamespaceMetadata to throw when the namespace doesn't exist. Refactor for naming conventions and consolidating identifier handling into NamespaceHandlers. Make FileIO instantiated fresh for each newTableOps call. * Move private constructor to top, add assertion to test case. * Define minimal ResultSetParser/QueryHarness classes to fully replace any use of commons-dbutils; refactor ResultSet handling fully into JdbcSnowflakeClient.java. * Update snowflake/src/main/java/org/apache/iceberg/snowflake/SnowflakeTableOperations.java Co-authored-by: Eduard Tudenhöfner <[email protected]> * Refactor style suggestions; remove debug-level logging, arguments in exceptions, private members if not accessed outside, move precondition checks, add test for NamespaceHelpers. * Fix precondition messages, remove getConf() * Clean up varargs. * Make data members final, include rawJsonVal in toString for debuggability. * Combine some small test cases into roundtrip test cases, misc cleanup * Add comment for why a factory class is exposed for testing purposes. Co-authored-by: Dennis Huo <[email protected]> Co-authored-by: Maninder Parmar <[email protected]> Co-authored-by: Maninder Parmar <[email protected]> Co-authored-by: Eduard Tudenhöfner <[email protected]>
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Provides full coverage of JdbcSnowflakeClient and entities' ResultSetHandler logic.