Increase code coverage on dynamodb-enhanced module by andreas-grafenberger · Pull Request #6700 · aws/aws-sdk-java-v2

andreas-grafenberger · 2026-02-02T09:23:32Z

Motivation and Context

The goal of this work is to increase unit, functional, and integration code coverage for the
aws-sdk-java-v2/services-custom/dynamodb-enhanced module.

Initial coverage:

Class: 97%
Method: 85%
Line: 87%
Branch: 64%

Target coverage:

Class: ≥ 98%
Method: ≥ 92%
Line: ≥ 92%
Branch: ≥ 85%

Achieved coverage:

Class: 99%
Method: 92%
Line: 94%
Branch: 91%

These results exceed the defined targets and significantly improve confidence in the correctness and stability of the enhanced DynamoDB module.

Modifications

This pull request expands code coverage across the DynamoDB Enhanced Client by introducing new unit, functional, and integration tests targeting previously uncovered or partially covered code paths.

Testing

Existing test suites were executed without regression.
New tests were added to specifically target uncovered branches and methods.
All new and existing tests pass successfully.
Coverage was measured locally after test execution to validate improvements.

Screenshots

Initial coverage:

Achieved coverage:

Types of changes

Bug fix (non-breaking change which fixes an issue)
New feature (non-breaking change which adds functionality)

Checklist

I have read the CONTRIBUTING document
Local run of mvn install succeeds
My code follows the code style of this project
My change requires a change to the Javadoc documentation
I have updated the Javadoc documentation accordingly
I have added tests to cover my changes
All new and existing tests passed
I have added a changelog entry. Adding a new entry must be accomplished by running the scripts/new-change script and following the instructions. Commit the new file created by the script in .changes/next-release with your changes.
My change is to implement 1.11 parity feature and I have updated LaunchChangelog

License

I confirm that this pull request can be released under the Apache 2 license

...a/software/amazon/awssdk/enhanced/dynamodb/internal/operations/DeleteTableOperationTest.java

...e/amazon/awssdk/enhanced/dynamodb/functionaltests/extensions/AtomicCounterExtensionTest.java

...re/amazon/awssdk/enhanced/dynamodb/extensions/AutoGeneratedTimestampRecordExtensionTest.java

...st/java/software/amazon/awssdk/enhanced/dynamodb/DefaultMethodsUnsupportedOperationTest.java

...azon/awssdk/enhanced/dynamodb/functionaltests/extensions/AutoGeneratedUuidExtensionTest.java

.../java/software/amazon/awssdk/enhanced/dynamodb/functionaltests/models/AbstractImmutable.java

...st/java/software/amazon/awssdk/enhanced/dynamodb/functionaltests/models/SimpleImmutable.java

...src/test/java/software/amazon/awssdk/enhanced/dynamodb/internal/EnhancedClientUtilsTest.java

.../software/amazon/awssdk/enhanced/dynamodb/functionaltests/extensions/ChainExtensionTest.java

valeriodelbello-amazon · 2026-02-23T14:51:04Z

...oftware/amazon/awssdk/enhanced/dynamodb/converters/attribute/EnumAttributeConverterTest.java

        EnumAttributeConverter<Person> personConverter = EnumAttributeConverter.createWithNameAsKeys(Person.class);

-        Person john = personConverter.transformTo(AttributeValue.fromS("JOHN"));
+        personConverter.transformTo(AttributeValue.fromS("JOHN"));


I think we should also check the correct enum value is returned, something like

assertThat(personConverter.transformTo(AttributeValue.fromS("JOHN"))).isEqualTo(Person.JOHN);

Good one, thank you! The test should be fine now.

valeriodelbello-amazon · 2026-02-23T15:10:26Z

...a/software/amazon/awssdk/enhanced/dynamodb/functionaltests/AnnotatedBeanTableSchemaTest.java

+import software.amazon.awssdk.services.dynamodb.model.ReturnValue;
+import software.amazon.awssdk.services.dynamodb.model.TableDescription;
+
+public class AnnotatedBeanTableSchemaTest extends LocalDynamoDbSyncTestBase {


Can we use a parameterized test and remove the Immutable and Async variants? They are largely the same code.

We can do it for Bean and Immutable, but not for Sync and Async since there is used a different client type of DynamoDb (sync vs async and is initialized based on inherited test class):

LocalDynamoDbSyncTestBase is used to create DynamoDbClient

LocalDynamoDbAsyncTestBase is used to create DynamoDbAsyncClient

Also, there is an existing "pattern" where tests are already separated based on the used DynamoDb client type (tests for Async client usually starts with "Async*").

Update - I parameterized the mentioned tests (in terms of Bean and Immutable variants) :

AnnotatedBeanTableSchemaTest.java

AnnotatedImmutableTableSchemaTest.java

as: AnnotatedTableSchemaTest.java, and:

AsyncAnnotatedBeanTableSchemaTest.java

AsyncAnnotatedImmutableTableSchemaTest.java

as: AsyncAnnotatedTableSchemaTest.java

Looks good, thanks!

…dding assert for OptionalAttributeValueConverterTest.

…as part of PR 6373

… 437-increase_test_coverage # Conflicts: # services-custom/dynamodb-enhanced/src/test/java/software/amazon/awssdk/enhanced/dynamodb/functionaltests/extensions/AutoGeneratedUuidExtensionTest.java

andreas-grafenberger changed the title ~~437 Increase test coverage~~ Increase test coverage Feb 2, 2026

anasatirbasa force-pushed the 437-increase_test_coverage branch from a024740 to fcfbd00 Compare February 10, 2026 17:09

andreas-grafenberger changed the title ~~Increase test coverage~~ Increase code coverage Feb 10, 2026

andreas-grafenberger changed the title ~~Increase code coverage~~ Increase code coverage on dynamodb-enhanced module Feb 10, 2026

anasatirbasa force-pushed the 437-increase_test_coverage branch from 337c117 to f97adfc Compare February 11, 2026 14:26

Increase code coverage on dynamodb-enhanced module

8dd1add

andreas-grafenberger force-pushed the 437-increase_test_coverage branch from 1764264 to 8dd1add Compare February 13, 2026 12:09

andreas-grafenberger marked this pull request as ready for review February 16, 2026 15:56

andreas-grafenberger requested a review from a team as a code owner February 16, 2026 15:57

amzn-erdemkemer reviewed Feb 18, 2026

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debora-ito added the dynamodb-enhanced label Feb 18, 2026

Merge branch 'master' into 437-increase_test_coverage

b278881

valeriodelbello-amazon reviewed Feb 23, 2026

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Addressing comments (refactoring, removing duplicated tests).

e33be5f

andreas-grafenberger force-pushed the 437-increase_test_coverage branch from 5016df9 to e33be5f Compare February 25, 2026 08:36

andreas-grafenberger added 9 commits February 25, 2026 12:57

Addressing comments (adding more tests for chain extension).

1ef7ea3

Adding release change note.

523fb64

Merge branch 'master' into 437-increase_test_coverage

adadbe9

Parametrization of annotated bean and immutable table schema tests. A…

377bde1

…dding assert for OptionalAttributeValueConverterTest.

Refactoring test class: AutoGeneratedUuidExtensionTest

d0d61ed

Removing test class: AutoGeneratedUuidExtensionTest... will be added …

0d124ef

…as part of PR 6373

Merge remote-tracking branch 'origin/437-increase_test_coverage' into…

01a65e1

… 437-increase_test_coverage # Conflicts: # services-custom/dynamodb-enhanced/src/test/java/software/amazon/awssdk/enhanced/dynamodb/functionaltests/extensions/AutoGeneratedUuidExtensionTest.java

Merge branch 'master' into 437-increase_test_coverage

ef3dc6b

Removing unused utils class for tests.

11d648d

amzn-erdemkemer approved these changes Mar 31, 2026

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Increase code coverage on dynamodb-enhanced module#6700

Increase code coverage on dynamodb-enhanced module#6700
andreas-grafenberger wants to merge 12 commits intoaws:masterfrom
anasatirbasa:437-increase_test_coverage

andreas-grafenberger commented Feb 2, 2026 •

edited

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andreas-grafenberger commented Feb 2, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Motivation and Context

Initial coverage:

Target coverage:

Achieved coverage:

Modifications

Testing

Screenshots

Initial coverage:

Achieved coverage:

Types of changes

Checklist

License

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andreas-grafenberger commented Feb 2, 2026 •

edited

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