[ARROW-6930] [Java] Create utility class for populating vector values used for test purpose only

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.16.0
• Component/s: Java
• Labels: pull-request-available
• Assignee: Ji Liu
• Reporter: Micah Kornfield
• Created: 18/Oct/19 04:21
• Updated: 15/Nov/19 05:39
• Resolved: 15/Nov/19 05:38

Description

There is a lot of verbosity in the construction of Arrays for testing purposes (multiple lines of setSafe(...) or set(...).
We should start adding a utility class to make test setup clearer and more concise, note this class should be located in arrow-vector test package and could be used in other module’s testing by adding dependency:

<dependency>
<groupId>org.apache.arrow</groupId>
<artifactId>arrow-vector</artifactId>
<version>${project.version}</version>
<classifier>tests</classifier>
<type>test-jar</type>
<scope>test</scope>
</dependency>

Usage would be something like:

try (IntVector vector = new IntVector(“vector”, allocator))

Unknown macro: { ValueVectorPopulator.setVector(vector, 1, 2, null, 4, 5); output = doSomethingWith(input); assertThat(output).isEqualTo(expected); }

Issue Links

• links to: GitHub Pull Request #5693