Fix missing sizeof in Tensor Test

[klecki]

Description

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactoring (Redesign of existing code that doesn't affect functionality)
• Other (e.g. Documentation, Tests, Configuration)

What happened in this PR

Take size of element into account when
doing copies and comparisons.

Fixes #3265

Additional information

• Affected modules and functionalities:
  Tensor Test

• Key points relevant for the review:

Checklist

Tests

• Existing tests apply
• New tests added
  • Python tests
  • GTests
  • Benchmark
  • Other
• N/A

Documentation

• Existing documentation applies
• Documentation updated
  • Docstring
  • Doxygen
  • RST
  • Jupyter
  • Other
• N/A

DALI team only

Requirements

• Implements new requirements
• Affects existing requirements
• N/A

REQ IDs: N/A

JIRA TASK: N/A

[klecki]

!build

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CI MESSAGE: [2807321]: BUILD STARTED

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CI MESSAGE: [2807321]: BUILD PASSED