[tests-only] test the OCIS implementation of the previews

[swoichha]

Description

Test the OCIS implementation of the WebDAV API previews test for testing the previews of different types of files like text, images, pdf, etc. with valid as well as invalid preview size.

Related Issue

• test previews via webDAV API tests #37156

Motivation and Context

• To test the OCIS implementation of the previews

How Has This Been Tested?

• locally

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:
• Changelog item, see TEMPLATE

[codecov]

Codecov Report

Merging #37260 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #37260   +/-   ##
=========================================
  Coverage     64.92%   64.92%           
  Complexity    19151    19151           
=========================================
  Files          1267     1267           
  Lines         74902    74902           
  Branches       1331     1331           
=========================================
  Hits          48633    48633           
  Misses        25877    25877           
  Partials        392      392           

Flag	Coverage Δ	Complexity Δ
#javascript	54.14% <ø> (ø)	0.00 <ø> (ø)
#phpunit	66.13% <ø> (ø)	19151.00 <ø> (ø)

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[Talank]

LGTM 👍