MdePkg: Add Google Mock Library for BaseMemoryLib

[SeolforHsieh]

Description

Added MockBaseMemoryLib to be used by Googletests

• Impacts functionality?
• Impacts security?
• Breaking change?
• Includes tests?
• Includes documentation?
• Backport to release branch?

How This Was Tested

Added MockBaseMemoryLib to GoogleTests and able to successfully include its functions

Integration Instructions

N/A

[SeolforHsieh]

@apop5 and @VivianNK,
please review it, thanks.

PR of edk2: tianocore/edk2#10810

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 1.42%. Comparing base (b077d2f) to head (d0ca698).

Additional details and impacted files

@@              Coverage Diff               @@
##           dev/202405    #1289      +/-   ##
==============================================
- Coverage        1.52%    1.42%   -0.11%     
==============================================
  Files            1383     1383              
  Lines          359247   359091     -156     
  Branches         5524     5524              
==============================================
- Hits             5493     5122     -371     
- Misses         353466   353498      +32     
- Partials          288      471     +183     

Flag	Coverage Δ
MdeModulePkg	0.67% <ø> (ø)
MdePkg	5.59% <ø> (ø)
NetworkPkg	0.35% <ø> (ø)
PolicyServicePkg	30.41% <ø> (+12.01%)	⬆️
UefiCpuPkg	2.83% <ø> (-1.86%)	⬇️

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[apop5]

@VivianNK

Does a MockBaseMemoryLib actually make sense?

The functions inside of base memory lib all operate on pointers that are passed into the functions. They don't independently access memory outside of what is passed in.

Given the host based unit test functions this is targeting, I don't see why the actual basememory lib instance cannot be used?

Am I missing anything?

[VivianNK]

@VivianNK

Does a MockBaseMemoryLib actually make sense?

The functions inside of base memory lib all operate on pointers that are passed into the functions. They don't independently access memory outside of what is passed in.

Given the host based unit test functions this is targeting, I don't see why the actual basememory lib instance cannot be used?

Am I missing anything?

@SeolforHsieh can you confirm that the test you are writing can use the BaseMemoryLib?

[SeolforHsieh]

@VivianNK and @apop5,

After modifying my google test to consume BaseMemoryLib (MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf), the test passed w/o errors.
I'll close this PR, thank you.