[Process] Fix some unit tests that create the process object instead of delegate it to the implementation

This is the patch for version 2.4
Fixed data in pipe being truncated if not read before process termination
minor #10424 [2.4][Process] Fix some unit tests that create the process object instead of delegate it to the implementation (romainneutron)

This PR was merged into the 2.4 branch.

Discussion
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[2.4][Process] Fix some unit tests that create the process object instead of delegate it to the implementation

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT

This follows #10421 in branch 2.4

Commits
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741a8c1 [Process] Fix some unit tests that create the process object instead of delegate it to the implementation
bug #10153 [Process] Fixed data in pipe being truncated if not read before process termination (astephens25)

This PR was merged into the 2.3 branch.

Discussion
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[Process] Fixed data in pipe being truncated if not read before process termination

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9409
| License       | MIT
| Doc PR        | N/A

This is a repeat of the botched pull request #9630.

Commits
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7e51913 Fixed data in pipe being truncated if not read before process termination
Merge branch '2.3' into 2.4

* 2.3:
  [Config] made a condition more explicit
  convertDomElementToArray should handle zero values
  prefixed http:// to url output on server:run command in order to make it clickable
  Fixed data in pipe being truncated if not read before process termination