Support Jest's --watchAll

[mikew]

Jest, at least the version that react-scripts depends on, does not work with both the --watch and --watchAll flags.

Since react-scripts is automatically adding the --watch flag, that means no user would ever be able to do --watchAll.

Either upgrading Jest or fixing this logic would solve the issue.

[GAumala]

Yes, but in watch mode, after the initial run you can press 'a' to trigger a "watchAll" run.

[gaearon]

Yes, but in watch mode, after the initial run you can press 'a' to trigger a "watchAll" run.

Yea, IMO this is enough.

[mikew]

IMO it's not, but whatever I guess?

[mikew]

Yes, but in watch mode, after the initial run you can press 'a' to trigger a "watchAll" run.

Yes, but what if you don't want to have to wait for Jest to start up and press a key to run all tests?

[gaearon]

Merged a fix in #3804. Will be out in 2.x beta.