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test: add hijackStdout and hijackStderr #13439

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test: add hijackStdout and hijackStderr #13439

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82dd2c2
test: add hijackStdout and hijackStderr
XadillaX Jun 3, 2017
d261893
update after reviewing
XadillaX Jun 4, 2017
bda1fd1
expand contraction
XadillaX Jun 4, 2017
5a3a666
update after @thefourtheye's reviewing
XadillaX Jun 4, 2017
ab93f52
update after @refack's reviewing
XadillaX Jun 5, 2017
2a42456
update afeter @jasnell's reviewing
XadillaX Jun 6, 2017
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update afeter @jasnell's reviewing
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@XadillaX
XadillaX committed Jun 6, 2017
commit 2a42456773eccf376f0f932ebf14bab6711facb0
22 changes: 15 additions & 7 deletions test/common/README.md
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Expand Up @@ -116,13 +116,21 @@ Checks whether `IPv6` is supported on this platform.

Checks if there are multiple localhosts available.

### hijackStderr/Stdout(listener)
### hijackStderr(listener)
* `listener` [<Function>][MDN-Function]: a listener with a single parameter called `data`.

Eavesdrop to `process.stderr.write` or `process.stdout.write` calls. Once
`process.std*.write` is called, `listener` will also be called and the `data` of
`write` function will be passed to `listener`. What's more,
`process.std*.writeTimes` is a count of the number of calls.
Eavesdrop to `process.stderr.write` calls. Once `process.stderr.write` is
called, `listener` will also be called and the `data` of `write` function will
be passed to `listener`. What's more, `process.stderr.writeTimes` is a count of
the number of calls.

### hijackStdout(listener)
* `listener` [<Function>][MDN-Function]: a listener with a single parameter called `data`.

Eavesdrop to `process.stdout.write` calls. Once `process.stdout.write` is
called, `listener` will also be called and the `data` of `write` function will
be passed to `listener`. What's more, `process.stdout.writeTimes` is a count of
the number of calls.

### inFreeBSDJail
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Expand Down Expand Up @@ -258,11 +266,11 @@ Port tests are running on.

Deletes the 'tmp' dir and recreates it

### restoreStderr
### restoreStderr()

Restore the original `process.stderr.write`.

### restoreStdout
### restoreStdout()

Restore the original `process.stdout.write`.

Expand Down