1. Replace raw `docker inspect -f xxx` with `inspectField`, to make code
cleaner and more consistent
2. assert the error in function `inspectField*` so we don't need to
assert the return value of it every time, this will make inspect easier.
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
Divide event matching into two functions, a matcher and
a processor. That way, the error handling doesn't call
the channel closing logic at all.
Signed-off-by: David Calavera <david.calavera@gmail.com>
Only two of these are not handled, the one in `TestBuildForceRm`
is intended to not be handled, while the other one in
`TestBuildResourceConstraintsAreUsed` causes problem.
In test case `TestBuildResourceConstraintsAreUsed`, somehow we
are not able to access network to get base image, but the error
message is:
```
Error: failed to inspect container : Unable to read inspect data: json: cannot unmarshal array into Go value of type types.ContainerJSON
```
Totally confusion.
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
