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Remove string checking in API error handling

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Use strongly typed errors to set HTTP status codes.
Error interfaces are defined in the api/errors package and errors
returned from controllers are checked against these interfaces.

Errors can be wraeped in a pkg/errors.Causer, as long as somewhere in the
line of causes one of the interfaces is implemented. The special error
interfaces take precedence over Causer, meaning if both Causer and one
of the new error interfaces are implemented, the Causer is not
traversed.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This commit is contained in:
Brian Goff 2017-07-19 10:20:13 -04:00
parent b6498340b2
commit ebcb7d6b40
127 changed files with 1791 additions and 885 deletions
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4
integration-cli/docker_api_resize_test.go
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@ -25,7 +25,7 @@ func (s *DockerSuite) TestResizeAPIHeightWidthNoInt(c *check.C) {
endpoint := "/containers/" + cleanedContainerID + "/resize?h=foo&w=bar"
status, _, err := request.SockRequest("POST", endpoint, nil, daemonHost())
c.Assert(status, check.Equals, http.StatusInternalServerError)
c.Assert(status, check.Equals, http.StatusBadRequest)
c.Assert(err, check.IsNil)
}
@ -38,7 +38,7 @@ func (s *DockerSuite) TestResizeAPIResponseWhenContainerNotStarted(c *check.C) {
endpoint := "/containers/" + cleanedContainerID + "/resize?h=40&w=40"
status, body, err := request.SockRequest("POST", endpoint, nil, daemonHost())
c.Assert(status, check.Equals, http.StatusInternalServerError)
c.Assert(status, check.Equals, http.StatusConflict)
c.Assert(err, check.IsNil)
c.Assert(getErrorMessage(c, body), checker.Contains, "is not running", check.Commentf("resize should fail with message 'Container is not running'"))