CODEWITHSUNDEEP
google-app-enginego
Shouichi
Shouichi

Reputation: 1150

Good way to use and test local packages in Google App Engine apps written in golang?

I have a problem of testing my GAE golang app uses local packages. The probject looks something like this.

.
├── app.yaml
├── main.go
└── handler
    └── handler.go

handler package is imported in main.go.

package main

import "handler"

Everything (e.g., goapp serve) works fine until I started writing tests. goapp test complains that handler package is not found. Seems like GOPATH of goapp serve and goapp test are different. One solution I found is to put handler package outside of the project path and import it with fully qualified name (e.g., github.com/.../handler) but it doesn't make sense to me to split the project in to separate places where they're tightly coupled. Are there any good way to use and test local packages?

Following resources are found on this topic.

Upvotes: 2

Views: 668

Answers (2)

Suau
Suau

Reputation: 4738

This comes late, but if anyone runs into the same issue, here is how to deal with it:

  1. Organize your code this way

    /whereever
└── /myproject
    └──/src
       ├── app.yaml
       ├── main.go
       └── /handler
           └── handler.go

  2. Use unqualified imports for your project code e.g.

    import handler

  3. Run goapp serve and goapp deploy from inside the src folder. serve/deploy work relative to the app.yaml

    cd /whereever/myproject/src
goapp serve

  4. Set GOPATH for goapp test , it work based on GOPATH

    cd /whereever/myproject    #GOPATH expects a subfolder called src
GOPATH=$GOPATH:`pwd`       #add the current folder to the GOPATH
goapp test ./...           #run all tests in any subfolders

  5. Reset your GOPATH if necessary

    source ~/.profile #this assumes ~/.profile is where you have permanently set your GOPATH

All in all, "working as intended", but still a pain.

Upvotes: 2

Zikes
Zikes

Reputation: 5886

You need to import handler with a fully qualified name, however you don't need to move it out of the project to do so. If your project folder looks like this:

/go
└── /myproject
    ├── app.yaml
    ├── main.go
    └── /handler
        └── handler.go

Then your handler import should look like this:

import "myproject/handler"

Upvotes: 1

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