testing procedure cleanup and docs (bold-commerce#98)

.travis.yml

@@ -9,8 +9,9 @@ go:
   - "1.12"
   - "1.13"
   - "1.14"
+install:
+  - make travis
 script:
   - go test -coverprofile=coverage.txt
 after_success:
   - bash <(curl -s https://codecov.io/bash)
-

Dockerfile

@@ -1,9 +1,5 @@
-FROM golang:1.9
+FROM golang:1.14-alpine
 
-# This is similar to the golang-onbuild image but with different paths and
-# test-dependencies loaded as well.
+ENV CGO_ENABLED=0
 RUN mkdir -p /go/src/github.com/bold-commerce/go-shopify
 WORKDIR /go/src/github.com/bold-commerce/go-shopify
-
-COPY . /go/src/github.com/bold-commerce/go-shopify
-RUN go get -v -d -t

Makefile

@@ -0,0 +1,14 @@
+container:
+	@docker-compose build test
+travis:
+	@go get -v -d -t
+test:
+	@docker-compose run --rm test
+coverage:
+	@docker-compose run --rm test sh -c 'go test -coverprofile=coverage.out ./... && go tool cover -html coverage.out -o coverage.html'
+	@open coverage.html
+clean:
+	@docker image rm go-shopify
+	@rm -f coverage.html coverage.out
+
+.DEFAULT_GOAL := container

README.md

@@ -97,6 +97,29 @@ client := goshopify.NewClient(app, "shopname", "")
 // Fetch the number of products.
 numProducts, err := client.Product.Count(nil)
 ```
+### Client Options
+When creating a client there are configuration options you can pass to NewClient. Simply use the last variadic param and 
+pass in the built in options or create your own and manipulate the client. See [options.go](https://github.com/bold-commerce/go-shopify/blob/master/options.go)
+for more details.
+
+#### WithVersion
+Read more details on the [Shopify API Versioning](https://shopify.dev/concepts/about-apis/versioning)
+to understand the format and release schedules. You can use `WithVersion` to specify a specific version 
+of the API. If you do not use this option you will be defaulted to the oldest stable API.
+
+```go
+client := goshopify.NewClient(app, "shopname", "", goshopify.WithVersion("2019-04"))
+```
+
+#### WithRetry
+Shopify [Rate Limits](https://shopify.dev/concepts/about-apis/rate-limits) their API and if this happens to you they 
+will send a back off (usually 2s) to tell you to retry your request. To support this functionality seamlessly within 
+the client a `WithRetry` option exists where you can pass an `int` of how many times you wish to retry per-request 
+before returning an error. `WithRetry` additionally supports retrying HTTP503 errors.
+
+```go
+client := goshopify.NewClient(app, "shopname", "", goshopify.WithRetry(3))
+```
 
 #### Query options
 
@@ -176,14 +199,40 @@ func ValidateWebhook(httpRequest *http.Request) (bool) {
 ```
 
 ## Develop and test
+`docker` and `docker-compose` must be installed
+
+### Mac/Linux/Windows with make
+Using the make file is the easiest way to get started with the tests and wraps the manual steps below with easy to use
+make commands.
 
-There's nothing special to note about the tests except that if you have Docker
-and Compose installed, you can test like this:
+```shell
+make && make test
+```
+#### Makefile goals
+* `make` or `make container`: default goal is to make the `go-shopify:latest` build container
+* `make test`: run go test in the container
+* `make clean`: deletes the `go-shopify:latest` image and coverage output
+* `make coverage`: generates the coverage.html and opens it
+
+### Manually
+To run the tests you will need the `go-shopify:latest` image built to run your tests, to do this run
+```
+docker-compose build test
+```
 
-    $ docker-compose build dev
-    $ docker-compose run --rm dev
+To run tests you can use run
+```shell
+docker-compose run --rm tests
+```
 
-Testing the package is the default command for the dev container. To create a
-coverage profile:
+To create a coverage profile run the following to generate a coverage.html
+```
+docker-compose run --rm dev sh -c 'go test -coverprofile=coverage.out ./... && go tool cover -html coverage.out -o coverage.html'
+```
+
+When done testing and you want to cleanup simply run
+```
+docker image rm go-shopify:latest
+```
 
-    $ docker-compose run --rm dev bash -c 'go test -coverprofile=coverage.out ./... && go tool cover -html coverage.out -o coverage.html'
+Read the docker-compose.yml and Dockerfile for further details.

docker-compose.yml

@@ -1,7 +1,8 @@
-version: '2'
+version: '3.7'
 
 services:
-  dev:
+  test:
+    image: go-shopify:latest
     build: .
     command: go test -v -cover ./...
     volumes:

make.bat

@@ -0,0 +1,25 @@
+@echo off
+if "%1%"=="" (
+    set cmd=container
+) else (
+    set cmd=%1%
+)
+if "%cmd%"=="container" (
+    docker-compose build test
+    goto :eof
+)
+if "%cmd%"=="test" (
+    docker-compose run --rm test
+    goto :eof
+)
+if "%cmd%"=="coverage" (
+    docker-compose run --rm test sh -c "go test -coverprofile=coverage.out ./... && go tool cover -html coverage.out -o coverage.html"
+    coverage.html
+    goto :eof
+)
+if "%cmd%"=="clean" (
+	docker image rm go-shopify
+	del coverage.html
+	del coverage.out
+    goto :eof
+)