Update GetImageBlob/GetImagesBlob to return error as second element #166

	name: Test

	on:
	push:
	tags:
	- "*"
	branches-ignore:
	- 'exp_*'
	pull_request:
	branches-ignore:
	- 'exp_*'

	jobs:
	test:
	name: Test ImageMagick7 linux
	runs-on: ubuntu-latest
	environment: imagemagick7
	env:
	DOCKER_IMAGE: gographics/imagick.v3:im-${{ vars.IMAGEMAGICK7_VERSION }}
	# We want to run on external PRs, but not on our own internal PRs as they'll be run
	# by the push to the branch.
	if: github.event_name == 'push' \|\| github.event.pull_request.head.repo.full_name != github.repository
	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Test
	run: \|
	docker run --rm \
	-v $PWD:/go/projects/imagick \
	-v $PWD/.cache/go-build:/root/.cache/go-build \
	-v $PWD/.cache/go/pkg:/go/pkg \
	"$DOCKER_IMAGE"

	test_windows:
	name: Test ImageMagick7 windows
	runs-on: windows-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v1
	with:
	fetch-depth: 1

	- name: Setup go
	uses: actions/[email protected]
	with:
	go-version: 1.20.6

	- name: Setup MSYS2
	uses: msys2/setup-msys2@v2
	with:
	update: true
	install: >-
	base-devel
	mingw-w64-x86_64-toolchain
	mingw-w64-x86_64-pkg-config
	mingw-w64-x86_64-imagemagick

	- name: Install deps
	shell: msys2 {0}
	run: \|
	/c/hostedtoolcache/windows/go/1.20.6/x64/bin/go.exe env
	pkg-config --cflags --libs MagickWand
	MAGICK_CONFIGURE_PATH=/d/a/_temp/msys/msys64/mingw64/etc/ImageMagick-7 convert -list configure

	- name: Test
	shell: msys2 {0}
	run: >
	MAGICK_CONFIGURE_PATH=/d/a/_temp/msys/msys64/mingw64/etc/ImageMagick-7
	/c/hostedtoolcache/windows/go/1.20.6/x64/bin/go.exe test -v ./imagick

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