Test on Debian 10 not 8

Signed-off-by: Tim Smith <tsmith@chef.io>

.travis.yml

@@ -19,17 +19,17 @@ services: docker
 env:
   matrix:
   - INSTANCE=default-centos-7
-  - INSTANCE=default-debian-8
   - INSTANCE=default-debian-9
+  - INSTANCE=default-debian-10
   - INSTANCE=default-ubuntu-1604
   - INSTANCE=default-ubuntu-1804
-  - INSTANCE=cacher-debian-8
   - INSTANCE=cacher-debian-9
+  - INSTANCE=cacher-debian-10
   - INSTANCE=cacher-ubuntu-1604
   - INSTANCE=compile-time-ubuntu-1604
   - INSTANCE=compile-time-ubuntu-1804
-  - INSTANCE=compile-time-debian-8
   - INSTANCE=compile-time-debian-9
+  - INSTANCE=compile-time-debian-10
   - INSTANCE=unattended-upgrades-ubuntu-1604
 
 before_script:

kitchen.dokken.yml

@@ -15,15 +15,19 @@ verifier:
   name: inspec
 
 platforms:
-- name: debian-8
+- name: debian-9
   driver:
-    image: dokken/debian-8
+    image: debian:9
     pid_one_command: /bin/systemd
+    intermediate_instructions:
+      - RUN /usr/bin/apt-get update
+      - RUN /usr/bin/apt-get install -y systemd
+      - RUN rm /etc/systemd/system/getty.target.wants/getty\@tty1.service
 
-- name: debian-9
+- name: debian-10
   driver:
     # Need a custom Stretch image as dokken one contains extra packages and then we hit https://github.com/chef-cookbooks/apt/issues/234
-    image: debian:9
+    image: debian:10
     pid_one_command: /bin/systemd
     intermediate_instructions:
       - RUN /usr/bin/apt-get update

kitchen.yml

@@ -11,8 +11,8 @@ verifier:
 
 platforms:
   - name: centos-7
-  - name: debian-8
   - name: debian-9
+  - name: debian-10
   - name: ubuntu-16.04
   - name: ubuntu-18.04
   - name: ubuntu-16.04-chef-13.3

spec/unit/recipes/default_spec.rb

@@ -15,7 +15,7 @@ describe 'apt::default' do
   end
 
   it 'installs apt-transport-https, gnupg and dirmngr' do
-    expect(chef_run).to install_package(['apt-transport-https', 'gnupg', 'dirmngr'])
+    expect(chef_run).to install_package(%w(apt-transport-https gnupg dirmngr))
   end
 
   it 'creates preseeding directory' do