Test ec2_vpc_nat_gateway failures

test_failures.yml

---
  - name: Test VPC NAT Gateway Module
    hosts: localhost
    connection: local
    gather_facts: False
    tasks:
      - name: test fail with invalid state
        ec2_vpc_nat_gateway:
          state: notpresent
          subnet_id: "subnet-a67643d1"
          allocation_id: "eipalloc-a32baec6"
        ignore_errors: yes
      - name: test fail with state present but subnet id not specified
        ec2_vpc_nat_gateway:
          state: present
          allocation_id: "eipalloc-a32baec6"
        ignore_errors: yes
      - name: test fail with state present but allocation id not specified
        ec2_vpc_nat_gateway:
          state: present
          subnet_id: "subnet-a67643d1"
        ignore_errors: yes
      - name: test fail with wait_timeout not an integer
        ec2_vpc_nat_gateway:
          state: present
          subnet_id: "subnet-a67643d1"
          allocation_id: "eipalloc-a32baec6"
          wait_timeout: three
        ignore_errors: yes
      - name: test fail with invalid allocation id
        ec2_vpc_nat_gateway:
          state: present
          subnet_id: "subnet-a67643d1"
          allocation_id: "eipalloc-incorrect"
          wait_timeout: 200
        ignore_errors: yes