diff --git a/roles/validations/tasks/main.yaml b/roles/validations/tasks/main.yaml
index 1135481..766d857 100644
--- a/roles/validations/tasks/main.yaml
+++ b/roles/validations/tasks/main.yaml
@@ -43,16 +43,20 @@
     validation_dir: "--validation-dir /usr/share/ansible/validation-playbooks"
   when: not is_virtualenv.stat.exists
 
-- include: run.yaml name="{{ item }}"
+- include_tasks: run.yaml
+  vars:
+    name: "{{ item }}"
   when:
     - run_validation|default(false)|bool
     - validation_component | length > 0
   with_dict: "{{ validations_list[validation_component] }}"
 
-- include: list.yaml
-
-- include: show.yaml name="{{ item }}"
+- include_tasks: show.yaml
+  vars:
+    name: "{{ item }}"
   when:
     - run_validation|default(false)|bool
     - validation_component | length > 0
   with_dict: "{{ validations_list[validation_component] }}"
+
+- include_tasks: list.yaml
diff --git a/roles/validations/tasks/run.yaml b/roles/validations/tasks/run.yaml
index cc9c8f0..2d7e38a 100644
--- a/roles/validations/tasks/run.yaml
+++ b/roles/validations/tasks/run.yaml
@@ -1,22 +1,21 @@
 ---
-- name: Run validations
-  register: run_validation
+- name: Run validations - positive - these are supposed to pass
   shell:
     cmd: >-
       {{ validation_command }} run --validation {{ name.key }}
       {{ validation_dir }} {{ ansible_dir }}
       --inventory {{ inventory }}
-      --output-log validation_{{ name.key }}.log
+      --output-log validation_{{ name.key }}_positive.log
       {{ name.value.extra_args }}
       {{ name.value.extra_env_args }}
     executable: /bin/bash
 
-- name: Get Run results
+- name: Get Run results - positive - these are supposed to pass
   block:
     - name: Get run results
       register: result
       shell:
-        cmd: "cat validation_{{ name.key }}.log"
+        cmd: "cat validation_{{ name.key }}_positive.log"
         executable: /bin/bash
 
     - name: Get json data
@@ -30,8 +29,49 @@
         jsonres: 'results[*].Status'
 
     - fail:
-        msg: "Validation failed with {{ validation_status }}: some of the validations has failed. {{ status }}"
+        msg: "Validation failed with {{ validation_status }}: some of the validations have failed. {{ status }}"
       when: validation_status != "PASSED"
       loop: "{{ status }}"
       loop_control:
         loop_var: validation_status
+
+- name: Run validations - negative - these are not supposed to pass
+  shell:
+    cmd: >-
+      {{ validation_command }} run --validation {{ name.key }}
+      {{ validation_dir }} {{ ansible_dir }}
+      --inventory {{ inventory }}
+      --output-log validation_{{ name.key }}_negative.log
+      {{ name.value.negative_results.extra_args }}
+      {{ name.value.extra_env_args }}
+    executable: /bin/bash
+  when: "'negative_results' in name.value "
+  ignore_errors: true
+
+- name: Get Run results - negative - these are not supposed to pass
+  # This task should fail with return code != 0
+  # The validation is supplied with parameters that make it impossible to pass.
+  block:
+    - name: Get run results
+      register: result
+      shell:
+        cmd: "cat validation_{{ name.key }}_negative.log"
+        executable: /bin/bash
+
+    - name: Get json data
+      set_fact:
+        jsondata: "{{ result.stdout | from_json }}"
+
+    - name: Get Validations Status
+      set_fact:
+        status: "{{ jsondata | json_query(jsonres) }}"
+      vars:
+        jsonres: 'results[*].Status'
+
+    - fail:
+        msg: "Validation passed with {{ validation_status }} when it shouldn't have: some of the validations have passed. {{ status }}"
+      when: validation_status == "PASSED"
+      loop: "{{ status }}"
+      loop_control:
+        loop_var: validation_status
+  when: "'negative_results' in name.value"
diff --git a/roles/validations/tasks/show.yaml b/roles/validations/tasks/show.yaml
index ee40981..37a4565 100644
--- a/roles/validations/tasks/show.yaml
+++ b/roles/validations/tasks/show.yaml
@@ -2,5 +2,5 @@
 - name: Show Validation
   register: show_output
   shell:
-    cmd: "{{ validation_command }} show {{ validation_dir }} --validation {{ name.key }} -f json > {{ val_working_dir }}/show.log 2>&1"
+    cmd: "{{ validation_command }} show {{ validation_dir }} {{ name.key }} -f json > {{ val_working_dir }}/show.log 2>&1"
     executable: /bin/bash
diff --git a/roles/validations/tasks/validations.yaml b/roles/validations/tasks/validations.yaml
index c4a54be..49457cf 100644
--- a/roles/validations/tasks/validations.yaml
+++ b/roles/validations/tasks/validations.yaml
@@ -7,7 +7,7 @@
 - name: set fact for Validation action
   set_fact: v_action="{{ action }}"
 
-- name: Get Run results
+- name: Get Run results - Positive - these are supposed to pass
   block:
     - name: Get run results
       register: result
@@ -26,9 +26,39 @@
         jsonres: 'results[*].Status'
 
     - fail:
-        msg: "Validation failed with {{ validation_status }}: some of the validations has failed. {{ status }}"
+        msg: "Validation failed with {{ validation_status }}: some of the validations have failed. {{ status }}"
       when: validation_status != "PASSED"
       loop: "{{ status }}"
       loop_control:
         loop_var: validation_status
-  when: v_action == "run"
+  when: v_action == 'run'
+
+- name: Get Run results - Negative - these are supposed to fail
+  # This task should fail with return code != 0
+  # The validation is supplied with parameters that make it impossible to pass.
+  block:
+    - name: Get run results
+      register: result
+      shell:
+        cmd: "cat {{ val_output }}"
+        executable: /bin/bash
+
+    - name: Get json data
+      set_fact:
+        jsondata: "{{ result.stdout | from_json }}"
+
+    - name: Get Validations Status
+      set_fact:
+        status: "{{ jsondata | json_query(jsonres) }}"
+      vars:
+        jsonres: 'results[*].Status'
+
+    - fail:
+        msg: "Validation passed with {{ validation_status }} when it shouldn't have: some of the validations have passed. {{ status }}"
+      when: validation_status == "PASSED"
+      loop: "{{ status }}"
+      loop_control:
+        loop_var: validation_status
+  when:
+    - v_action == 'run'
+    - "'negative_results' in name.value"
diff --git a/roles/validations/vars/main.yaml b/roles/validations/vars/main.yaml
index 5f1248b..9942bb5 100644
--- a/roles/validations/vars/main.yaml
+++ b/roles/validations/vars/main.yaml
@@ -12,12 +12,16 @@ validations_list:
         extra_env_args: "{{ extra_env_vars | default('') }}"
   validation:
     - check-cpu:
+        negative_results:
+          extra_args: "--extra-vars minimal_cpu_count=20000"
         extra_args: "--extra-vars minimal_cpu_count=2"
         extra_env_args: "--extra-env-vars ANSIBLE_STDOUT_CALLBACK=default {{ extra_env_vars | default('') }}"
     - 512e:
         extra_args: ""
         extra_env_args: ""
     - check-ram:
+        negative_results:
+          extra_args: "--extra-vars minimal_ram_gb=2000000"
         extra_args: "--extra-vars minimal_ram_gb=2"
         extra_env_args: "--extra-env-vars ANSIBLE_STDOUT_CALLBACK=default {{ extra_env_vars | default('') }}"
   tripleo: