adds eos_system integration tests (#22214)

* adds integration test cases
* updates eos_system with minor bug fixes

test/integration/targets/eos_system/tasks/cli.yaml

@@ -0,0 +1,15 @@
+---
+- name: collect all cli test cases
+  find:
+    paths: "{{ role_path }}/tests/cli"
+    patterns: "{{ testcase }}.yaml"
+  register: test_cases
+
+- name: set test_items
+  set_fact: test_items="{{ test_cases.files | map(attribute='path') | list }}"
+
+- name: run test case
+  include: "{{ test_case_to_run }}"
+  with_items: "{{ test_items }}"
+  loop_control:
+    loop_var: test_case_to_run

test/integration/targets/eos_system/tasks/eapi.yaml

@@ -0,0 +1,28 @@
+---
+- name: collect all eapi test cases
+  find:
+    paths: "{{ role_path }}/tests/eapi"
+    patterns: "{{ testcase }}.yaml"
+  register: test_cases
+
+- name: set test_items
+  set_fact: test_items="{{ test_cases.files | map(attribute='path') | list }}"
+
+- name: enable eapi
+  nxos_config:
+    lines:
+      - feature eapi
+      - eapi http port 80
+    provider: "{{ cli }}"
+
+- name: run test case
+  include: "{{ test_case_to_run }}"
+  with_items: "{{ test_items }}"
+  loop_control:
+    loop_var: test_case_to_run
+
+- name: disable eapi
+  nxos_config:
+    lines:
+      - no feature eapi
+    provider: "{{ cli }}"

test/integration/targets/eos_system/tasks/main.yaml

@@ -0,0 +1,3 @@
+---
+- { include: cli.yaml, tags: ['cli'] }
+- { include: eapi.yaml, tags: ['eapi'] }