Test case descriptions for Tempest smoke tests

Adding a high-level description of the Tempest smoke tests.
As agreed on the last Dovetail call, we are aiming for a relatively low
level of detail and instead point to available documentation. As the
tests themselves are quite simple of read, this is the best,
most concise, and up-to-date version of documentation we can find.

JIRA: DOVETAIL-599

Change-Id: I985592c55fd415e254e70db6c6480c7bf3670a29
Signed-off-by: dimitris.tsiolakis <dmts@intracom-telecom.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/docs/testing/user/testspecification/tempest_image/index.rst b/docs/testing/user/testspecification/tempest_image/index.rst
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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+.. (c) Ericsson AB
+
+===========================================
+Tempest Image test specification
+===========================================
+
+
+Scope
+=====
+
+The Tempest Image test area tests the basic operations of Images of the System Under
+Test (SUT) through the life of a VNF. The tests in this test area will evaluate IPv4
+network runtime operations functionality.
+
+References
+==========
+
+`Image Service API v2 <https://developer.openstack.org/api-ref/image/v2/index.html#images>`_
+
+System Under Test (SUT)
+=======================
+
+The system under test is assumed to be the NFVi and VIM in operation on a
+Pharos compliant infrastructure.
+
+Test Area Structure
+===================
+
+The test area is structured in individual tests as listed below.
+For detailed information on the individual steps and assertions performed
+by the tests, review the Python source code accessible via the following links:
+
+All these test cases are included in the test case dovetail.tempest.image of
+OVP test suite.
+
+- `Register, Upload, Get Image and Get Image File API's <https://github.com/openstack/tempest/blob/18.0.0/tempest/api/image/v2/test_images.py#L32>`_
+    - tempest.api.image.v2.test_images.BasicOperationsImagesTest.test_register_upload_get_image_file
+
+- `List Versions <https://github.com/openstack/tempest/blob/18.0.0/tempest/api/image/v2/test_versions.py>`_
+    - tempest.api.image.v2.test_versions.VersionsTest.test_list_versions
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