Merging to release-5.8.0: [TT-7306] Revert allow list to migrated mock response (#6946) (#6949)

### **User description**
[TT-7306] Revert allow list to migrated mock response (#6946)

### **User description**
<details open>
<summary><a href="https://tyktech.atlassian.net/browse/TT-7306"
title="TT-7306" target="_blank">TT-7306</a></summary>
  <br />
  <table>
    <tr>
      <th>Summary</th>
<td>[OAS:migration] Migrate Mock Response from Classic API Definition to
OAS API Definition</td>
    </tr>
    <tr>
      <th>Type</th>
      <td>
<img alt="Bug"

src="https://tyktech.atlassian.net/rest/api/2/universal_avatar/view/type/issuetype/avatar/10303?size=medium"
/>
        Bug
      </td>
    </tr>
    <tr>
      <th>Status</th>
      <td>In Dev</td>
    </tr>
    <tr>
      <th>Points</th>
      <td>N/A</td>
    </tr>
    <tr>
      <th>Labels</th>
<td><a

href="https://tyktech.atlassian.net/issues?jql=project%20%3D%20TT%20AND%20labels%20%3D%20QA_Fail%20ORDER%20BY%20created%20DESC"
title="QA_Fail">QA_Fail</a></td>
    </tr>
  </table>
</details>
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---

<!-- Provide a general summary of your changes in the Title above -->

## Description

<!-- Describe your changes in detail -->

This PR makes sure that `allow_list` is not removed from migrated mock
responses

## Related Issue

<!-- This project only accepts pull requests related to open issues. -->
<!-- If suggesting a new feature or change, please discuss it in an
issue first. -->
<!-- If fixing a bug, there should be an issue describing it with steps
to reproduce. -->
<!-- OSS: Please link to the issue here. Tyk: please create/link the
JIRA ticket. -->
https://tyktech.atlassian.net/browse/TT-7306

## Motivation and Context

<!-- Why is this change required? What problem does it solve? -->

## How This Has Been Tested

<!-- Please describe in detail how you tested your changes -->
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etc. -->
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## Screenshots (if appropriate)

## Types of changes

<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Refactoring or add test (improvements in base code or adds test
coverage to functionality)

## Checklist

<!-- Go over all the following points, and put an `x` in all the boxes
that apply -->
<!-- If there are no documentation updates required, mark the item as
checked. -->
<!-- Raise up any additional concerns not covered by the checklist. -->

- [ ] I ensured that the documentation is up to date
- [ ] I explained why this PR updates go.mod in detail with reasoning
why it's required
- [ ] I would like a code coverage CI quality gate exception and have
explained why


___

### **PR Type**
- Enhancement
- Tests



___

### **Description**
- Remove resetting of allow list in OAS operations.

- Update fixture tests with structured allow and block settings.

- Add new test cases for block list and classic mock response.


___



### **Changes walkthrough** 📝
<table><thead><tr><th></th><th align="left">Relevant

files</th></tr></thead><tbody><tr><td><strong>Enhancement</strong></td><td><table>
<tr>
  <td>
    <details>
<summary><strong>operation.go</strong><dd><code>Remove nil-reset of
allow in operation config.</code>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </dd></summary>
<hr>

apidef/oas/operation.go

<li>Removed resetting allow property to nil.<br> <li> Preserve allow
configuration for mock responses.


</details>


  </td>
<td><a

href="https://github.com/TykTechnologies/tyk/pull/6946/files#diff-6d92d2d5b09a5fa7129609bb7cd0d383d015250ec07062b6a93a83257be51fb5">+0/-2</a>&nbsp;
&nbsp; &nbsp; </td>

</tr>
</table></td></tr><tr><td><strong>Tests</strong></td><td><table>
<tr>
  <td>
    <details>
<summary><strong>mock_response.yml</strong><dd><code>Update mock
response fixtures allow/block configuration.</code>&nbsp;
</dd></summary>
<hr>

apidef/oas/testdata/fixtures/mock_response.yml

<li>Replace allow: <nil> with explicit allow block.<br> <li> Add new
block list test and update response settings.<br> <li> Enable allow list
with enabled flag in fixtures.


</details>


  </td>
<td><a

href="https://github.com/TykTechnologies/tyk/pull/6946/files#diff-c7c72a9398d68abedf9238cc2a9606521069e13034f921e7a979d859e0559c8d">+96/-4</a>&nbsp;
&nbsp; </td>

</tr>
</table></td></tr></tr></tbody></table>

___

> <details> <summary> Need help?</summary><li>Type <code>/help how to
...</code> in the comments thread for any questions about PR-Agent
usage.</li><li>Check out the <a
href="https://qodo-merge-docs.qodo.ai/usage-guide/">documentation</a>
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[TT-7306]:
https://tyktech.atlassian.net/browse/TT-7306?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ


___

### **PR Type**
- Enhancement
- Tests



___

### **Description**
- Removed resetting of `allow` field in OAS operations.

- Updated fixture YAML to use explicit `allow` settings and add `block`
configuration.

- Added new test cases for both block list and basic mock response in
classic endpoints.


___



### **Changes walkthrough** 📝
<table><thead><tr><th></th><th align="left">Relevant
files</th></tr></thead><tbody><tr><td><strong>Enhancement</strong></td><td><table>
<tr>
  <td>
    <details>
<summary><strong>operation.go`</strong><dd><code>Remove nil reset for
allow configuration.</code>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
</dd></summary>
<hr>

`apidef/oas/operation.go`

<li>Removed line that resets <code>allow</code> to nil.<br> <li> Ensured
preservation of allow configuration.


</details>


  </td>
  <td><a href=""></a></td>

</tr>
</table></td></tr><tr><td><strong>Tests</strong></td><td><table>
<tr>
  <td>
    <details>
<summary><strong>mock_response.yml`</strong><dd><code>Update fixtures
with explicit allow and block settings.</code>&nbsp; &nbsp;
</dd></summary>
<hr>

`apidef/oas/testdata/fixtures/mock_response.yml`

<li>Replaced <code>allow: <nil></code> with explicit structure.<br> <li>
Introduced <code>block: <nil></code> where applicable.<br> <li> Added
new fixture entries for block list and basic mock response.


</details>


  </td>
  <td><a href=""></a></td>

</tr>
</table></td></tr><tr><td><strong>Additional
files</strong></td><td><table>
<tr>
  <td><strong>operation.go</strong></td>
<td><a
href="https://github.com/TykTechnologies/tyk/pull/6949/files#diff-6d92d2d5b09a5fa7129609bb7cd0d383d015250ec07062b6a93a83257be51fb5">+0/-2</a>&nbsp;
&nbsp; &nbsp; </td>

</tr>

<tr>
  <td><strong>mock_response.yml</strong></td>
<td><a
href="https://github.com/TykTechnologies/tyk/pull/6949/files#diff-c7c72a9398d68abedf9238cc2a9606521069e13034f921e7a979d859e0559c8d">+96/-4</a>&nbsp;
&nbsp; </td>

</tr>
</table></td></tr></tr></tbody></table>

___

> <details> <summary> Need help?</summary><li>Type <code>/help how to
...</code> in the comments thread for any questions about PR-Agent
usage.</li><li>Check out the <a
href="https://qodo-merge-docs.qodo.ai/usage-guide/">documentation</a>
for more information.</li></details>

Co-authored-by: Edson Michaque <[email protected]>

Author: buger

apidef/oas/operation.go

@@ -265,8 +265,6 @@ func (s *OAS) fillMockResponsePaths(paths openapi3.Paths, ep apidef.ExtendedPath
 			tykOperation.MockResponse = nil
 			tykOperation.IgnoreAuthentication = nil
 		}
-
-		tykOperation.Allow = nil
 	}
 }
 

apidef/oas/testdata/fixtures/mock_response.yml

@@ -164,7 +164,9 @@ tests:
         middleware:
           operations:
             testGET:
-              allow: <nil>
+              block: <nil>
+              allow:
+                enabled: true
               mockResponse:
                 enabled: true
                 code: 200
@@ -241,7 +243,9 @@ tests:
         middleware:
           operations:
             testGET:
-              allow: <nil>
+              block: <nil>
+              allow:
+                enabled: true
               mockResponse:
                 enabled: true
                 code: 200
@@ -252,7 +256,8 @@ tests:
               ignoreAuthentication:
                 enabled: true
             testPOST:
-              allow: <nil>
+              allow:
+                enabled: true
               mockResponse:
                 enabled: true
                 code: 201
@@ -301,7 +306,9 @@ tests:
         middleware:
           operations:
             testGET:
-              allow: <nil>
+              block: <nil>
+              allow:
+                enabled: false
               mockResponse:
                 enabled: false
                 code: 404
@@ -335,3 +342,88 @@ tests:
       x-tyk-api-gateway:
         middleware:
           operations: {}
+  - desc: "block list - classic"
+    source: "classic"
+    input:
+      version_data:
+        versions:
+          "":
+            extended_paths:
+              black_list:
+                - path: "/test"
+                  method: ""
+                  ignore_case: false
+                  disabled: false
+                  method_actions:
+                    GET:
+                      action: "reply"
+                      code: 200
+                      headers:
+                        Content-Type: "application/json"
+                      data: '{"message": "success"}'
+    output:
+      paths:
+        /test:
+          get:
+            operationId: testGET
+            responses:
+              "200":
+                description: ''
+      x-tyk-api-gateway:
+        middleware:
+          operations:
+            testGET:
+              allow: <nil>
+              block:
+                enabled: true
+              mockResponse:
+                enabled: true
+                code: 200
+                body: '{"message": "success"}'
+                headers:
+                  - name: Content-Type
+                    value: application/json
+              ignoreAuthentication:
+                enabled: true
+  - desc: "basic mock response - classic"
+    source: "classic"
+    input:
+      version_data:
+        versions:
+          "":
+            extended_paths:
+              ignored:
+                - path: "/test"
+                  method: ""
+                  ignore_case: false
+                  disabled: false
+                  method_actions:
+                    GET:
+                      action: "reply"
+                      code: 200
+                      headers:
+                        Content-Type: "application/json"
+                      data: '{"message": "success"}'
+    output:
+      paths:
+        /test:
+          get:
+            operationId: testGET
+            responses:
+              "200":
+                description: ''
+      x-tyk-api-gateway:
+        middleware:
+          operations:
+            testGET:
+              allow: <nil>
+              block: <nil>
+              mockResponse:
+                enabled: true
+                code: 200
+                body: '{"message": "success"}'
+                headers:
+                  - name: Content-Type
+                    value: application/json
+              ignoreAuthentication:
+                enabled: true