[Serverless][Security Solution][Endpoint] Unskip file operations tests (#171984)

## Summary

Unskips file operation cypress tests

**Flaky runner**
-
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4063
x 100 ( 3 failures ) - 1 vagrant error, 1 file not found at path, 1
waiting on fleet server error
-
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4093
x 100 ( 7 failures ) - file not found at path
-
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4129
x 100 ( 6 failures ) - file not found at path
-
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4146
x 100 ( 3 failures ) - file not found at path
-
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4208
x 100 ( 5 failures ) - file not found at path

_with longer file read timeout_
(8281739e67)
-
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4218
x 100 ( all pass )

_with split assertions and timeout_
(74813ef815)
-
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4228
x 100 ( 6 fails )

_with API wait_ (cc2cba9539)
-
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4253
x 100 ( 1 failure related to fleet not available )

### Checklist

- [x] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios

---------

Signed-off-by: Ash <1849116+ashokaditya@users.noreply.github.com>

x-pack/plugins/security_solution/public/management/cypress/cypress_base.config.ts

@@ -66,6 +66,7 @@ export const getCypressBaseConfig = (
         // grep related configs
         grepFilterSpecs: true,
         grepOmitFiltered: true,
+        IS_CI: process.env.CI,
       },
 
       e2e: {

x-pack/plugins/security_solution/public/management/cypress/e2e/response_actions/response_console/file_operations.cy.ts

@@ -26,9 +26,8 @@ describe('Response console', { tags: ['@ess', '@serverless'] }, () => {
     login();
   });
 
-  // FLAKY: https://github.com/elastic/kibana/issues/170482
-  describe.skip('File operations:', () => {
-    const homeFilePath = process.env.CI || true ? '/home/vagrant' : `/home/ubuntu`;
+  describe('File operations:', () => {
+    const homeFilePath = Cypress.env('IS_CI') ? '/home/vagrant' : '/home/ubuntu';
 
     const fileContent = 'This is a test file for the get-file command.';
     const filePath = `${homeFilePath}/test_file.txt`;
@@ -68,38 +67,52 @@ describe('Response console', { tags: ['@ess', '@serverless'] }, () => {
     });
 
     it('"get-file --path" - should retrieve a file', () => {
+      const downloadsFolder = Cypress.config('downloadsFolder');
+
       waitForEndpointListPageToBeLoaded(createdHost.hostname);
       cy.task('createFileOnEndpoint', {
         hostname: createdHost.hostname,
         path: filePath,
         content: fileContent,
       });
+
+      // initiate get file action and wait for the API to complete
+      cy.intercept('api/endpoint/action/get_file').as('getFileAction');
       openResponseConsoleFromEndpointList();
       inputConsoleCommand(`get-file --path ${filePath}`);
       submitCommand();
-      cy.getByTestSubj('getFileSuccess', { timeout: 60000 }).within(() => {
+      cy.wait('@getFileAction', { timeout: 60000 });
+
+      // verify that the file was retrieved
+      // and that the file download link is available
+      cy.getByTestSubj('getFileSuccess').within(() => {
         cy.contains('File retrieved from the host.');
         cy.contains('(ZIP file passcode: elastic)');
         cy.contains(
           'Files are periodically deleted to clear storage space. Download and save file locally if needed.'
         );
-        cy.contains('Click here to download').click();
-        const downloadsFolder = Cypress.config('downloadsFolder');
-        cy.readFile(`${downloadsFolder}/upload.zip`);
+        cy.contains('Click here to download').should('exist');
+      });
 
-        cy.task('uploadFileToEndpoint', {
-          hostname: createdHost.hostname,
-          srcPath: `${downloadsFolder}/upload.zip`,
-          destPath: `${homeFilePath}/upload.zip`,
-        });
+      cy.contains('Click here to download').click();
 
-        cy.task('readZippedFileContentOnEndpoint', {
-          hostname: createdHost.hostname,
-          path: `${homeFilePath}/upload.zip`,
-          password: 'elastic',
-        }).then((unzippedFileContent) => {
-          expect(unzippedFileContent).to.equal(fileContent);
-        });
+      // wait for file to be downloaded
+      cy.readFile(`${downloadsFolder}/upload.zip`, { timeout: 120000 }).should('exist');
+
+      // move the zip file to VM
+      cy.task('uploadFileToEndpoint', {
+        hostname: createdHost.hostname,
+        srcPath: `${downloadsFolder}/upload.zip`,
+        destPath: `${homeFilePath}/upload.zip`,
+      });
+
+      // unzip the file and read its content
+      cy.task('readZippedFileContentOnEndpoint', {
+        hostname: createdHost.hostname,
+        path: `${homeFilePath}/upload.zip`,
+        password: 'elastic',
+      }).then((unzippedFileContent) => {
+        expect(unzippedFileContent).to.equal(fileContent);
       });
     });