Rewrite tests to use messages from resource file

[TakerTrip]

dev

JIRA

• Main JIRA ticket

Code reviewers

• @Mult1pers
• @Exlizardium
• @emil720a1
• @M1R4MI
• @skorpionreser
• @Loki22978964
• @Laminate32

Second Level Review

• @DrFaust555

Summary of issue

Refactored unit tests to use messages from the .resx resource file instead of hardcoded string values.

Summary of change

• Added TestMessages.resx containing expected error and exception messages.
• Added the strongly typed generated TestMessages.Designer.cs class.
• Configured resource generation in Streetcode.XUnitTest.csproj.
• Replaced hardcoded messages in unit-test assertions.
• Replaced hardcoded messages in logger verifications.
• Added formatting of parameterized resource messages using string.Format.
• Kept ordinary test data, such as URLs, titles, and DTO values, outside the resource file.

Testing approach

• Ran the complete solution test suite.
• All 153 unit tests pass.
• No failed or skipped unit tests.

Test results

Passed: 153, Failed: 0, Skipped: 0

Closes #80

CHECK LIST

• СI passed
• Сode coverage >=95%
• PR is reviewed manually again (to make sure you have 100% ready code)
• All reviewers agreed to merge the PR
• I've checked new feature as logged in and logged out user if needed
• PR meets all conventions

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud