Test Evidence: Constraint-specific account uniqueness feedback

Test type: Web
Requirement IDs: ACC-019, DB-003
Scenario IDs: AC-ACC-005 (Intern creation uniqueness boundary)
Test class/method: com.lab.labtimesheet.feature.account.controller.AccountWebIntegrationTest#duplicateNormalizedStudentCodeIsReportedOnStudentCodeRatherThanEmail
Implementation commit: 06dba4fb13eed675cc08ff8c00fe3e3650468c3b

Protected behavior

A case- and whitespace-normalized duplicate Intern student code is reported on the student-code field. A distinct email is not falsely labeled as duplicate, and unknown uniqueness constraints fall back to a non-specific conflict.

Test method

MockMvc creates one Intern through the authenticated CSRF-protected production form and then submits a second Intern with a distinct email and the same student code in different case with surrounding whitespace. PostgreSQL 18.4 enforces the real Flyway expression index; the controller maps Hibernate's known constraint name to the form field.

Hand-derived expected result

The second request returns HTTP 200 on accounts/new, retains the safe display name, shows the student-code conflict, and does not claim that the distinct email already exists.

RED

Command

export JAVA_HOME=/opt/homebrew/opt/openjdk@25
export PATH="$JAVA_HOME/bin:$PATH"
export DOCKER_HOST=unix:///Users/sechmachine/.orbstack/run/docker.sock
./mvnw -Dtest=AccountWebIntegrationTest#duplicateNormalizedStudentCodeIsReportedOnStudentCodeRatherThanEmail test

Observed result

Tests run: 1, Failures: 1, Errors: 0, Skipped: 0
PostgreSQL reported uq_intern_profiles_student_code_ci, but the form displayed "this email already exists".
BUILD FAILURE
PostgreSQL: 18.4

GREEN

Command

./mvnw -Dtest=AccountWebIntegrationTest#duplicateNormalizedStudentCodeIsReportedOnStudentCodeRatherThanEmail test

Observed result

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
BUILD SUCCESS
PostgreSQL: 18.4

Affected suite

Command and result

./mvnw -Dtest=TimeConfigurationTest,BootstrapIntegrationTest,SmtpOnboardingWebIntegrationTest,AccountActivationIntegrationTest,AccountWebIntegrationTest,BootstrapOnboardingWebIntegrationTest,JavaMailSmtpProbeTest,SecurityResponseIntegrationTest test
Tests run: 22, Failures: 0, Errors: 0, Skipped: 0
BUILD SUCCESS
PostgreSQL: 18.4

External-test boundaries

The test covers the two Platform-owned normalized identity constraints. It does not enumerate later-iteration feature constraints or perform a real-browser accessibility pass.

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