Add organising module: DisplayNameGenerator/@Nested/@Tag demos on JUnit 6.1.3

Companion code for the rewritten post "Organising and Displaying JUnit Tests: @DisplayName, @Nested, @Tag (JUnit 5 -> JUnit 6)". Same suite also runs green on JUnit 5.14.4 via -Djunit.version. Verified, not assumed: GA dates and versions cross-checked against Maven Central metadata and docs.junit.org release notes; the @TestMethodOrder-inheritance-into-@Nested-classes and MethodOrderer.Default/ClassOrderer.Default behaviour differences between 5.14.4 and 6.1.3 are demonstrated by actually running the same source under both engines (see organising/output/12-* and 14-*), not by reading about them. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01YXCrLgRKFgCh9RHKW8xaqJ
2026-10-01 04:38:28 +00:00
parent cfc6c79fc3
commit bfc67986bc
43 changed files with 1124 additions and 0 deletions
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# Compiles src/broken/MethodOrdererDefaultDemo.java against both JUnit versions and captures the
+# REAL compiler output. MethodOrderer.Default was added in JUnit 6.0; this file is excluded from the
+# normal build (it lives under src/broken, not src/test) precisely because it will not compile on 5.x.
+set -uo pipefail
+cd "$(dirname "$0")/.."
+
+mvn -q -B dependency:build-classpath -Dmdep.outputFile=/tmp/cp-6.1.3.txt
+mvn -q -B dependency:build-classpath -Dmdep.outputFile=/tmp/cp-5.14.4.txt -Djunit.version=5.14.4
+
+mkdir -p /tmp/broken-compile-out/6 /tmp/broken-compile-out/5
+
+{
+  echo '$ javac -cp <junit-jupiter-6.1.3 and its dependencies> src/broken/MethodOrdererDefaultDemo.java'
+  javac -cp "$(cat /tmp/cp-6.1.3.txt)" -d /tmp/broken-compile-out/6 src/broken/MethodOrdererDefaultDemo.java
+  echo "(compiled cleanly)"
+} > output/15-broken-compile-junit6.1.3.txt 2>&1
+
+{
+  echo '$ javac -cp <junit-jupiter-5.14.4 and its dependencies> src/broken/MethodOrdererDefaultDemo.java'
+  javac -cp "$(cat /tmp/cp-5.14.4.txt)" -d /tmp/broken-compile-out/5 src/broken/MethodOrdererDefaultDemo.java
+} > output/16-broken-compile-junit5.14.4.txt 2>&1
+
+cat output/15-broken-compile-junit6.1.3.txt
+echo
+cat output/16-broken-compile-junit5.14.4.txt
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# Captures the real Surefire console output of LoanDeskTest run with no filter, -Dgroups=fast, and
+# -Dgroups=slow - this is what a reader actually sees typing these commands, not a paraphrase.
+set -uo pipefail
+cd "$(dirname "$0")/.."
+
+{
+  echo '$ mvn test -Dtest=LoanDeskTest   (no tag filter - everything runs)'
+  mvn -B test -Dtest=LoanDeskTest 2>&1 | sed -n '/T E S T S/,/^\[INFO\] Results/p'
+  echo
+  echo '$ mvn test -Dgroups=fast -Dtest=LoanDeskTest'
+  mvn -B test -Dgroups=fast -Dtest=LoanDeskTest 2>&1 | sed -n '/T E S T S/,/^\[INFO\] Results/p'
+  echo
+  echo '$ mvn test -Dgroups=slow -Dtest=LoanDeskTest'
+  mvn -B test -Dgroups=slow -Dtest=LoanDeskTest 2>&1 | sed -n '/T E S T S/,/^\[INFO\] Results/p'
+} > output/17-mvn-cli-tag-filter.txt
+
+cat output/17-mvn-cli-tag-filter.txt
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# Regenerates every file in output/ from scratch. Requires JDK 17+ and Maven on PATH.
+set -euo pipefail
+cd "$(dirname "$0")/.."
+
+rm -rf output
+mkdir -p output
+
+echo "== 1/4: full suite on the default version (JUnit 6.1.3) =="
+mvn -q -B test
+
+echo "== 2/4: same suite on JUnit 5.14.4, keep only the two version-sensitive transcripts =="
+mvn -q -B test -Djunit.version=5.14.4
+cp output/12-nested-sibling-order-run1.txt output/12-nested-sibling-order-junit5.14.4.txt
+cp output/14-method-order-inheritance.txt output/14-method-order-inheritance-junit5.14.4.txt
+
+echo "== 3/4: back to the default version so output/ reflects JUnit 6.1.3 everywhere else =="
+mvn -q -B test
+
+echo "== 4/4: compiler-message transcripts for the broken/ demo, and a real mvn CLI tag-filter run =="
+./scripts/broken-compile.sh
+./scripts/mvn-cli-tag-filter.sh
+
+echo "Done. See output/ for every transcript the article links to."