set correct maven scope for java tasks

Update the Java task runner to detect if the current file is inside a
test directory ('src/test/'). Depending on the file location, Maven
will now dynamically select 'test-compile' and 'test' classpath scope
or 'compile' and 'runtime' scope. This ensures that main classes are
executed with the correct dependencies and build targets.

Additionally, the Rust test suite has been heavily refactored. It now
utilizes a builder pattern (TestProject and TaskRunner) to simplify
setup, improve readability, and add test coverage for both runtime
and test execution paths across Maven and Gradle.

Author: drmaniac

languages/java/tasks.json

@@ -1,7 +1,7 @@
 [
   {
     "label": "Run $ZED_CUSTOM_java_class_name",
-    "command": "pkg=\"$ZED_CUSTOM_java_package_name\"; cls=\"$ZED_CUSTOM_java_class_name\"; if [ -n \"$pkg\" ]; then c=\"$pkg.$cls\"; else c=\"$cls\"; fi; f=\"$ZED_FILE\"; p=\"$PWD\"; d=$(dirname \"${f#$p/}\"); if [ -f pom.xml ]; then m=\".\"; md=\"$d\"; while [ \"$md\" != \".\" ] && [ \"$md\" != \"/\" ]; do if [ -f \"$md/pom.xml\" ]; then m=\"$md\"; break; fi; md=$(dirname \"$md\"); done; [ -f ./mvnw ] && CMD=\"./mvnw\" || CMD=\"mvn\"; if [ \"$m\" = \".\" ]; then $CMD clean test-compile exec:java -Dexec.mainClass=\"$c\" -Dexec.classpathScope=test; else $CMD clean test-compile -pl \"$m\" -am && $CMD exec:java -pl \"$m\" -Dexec.mainClass=\"$c\" -Dexec.classpathScope=test; fi; elif [ -f build.gradle ] || [ -f build.gradle.kts ] || [ -f settings.gradle ] || [ -f settings.gradle.kts ]; then m=\".\"; md=\"$d\"; while [ \"$md\" != \".\" ] && [ \"$md\" != \"/\" ]; do if [ -f \"$md/build.gradle\" ] || [ -f \"$md/build.gradle.kts\" ]; then m=\"$md\"; break; fi; md=$(dirname \"$md\"); done; if [ \"$m\" = \".\" ]; then mp=\"\"; else mp=\":$(echo \"$m\" | tr '/' ':')\"; fi; [ -f ./gradlew ] && CMD=\"./gradlew\" || CMD=\"gradle\"; $CMD ${mp}:run -PmainClass=\"$c\"; else find . -name '*.java' -not -path './bin/*' -not -path './target/*' -not -path './build/*' -print0 | xargs -0 javac -d bin && java -cp bin \"$c\"; fi;",
+    "command": "pkg=\"$ZED_CUSTOM_java_package_name\"; cls=\"$ZED_CUSTOM_java_class_name\"; if [ -n \"$pkg\" ]; then c=\"$pkg.$cls\"; else c=\"$cls\"; fi; f=\"$ZED_FILE\"; p=\"$PWD\"; d=$(dirname \"${f#$p/}\"); if [ -f pom.xml ]; then m=\".\"; md=\"$d\"; while [ \"$md\" != \".\" ] && [ \"$md\" != \"/\" ]; do if [ -f \"$md/pom.xml\" ]; then m=\"$md\"; break; fi; md=$(dirname \"$md\"); done; [ -f ./mvnw ] && CMD=\"./mvnw\" || CMD=\"mvn\"; case \"$f\" in *\"/src/test/\"*) COMPILE_GOAL=\"test-compile\"; CLASSPATH_SCOPE=\"test\";; *) COMPILE_GOAL=\"compile\"; CLASSPATH_SCOPE=\"runtime\";; esac; if [ \"$m\" = \".\" ]; then $CMD clean $COMPILE_GOAL exec:java -Dexec.mainClass=\"$c\" -Dexec.classpathScope=$CLASSPATH_SCOPE; else $CMD clean $COMPILE_GOAL -pl \"$m\" -am && $CMD exec:java -pl \"$m\" -Dexec.mainClass=\"$c\" -Dexec.classpathScope=$CLASSPATH_SCOPE; fi; elif [ -f build.gradle ] || [ -f build.gradle.kts ] || [ -f settings.gradle ] || [ -f settings.gradle.kts ]; then m=\".\"; md=\"$d\"; while [ \"$md\" != \".\" ] && [ \"$md\" != \"/\" ]; do if [ -f \"$md/build.gradle\" ] || [ -f \"$md/build.gradle.kts\" ]; then m=\"$md\"; break; fi; md=$(dirname \"$md\"); done; if [ \"$m\" = \".\" ]; then mp=\"\"; else mp=\":$(echo \"$m\" | tr '/' ':')\"; fi; [ -f ./gradlew ] && CMD=\"./gradlew\" || CMD=\"gradle\"; $CMD ${mp}:run -PmainClass=\"$c\"; else find . -name '*.java' -not -path './bin/*' -not -path './target/*' -not -path './build/*' -print0 | xargs -0 javac -d bin && java -cp bin \"$c\"; fi;",
     "use_new_terminal": false,
     "reveal": "always",
     "tags": ["java-main"],