Copilot commented on code in PR #2263:
URL: https://github.com/apache/groovy/pull/2263#discussion_r2202289500


##########
subprojects/groovy-groovysh/src/test/groovy/org/apache/groovy/groovysh/commands/SystemTestSupport.groovy:
##########
@@ -18,35 +18,27 @@
  */
 package org.apache.groovy.groovysh.commands
 
-import groovy.test.GroovyTestCase
-import org.apache.groovy.groovysh.Groovysh
+import org.apache.groovy.groovysh.jline.GroovySystemRegistry
+import org.jline.terminal.Terminal
+import org.jline.terminal.TerminalBuilder
+
+import java.util.function.Supplier
 
 /**
- * Support for testing {@link Command} instances.
+ * Support for testing commands involving {@link GroovySystemRegistry}.
  */
-abstract class CommandTestSupport extends GroovyTestCase {
-    protected Groovysh shell
+abstract class SystemTestSupport extends ConsoleTestSupport {
 
-    protected Object lastResult
+    protected GroovySystemRegistry system
 
     @Override
     void setUp() {
         super.setUp()
-
-        shell = new Groovysh()
-
-        shell.errorHook = { Throwable cause ->
-            throw cause
-        }
-
-        shell.resultHook = { result ->
-            lastResult = result
+        Supplier workDir = { configPath.getUserConfig('.') }
+        Terminal terminal = TerminalBuilder.builder().build()
+        system = new GroovySystemRegistry(reader.parser, terminal, workDir, 
configPath).tap {

Review Comment:
   [nitpick] Consider specifying the generic type for `Supplier`, e.g. 
`Supplier<Path> workDir`, and use a more descriptive name like 
`userConfigSupplier` for clarity.
   ```suggestion
           Supplier<Path> userConfigSupplier = { configPath.getUserConfig('.') }
           Terminal terminal = TerminalBuilder.builder().build()
           system = new GroovySystemRegistry(reader.parser, terminal, 
userConfigSupplier, configPath).tap {
   ```



##########
subprojects/groovy-groovysh/src/test/groovy/org/apache/groovy/groovysh/commands/ShowTest.groovy:
##########
@@ -19,14 +19,15 @@
 package org.apache.groovy.groovysh.commands
 
 /**
- * Tests for the {@link DisplayCommand} class.
+ * Tests for the /show command.
  */
-class DisplayCommandTest extends CommandTestSupport {
-    void testDisplay() {
-        shell.execute(DisplayCommand.COMMAND_NAME)
-    }
-
-    void testDisplayWithArgs() {
-        shell.execute(DisplayCommand.COMMAND_NAME + ' foo')
+class ShowTest extends ConsoleTestSupport {
+    void testShowVariable() {
+        assert !console.hasVariable('foo')
+        console.execute('dummyName', "foo = 'bar'")

Review Comment:
   The `console.execute` call likely expects `(session, script)` rather than 
arbitrary identifiers. Replace `'dummyName'` with the actual `session` object: 
`console.execute(session, "foo = 'bar'")`.
   ```suggestion
           console.execute(session, "foo = 'bar'")
   ```



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