1 files changed, 54 insertions, 0 deletions
diff --git a/modules/test/test-suite.js b/modules/test/test-suite.js
index 760259d..925a83e 100644
--- a/modules/test/test-suite.js
+++ b/modules/test/test-suite.js
@@ -242,6 +242,60 @@ class TestSuiteModule {
                 destructive: false
             },
 
+            // ── Aliases ──
+            'alias-list': {
+                desc: 'alias shows built-in defaults',
+                cmd: 'alias',
+                expect: (out) => out.includes('ll=ls') && out.includes('h=help') && out.includes('cls=clear') && out.includes('sh=script'),
+                destructive: false
+            },
+            'alias-show-specific': {
+                desc: 'alias <name> shows a specific alias value',
+                cmd: 'alias ll',
+                expect: (out) => out.includes('ll=ls') && out.includes('built-in'),
+                destructive: false
+            },
+            'alias-missing-unknown': {
+                desc: 'alias <unknown> shows not found',
+                cmd: 'alias non_existent_alias_xyz',
+                expect: (out) => out.includes('not found'),
+                destructive: false
+            },
+            'unalias-builtin-refused': {
+                desc: 'unalias refuses to remove built-in alias',
+                cmd: 'unalias ll',
+                expect: (out) => out.includes('Cannot unalias built-in'),
+                destructive: false
+            },
+            'alias-create-and-run': {
+                desc: 'create custom alias and execute it',
+                cmd_parts: [
+                    { cmd: 'alias greet=echo hello from alias' },
+                    { cmd: 'greet', expect: (out) => out.includes('hello from alias') },
+                    { cmd: 'unalias greet' },
+                ],
+                destructive: true
+            },
+            'alias-overwrite': {
+                desc: 'create, then overwrite, execute updated alias',
+                cmd_parts: [
+                    { cmd: 'alias greet2=echo first' },
+                    { cmd: 'alias greet2=echo second' },
+                    { cmd: 'greet2', expect: (out) => out.includes('second') },
+                    { cmd: 'unalias greet2' },
+                ],
+                destructive: true
+            },
+            'unalias-custom': {
+                desc: 'unalias removes a custom alias',
+                cmd_parts: [
+                    { cmd: 'alias tempcmd=echo temp' },
+                    { cmd: 'unalias tempcmd' },
+                    { cmd: 'alias tempcmd', expect: (out) => out.includes('not found') },
+                ],
+                destructive: true
+            },
+
             // ── Modules ──
             'commands-help': {
                 desc: 'help lists multiple command categories',