Rename main test file to test_plugin.zunit

tests/test_plugin.zunit

@@ -0,0 +1,28 @@
+#!/usr/bin/env zunit
+
+@setup {
+    load "../auto-notify.plugin.zsh"
+}
+
+@test 'version exported' {
+    git_version="$(git tag --list | sort -V | tail -1)"
+    git tag --list
+
+    assert "$AUTO_NOTIFY_VERSION" is_not_empty
+    assert "$AUTO_NOTIFY_VERSION" same_as "$git_version"
+}
+
+@test 'hook functions are loaded by default' {
+    assert '_auto_notify_track' in $preexec_functions
+    assert '_auto_notify_send' in $precmd_functions
+}
+
+@test 'enable/disable auto-notify' {
+    disable_auto_notify
+    assert '_auto_notify_track' not_in $preexec_functions
+    assert '_auto_notify_send' not_in $precmd_functions
+
+    enable_auto_notify
+    assert '_auto_notify_track' in $preexec_functions
+    assert '_auto_notify_send' in $precmd_functions
+}