Initial commit: Rust calendar utility

plugins/holiday_highlighter/tests/integration_tests.rs

@@ -0,0 +1,56 @@
+//! Integration tests for holiday_highlighter plugin.
+
+use holiday_highlighter::{
+    PLUGIN_NAME, PLUGIN_VERSION, get_country_from_locale, plugin_get_name, plugin_get_version,
+};
+use std::ffi::CStr;
+
+#[test]
+fn test_get_country_from_locale_ru() {
+    unsafe {
+        std::env::set_var("LC_ALL", "ru_RU.UTF-8");
+    }
+    assert_eq!(get_country_from_locale(), "RU");
+}
+
+#[test]
+fn test_get_country_from_locale_us() {
+    unsafe {
+        std::env::set_var("LC_ALL", "en_US.UTF-8");
+    }
+    assert_eq!(get_country_from_locale(), "US");
+}
+
+#[test]
+fn test_get_country_from_locale_by() {
+    unsafe {
+        std::env::set_var("LC_ALL", "be_BY.UTF-8");
+    }
+    assert_eq!(get_country_from_locale(), "BY");
+}
+
+#[test]
+fn test_get_country_from_locale_fallback() {
+    unsafe {
+        std::env::set_var("LC_ALL", "");
+        std::env::set_var("LC_TIME", "");
+        std::env::set_var("LANG", "");
+    }
+    assert_eq!(get_country_from_locale(), "RU");
+}
+
+#[test]
+fn test_plugin_metadata_from_cargo() {
+    assert_eq!(PLUGIN_NAME, "holiday_highlighter");
+    assert_eq!(PLUGIN_VERSION, "0.1.0");
+}
+
+#[test]
+fn test_plugin_get_name_version() {
+    unsafe {
+        let name = CStr::from_ptr(plugin_get_name()).to_str().unwrap();
+        let version = CStr::from_ptr(plugin_get_version()).to_str().unwrap();
+        assert_eq!(name, "holiday_highlighter");
+        assert_eq!(version, "0.1.0");
+    }
+}