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;;; test-wttrin--replace-response-location.el --- Tests for wttrin--replace-response-location -*- lexical-binding: t; -*-
;; Copyright (C) 2025-2026 Craig Jennings
;;; Commentary:
;; Unit tests for wttrin--replace-response-location function.
;; Tests that the API's lowercase location prefix gets replaced with the
;; user's original casing while preserving the weather data.
;;; Code:
(require 'ert)
(require 'wttrin)
(require 'testutil-wttrin)
;;; Setup and Teardown
(defun test-wttrin--replace-response-location-setup ()
"Setup for replace-response-location tests."
(testutil-wttrin-setup))
(defun test-wttrin--replace-response-location-teardown ()
"Teardown for replace-response-location tests."
(testutil-wttrin-teardown))
;;; Normal Cases
(ert-deftest test-wttrin--replace-response-location-normal-replaces-lowercase ()
"API's lowercase location should be replaced with user's original casing."
(should (equal (wttrin--replace-response-location
"new orleans, la: ☀️ +72°F Clear"
"New Orleans, LA")
"New Orleans, LA: ☀️ +72°F Clear")))
(ert-deftest test-wttrin--replace-response-location-normal-preserves-weather-data ()
"Everything after the colon should be identical to the original response."
(let* ((response "berlin: 🌧 +48°F Light rain")
(result (wttrin--replace-response-location response "Berlin")))
;; Weather data portion should be untouched
(should (string-suffix-p ": 🌧 +48°F Light rain" result))))
;;; Boundary Cases
(ert-deftest test-wttrin--replace-response-location-boundary-already-correct ()
"When API casing already matches user's, the string should be unchanged."
(should (equal (wttrin--replace-response-location
"Paris: ☀️ +61°F Clear"
"Paris")
"Paris: ☀️ +61°F Clear")))
(ert-deftest test-wttrin--replace-response-location-boundary-unicode ()
"Unicode location should be preserved correctly in the replacement."
(should (equal (wttrin--replace-response-location
"são paulo: 🌤 +77°F Partly cloudy"
"São Paulo")
"São Paulo: 🌤 +77°F Partly cloudy")))
(ert-deftest test-wttrin--replace-response-location-boundary-no-colon ()
"Response with no colon should be returned unchanged."
(should (equal (wttrin--replace-response-location
"Unknown location"
"Paris")
"Unknown location")))
;;; Integration: fetch populates cache with corrected casing
(ert-deftest test-wttrin--mode-line-fetch-caches-user-location-casing ()
"After a successful fetch, the cached string should use the user's
location casing, not the API's lowercase version."
(test-wttrin--replace-response-location-setup)
(unwind-protect
(let ((wttrin-favorite-location "New Orleans, LA")
(wttrin--mode-line-cache nil))
(testutil-wttrin-mock-http-response
"new orleans, la: ☀️ +72°F Clear"
(wttrin--mode-line-fetch-weather)
(should wttrin--mode-line-cache)
(let ((cached-string (cdr wttrin--mode-line-cache)))
(should (string-prefix-p "New Orleans, LA:" cached-string)))))
(test-wttrin--replace-response-location-teardown)))
(provide 'test-wttrin--replace-response-location)
;;; test-wttrin--replace-response-location.el ends here
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