Add shell emoji tests

shell/plugins/emojis/EmojiSearch.js

@@ -0,0 +1,46 @@
+function parseEmojis(raw) {
+  try {
+    var data = JSON.parse(String(raw || ""))
+    return Array.isArray(data) ? data : []
+  } catch (e) {
+    return []
+  }
+}
+
+function normalizedQuery(query) {
+  return String(query || "").trim().toLowerCase()
+}
+
+function keywordText(item) {
+  return String((item && item.k) || "").toLowerCase()
+}
+
+function filterEmojis(emojis, query, limit) {
+  var values = Array.isArray(emojis) ? emojis : []
+  var needle = normalizedQuery(query)
+  var max = limit === undefined || limit === null ? 1000 : Number(limit)
+  if (isNaN(max)) max = 1000
+  max = Math.max(0, max)
+  if (max === 0) return []
+
+  var out = []
+
+  for (var i = 0; i < values.length; i++) {
+    var item = values[i]
+    if (!item || !item.e) continue
+    if (!needle || keywordText(item).indexOf(needle) >= 0) {
+      out.push(item)
+      if (out.length >= max) break
+    }
+  }
+
+  return out
+}
+
+if (typeof module !== "undefined") {
+  module.exports = {
+    parseEmojis: parseEmojis,
+    normalizedQuery: normalizedQuery,
+    filterEmojis: filterEmojis
+  }
+}