diff --git a/cmd/mstdn/cmd_xsearch_test.go b/cmd/mstdn/cmd_xsearch_test.go
new file mode 100644
index 0000000..1c91aca
--- /dev/null
+++ b/cmd/mstdn/cmd_xsearch_test.go
@@ -0,0 +1,60 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func TestXSearch(t *testing.T) {
+	canErr := true
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if canErr {
+			canErr = false
+			http.Error(w, http.StatusText(http.StatusInternalServerError), 9999)
+			return
+		} else if r.URL.Query().Get("q") == "empty" {
+			fmt.Fprintln(w, `<div class="post"><div class="mst_content"><a><p>test status</p></a></div></div>`)
+			return
+		}
+
+		fmt.Fprintln(w, `<div class="post"><div class="mst_content"><a href="http://example.com/@test/1"><p>test status</p></a></div></div>`)
+	}))
+	defer ts.Close()
+
+	err := xSearch(":", "", nil)
+	if err == nil {
+		t.Fatalf("should be fail: %v", err)
+	}
+
+	err = xSearch(ts.URL, "", nil)
+	if err == nil {
+		t.Fatalf("should be fail: %v", err)
+	}
+
+	buf := bytes.NewBuffer(nil)
+	err = xSearch(ts.URL, "empty", buf)
+	if err != nil {
+		t.Fatalf("should not be fail: %v", err)
+	}
+	result := buf.String()
+	if result != "" {
+		t.Fatalf("the search result should be empty: %s", result)
+	}
+
+	buf = bytes.NewBuffer(nil)
+	err = xSearch(ts.URL, "test", buf)
+	if err != nil {
+		t.Fatalf("should not be fail: %v", err)
+	}
+	result = buf.String()
+	if !strings.Contains(result, "http://example.com/@test/1") {
+		t.Fatalf("%q should be contained in output of search: %s", "http://example.com/@test/1", result)
+	}
+	if !strings.Contains(result, "test status") {
+		t.Fatalf("%q should be contained in output of search: %s", "test status", result)
+	}
+}