imapclient: add basic ESEARCH test

Author: emersion

imapclient/search_test.go

@@ -0,0 +1,34 @@
+package imapclient_test
+
+import (
+	"testing"
+
+	"github.com/emersion/go-imap/v2"
+)
+
+func TestESearch(t *testing.T) {
+	client, server := newClientServerPair(t, imap.ConnStateSelected)
+	defer client.Close()
+	defer server.Close()
+
+	if !client.Caps().Has(imap.CapESearch) {
+		t.Skip("server doesn't support ESEARCH")
+	}
+
+	criteria := imap.SearchCriteria{
+		Header: []imap.SearchCriteriaHeaderField{{
+			Key:   "Message-Id",
+			Value: "<[email protected]>",
+		}},
+	}
+	options := imap.SearchOptions{
+		ReturnCount: true,
+	}
+	data, err := client.Search(&criteria, &options).Wait()
+	if err != nil {
+		t.Fatalf("Search().Wait() = %v", err)
+	}
+	if want := uint32(1); data.Count != want {
+		t.Errorf("Count = %v, want %v", data.Count, want)
+	}
+}