add test to context

http/ctx/context_test.go

+package ctx
+
+import (
+	"net/http"
+	"reflect"
+	"testing"
+)
+
+func generateRequest(qs string) *http.Request {
+	r, err := http.NewRequest("GET", "?"+qs, nil)
+	if err != nil {
+		panic(err)
+	}
+	return r
+}
+
+func TestContext_QueryIntMultiple(t *testing.T) {
+	tests := []struct {
+		Request *http.Request
+		arg     string
+		want    []int
+	}{
+		{
+			Request: generateRequest("t=1"),
+			want:    []int{1},
+		},
+		{
+			Request: generateRequest("t=1&t=3"),
+			want:    []int{1, 3},
+		},
+		{
+			Request: generateRequest("t=3&t=1"),
+			want:    []int{3, 1},
+		},
+	}
+	for i, tt := range tests {
+		if tt.arg == "" {
+			tt.arg = "t"
+		}
+		r := &Context{
+			Request: tt.Request,
+		}
+		if got := r.QueryIntMultiple(tt.arg); !reflect.DeepEqual(got, tt.want) {
+			t.Errorf("%d. Context.QueryIntMultiple() = %v, want %v", i, got, tt.want)
+		}
+	}
+}