mirror of https://github.com/gdamore/tcell.git
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
// Copyright 2018 The TCell Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use file except in compliance with the License.
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// You may obtain a copy of the license at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tcell
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import (
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"testing"
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)
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func TestCanDisplayUTF8(t *testing.T) {
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s := mkTestScreen(t, "UTF-8")
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defer s.Fini()
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if s.CharacterSet() != "UTF-8" {
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t.Errorf("Bad charset: %v", s.CharacterSet())
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}
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if !s.CanDisplay('a', true) {
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t.Errorf("Should be able to display 'a'")
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}
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if !s.CanDisplay(RuneHLine, true) {
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t.Errorf("Should be able to display hline (with fallback)")
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}
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if !s.CanDisplay(RuneHLine, false) {
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t.Errorf("Should be able to display hline (no fallback)")
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}
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if !s.CanDisplay('⌀', false) {
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t.Errorf("Should be able to display null")
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}
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}
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func TestCanDisplayASCII(t *testing.T) {
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s := mkTestScreen(t, "US-ASCII")
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defer s.Fini()
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if s.CharacterSet() != "US-ASCII" {
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t.Errorf("Wrong character set: %v", s.CharacterSet())
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}
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if !s.CanDisplay('a', true) {
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t.Errorf("Should be able to display 'a'")
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}
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if !s.CanDisplay(RuneHLine, true) {
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t.Errorf("Should be able to display hline (with fallback)")
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}
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if s.CanDisplay(RunePi, false) {
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t.Errorf("Should not be able to display Pi (no fallback)")
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}
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if s.CanDisplay('⌀', false) {
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t.Errorf("Should not be able to display null")
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}
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}
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func TestRuneFallbacks(t *testing.T) {
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s := mkTestScreen(t, "US-ASCII")
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defer s.Fini()
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if s.CharacterSet() != "US-ASCII" {
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t.Errorf("Wrong character set: %v", s.CharacterSet())
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}
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// Test registering a fallback
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s.RegisterRuneFallback('⌀', "o")
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if s.CanDisplay('⌀', false) {
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t.Errorf("Should not be able to display null (no fallback)")
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}
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if !s.CanDisplay('⌀', true) {
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t.Errorf("Should be able to display null (with fallback)")
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}
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// Test unregistering custom fallback
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s.UnregisterRuneFallback('⌀')
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if s.CanDisplay('⌀', false) {
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t.Errorf("Should not be able to display null (no fallback)")
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}
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if s.CanDisplay('⌀', true) {
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t.Errorf("Should not be able to display null (with fallback)")
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}
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// Test unregistering builtin fallback
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if !s.CanDisplay(RuneHLine, true) {
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t.Errorf("Should be able to display hline")
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}
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s.UnregisterRuneFallback(RuneHLine)
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if s.CanDisplay(RuneHLine, true) {
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t.Errorf("Should not be able to display hline")
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}
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}
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