TextViewTest.kt

/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.core.widget

import android.support.test.InstrumentationRegistry
import android.widget.TextView
import org.junit.Assert.assertEquals
import org.junit.Test

class TextViewTest {
    private val context = InstrumentationRegistry.getContext()
    private val textView = TextView(context)

    @Test
    fun validateTest() {
        textView.setText("1234")
        textView.validate {
            if (it.length > 2) {
                "length>2"
            } else {
                null
            }
        }
        assertEquals(textView.error, "length>2")
        textView.setText("1")
        textView.validate {
            if (it.length > 2) {
                "length>2"
            } else {
                null
            }
        }
        assertEquals(textView.error, null)
    }
}