xref: /external/robolectric/src/test/java/com/xtremelabs/robolectric/shadows/TextUtilsTest.java

package com.xtremelabs.robolectric.shadows;

import android.text.TextUtils;
import com.xtremelabs.robolectric.WithTestDefaultsRunner;
import java.util.Arrays;

import org.junit.Test;
import org.junit.runner.RunWith;

import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;

@RunWith(WithTestDefaultsRunner.class)
public class TextUtilsTest {
    @Test
    public void testExpandTemplate() throws Exception {
        assertThat(
                (String) TextUtils.expandTemplate("a^1b^2c^3d", "A", "B", "C", "D"),
                equalTo("aAbBcCd"));
    }

    @Test
    public void testIsEmpty() throws Exception {
        assertThat(TextUtils.isEmpty(null), equalTo(true));
        assertThat(TextUtils.isEmpty(""), equalTo(true));
        assertThat(TextUtils.isEmpty(" "), equalTo(false));
        assertThat(TextUtils.isEmpty("123"), equalTo(false));
    }

    @Test public void testJoin() {
      assertThat(TextUtils.join(",", new String[] { "1" }), equalTo("1"));
      assertThat(TextUtils.join(",", new String[] { "1", "2", "3" }), equalTo("1,2,3"));
      assertThat(TextUtils.join(",", Arrays.asList("1", "2", "3")), equalTo("1,2,3"));
    }

    @Test
    public void testIsDigitsOnly() throws Exception {
        assertThat(TextUtils.isDigitsOnly("123456"), equalTo(true));
        assertThat(TextUtils.isDigitsOnly("124a56"), equalTo(false));
    }

    @Test
    public void testGetTrimmedLength() {
        assertThat(TextUtils.getTrimmedLength("123456"), equalTo(6));
        assertThat(TextUtils.getTrimmedLength(" \n \t 123456"), equalTo(6));
        assertThat(TextUtils.getTrimmedLength("123456  \n \t "), equalTo(6));
        assertThat(TextUtils.getTrimmedLength(" \n \t  123456  \n \t "), equalTo(6));
        assertThat(TextUtils.getTrimmedLength(" \n \t  \n \t "), equalTo(0));
    }

    @Test
    public void testSplit() {
    	//empty
    	assertThat(TextUtils.split("", ",").length, equalTo(0));

    	//one value
    	assertArrayEquals(TextUtils.split("abc", ","), new String[]{"abc"});

    	//two values
    	assertArrayEquals(TextUtils.split("abc,def", ","), new String[]{"abc", "def"});

    	//two values with space
    	assertArrayEquals(TextUtils.split("abc, def", ","), new String[]{"abc", " def"});
   }
}