package org.robolectric.shadows;


import android.annotation.TargetApi;
import android.content.Context;
import android.os.Build;
import android.text.Html;
import android.text.Spanned;
import android.widget.EditText;
import android.widget.TextView;
import org.codehaus.plexus.util.StringUtils;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RuntimeEnvironment;
import org.robolectric.TestRunners;
import org.robolectric.annotation.Config;

import static android.os.Build.VERSION_CODES.M;
import static android.os.Build.VERSION_CODES.N;
import static org.assertj.core.api.Assertions.assertThat;

@RunWith(TestRunners.MultiApiSelfTest.class)
public class ShadowHtmlTest {
  private static final String HTML_SHORT = "<img src='foo.png'>";
  private static final String HTML_LONG = String.format("<img src='%s.png'>", StringUtils.repeat("foo", 100));

  private Context context;

  @Before
  public void setUp() throws Exception {
    context = RuntimeEnvironment.application;
  }

  @Test
  public void shouldBeAbleToGetTextFromTextViewAfterUsingSetTextWithHtmlDotFromHtml() throws Exception {
    TextView textView = new TextView(context);
    textView.setText(Html.fromHtml("<b>some</b> html text"));
    assertThat(textView.getText().toString()).isEqualTo("some html text");
  }

  @Test
  public void shouldBeAbleToGetTextFromEditTextAfterUsingSetTextWithHtmlDotFromHtml() throws Exception {
    EditText editText = new EditText(context);
    editText.setText(Html.fromHtml("<b>some</b> html text"));
    assertThat(editText.getText().toString()).isEqualTo("some html text");
  }

  @Test(expected = NullPointerException.class)
  public void shouldThrowNullPointerExceptionWhenNullStringEncountered() throws Exception {
    Html.fromHtml(null);
  }

  @Test
  public void fromHtml_shouldJustReturnArgByDefault() {
    String text = "<b>foo</b>";
    Spanned spanned = Html.fromHtml(text);
    assertThat(spanned.toString()).isEqualTo("foo");
  }

  @Config(maxSdk = M)
  @Test public void testArraycopyLegacyShort() {
    //noinspection deprecation
    Html.fromHtml(HTML_SHORT, null, null);
  }

  @Config(maxSdk = M)
  @Test public void testArraycopyLegacyLong() {
    //noinspection deprecation
    Html.fromHtml(HTML_LONG, null, null);
  }

  @TargetApi(N) @Config(minSdk = N)
  @Test public void testArraycopyShort() {
    Html.fromHtml(HTML_SHORT, Html.FROM_HTML_MODE_LEGACY, null, null);
  }

  /**
   * this test requires that {@link org.ccil.cowan.tagsoup.HTMLScanner} be instrumented.
   */
  @TargetApi(N) @Config(minSdk = N)
  @Test public void testArraycopyLong() {
    Html.fromHtml(HTML_LONG, Html.FROM_HTML_MODE_LEGACY, null, null);
  }

}