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 * modification, are permitted provided that the following conditions are
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 *
 *    * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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package com.google.auth.oauth2;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Unit tests for AccessToken */
@RunWith(JUnit4.class)
public class AccessTokenTest extends BaseSerializationTest {

  private static final String TOKEN = "AccessToken";
  private static final Date EXPIRATION_DATE = new Date();
  private static final List<String> SCOPES = Arrays.asList("scope1", "scope2");
  private static final String SCOPES_STRING = "scope1 scope2";

  @Test
  public void constructor() {
    AccessToken accessToken = new AccessToken(TOKEN, EXPIRATION_DATE);
    assertEquals(TOKEN, accessToken.getTokenValue());
    assertEquals(EXPIRATION_DATE, accessToken.getExpirationTime());
    assertEquals(EXPIRATION_DATE.getTime(), (long) accessToken.getExpirationTimeMillis());
    assertEquals(new ArrayList<>(), accessToken.getScopes());
  }

  @Test
  public void builder() {
    AccessToken accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES_STRING)
            .build();
    assertEquals(TOKEN, accessToken.getTokenValue());
    assertEquals(EXPIRATION_DATE, accessToken.getExpirationTime());
    assertEquals(EXPIRATION_DATE.getTime(), (long) accessToken.getExpirationTimeMillis());
    assertEquals(SCOPES, accessToken.getScopes());
    assertNotSame(SCOPES, accessToken.getScopes());

    // scopes list
    accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();
    assertEquals(SCOPES, accessToken.getScopes());
    assertSame(SCOPES, accessToken.getScopes());

    // single scope
    accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes("dummy")
            .build();
    assertEquals(Arrays.asList("dummy"), accessToken.getScopes());

    // empty scope
    accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes("  ")
            .build();
    assertEquals(new ArrayList<>(), accessToken.getScopes());
  }

  @Test
  public void equals_true() throws IOException {
    AccessToken accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    AccessToken otherAccessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    assertTrue(accessToken.equals(otherAccessToken));
    assertTrue(otherAccessToken.equals(accessToken));
  }

  @Test
  public void equals_false_scopes() throws IOException {
    AccessToken accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    AccessToken otherAccessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(Arrays.asList("scope1"))
            .build();

    assertFalse(accessToken.equals(otherAccessToken));
    assertFalse(otherAccessToken.equals(accessToken));
  }

  @Test
  public void equals_false_token() throws IOException {
    AccessToken accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    AccessToken otherAccessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue("otherToken")
            .setScopes(SCOPES)
            .build();

    assertFalse(accessToken.equals(otherAccessToken));
    assertFalse(otherAccessToken.equals(accessToken));
  }

  @Test
  public void equals_false_expirationDate() throws IOException {
    AccessToken accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    AccessToken otherAccessToken =
        AccessToken.newBuilder()
            .setExpirationTime(new Date(EXPIRATION_DATE.getTime() + 42))
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    assertFalse(accessToken.equals(otherAccessToken));
    assertFalse(otherAccessToken.equals(accessToken));
  }

  @Test
  public void toString_containsFields() {
    AccessToken accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();
    String expectedToString =
        String.format(
            "AccessToken{tokenValue=%s, expirationTimeMillis=%d, scopes=%s}",
            TOKEN, EXPIRATION_DATE.getTime(), SCOPES);
    assertEquals(expectedToString, accessToken.toString());
  }

  @Test
  public void hashCode_equals() throws IOException {
    AccessToken accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    AccessToken otherAccessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    assertEquals(accessToken.hashCode(), otherAccessToken.hashCode());
  }

  @Test
  public void serialize() throws IOException, ClassNotFoundException {
    AccessToken emptyScopes =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes("")
            .build();

    AccessToken deserializedAccessToken = serializeAndDeserialize(emptyScopes);
    assertEquals(emptyScopes, deserializedAccessToken);
    assertEquals(emptyScopes.hashCode(), deserializedAccessToken.hashCode());
    assertEquals(emptyScopes.toString(), deserializedAccessToken.toString());
    assertEquals(new ArrayList<>(), deserializedAccessToken.getScopes());

    AccessToken accessToken =
        AccessToken.newBuilder()
            .setExpirationTime(EXPIRATION_DATE)
            .setTokenValue(TOKEN)
            .setScopes(SCOPES)
            .build();

    deserializedAccessToken = serializeAndDeserialize(accessToken);
    assertEquals(accessToken, deserializedAccessToken);
    assertEquals(accessToken.hashCode(), deserializedAccessToken.hashCode());
    assertEquals(accessToken.toString(), deserializedAccessToken.toString());
  }
}