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S09.01-Exercise-ContentProviderFoundation
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Jeremy Silver
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Jan 19, 2017
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app/src/androidTest/java/com/example/android/sunshine/data/TestUriMatcher.java
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| /* | ||
| * Copyright (C) 2016 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 com.example.android.sunshine.data; | ||
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| import android.content.UriMatcher; | ||
| import android.net.Uri; | ||
| import android.support.test.runner.AndroidJUnit4; | ||
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| import org.junit.Before; | ||
| import org.junit.Test; | ||
| import org.junit.runner.RunWith; | ||
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| import java.lang.reflect.InvocationTargetException; | ||
| import java.lang.reflect.Method; | ||
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| import static com.example.android.sunshine.data.TestUtilities.getStaticIntegerField; | ||
| import static com.example.android.sunshine.data.TestUtilities.studentReadableNoSuchField; | ||
| import static junit.framework.Assert.assertEquals; | ||
| import static junit.framework.Assert.fail; | ||
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| @RunWith(AndroidJUnit4.class) | ||
| public class TestUriMatcher { | ||
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| private static final Uri TEST_WEATHER_DIR = WeatherContract.WeatherEntry.CONTENT_URI; | ||
| private static final Uri TEST_WEATHER_WITH_DATE_DIR = WeatherContract.WeatherEntry | ||
| .buildWeatherUriWithDate(TestUtilities.DATE_NORMALIZED); | ||
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| private static final String weatherCodeVariableName = "CODE_WEATHER"; | ||
| private static int REFLECTED_WEATHER_CODE; | ||
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| private static final String weatherCodeWithDateVariableName = "CODE_WEATHER_WITH_DATE"; | ||
| private static int REFLECTED_WEATHER_WITH_DATE_CODE; | ||
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| private UriMatcher testMatcher; | ||
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| @Before | ||
| public void before() { | ||
| try { | ||
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| Method buildUriMatcher = WeatherProvider.class.getDeclaredMethod("buildUriMatcher"); | ||
| testMatcher = (UriMatcher) buildUriMatcher.invoke(WeatherProvider.class); | ||
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| REFLECTED_WEATHER_CODE = getStaticIntegerField( | ||
| WeatherProvider.class, | ||
| weatherCodeVariableName); | ||
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| REFLECTED_WEATHER_WITH_DATE_CODE = getStaticIntegerField( | ||
| WeatherProvider.class, | ||
| weatherCodeWithDateVariableName); | ||
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| } catch (NoSuchFieldException e) { | ||
| fail(studentReadableNoSuchField(e)); | ||
| } catch (IllegalAccessException e) { | ||
| fail(e.getMessage()); | ||
| } catch (NoSuchMethodException e) { | ||
| String noBuildUriMatcherMethodFound = | ||
| "It doesn't appear that you have created a method called buildUriMatcher in " + | ||
| "the WeatherProvider class."; | ||
| fail(noBuildUriMatcherMethodFound); | ||
| } catch (InvocationTargetException e) { | ||
| fail(e.getMessage()); | ||
| } | ||
| } | ||
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| /** | ||
| * Students: This function tests that your UriMatcher returns the correct integer value for | ||
| * each of the Uri types that our ContentProvider can handle. Uncomment this when you are | ||
| * ready to test your UriMatcher. | ||
| */ | ||
| @Test | ||
| public void testUriMatcher() { | ||
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| /* Test that the code returned from our matcher matches the expected weather code */ | ||
| String weatherUriDoesNotMatch = "Error: The CODE_WEATHER URI was matched incorrectly."; | ||
| int actualWeatherCode = testMatcher.match(TEST_WEATHER_DIR); | ||
| int expectedWeatherCode = REFLECTED_WEATHER_CODE; | ||
| assertEquals(weatherUriDoesNotMatch, | ||
| expectedWeatherCode, | ||
| actualWeatherCode); | ||
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| /* | ||
| * Test that the code returned from our matcher matches the expected weather with date code | ||
| */ | ||
| String weatherWithDateUriCodeDoesNotMatch = | ||
| "Error: The CODE_WEATHER WITH DATE URI was matched incorrectly."; | ||
| int actualWeatherWithDateCode = testMatcher.match(TEST_WEATHER_WITH_DATE_DIR); | ||
| int expectedWeatherWithDateCode = REFLECTED_WEATHER_WITH_DATE_CODE; | ||
| assertEquals(weatherWithDateUriCodeDoesNotMatch, | ||
| expectedWeatherWithDateCode, | ||
| actualWeatherWithDateCode); | ||
| } | ||
| } |
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