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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package com.android.providers.contacts.util;
     18 
     19 import android.test.AndroidTestCase;
     20 import android.test.suitebuilder.annotation.SmallTest;
     21 
     22 /**
     23  * Unit tests for {@link SelectionBuilder}.
     24  */
     25 @SmallTest
     26 public class SelectionBuilderTest extends AndroidTestCase {
     27     public void testEmptyClauses() {
     28         assertEquals(null, new SelectionBuilder(null).build());
     29         assertEquals(null, new SelectionBuilder("").build());
     30         assertEquals(null, new SelectionBuilder("").addClause(null).build());
     31         assertEquals(null, new SelectionBuilder(null).addClause("").build());
     32         assertEquals(null, new SelectionBuilder(null).addClause("").addClause(null).build());
     33     }
     34 
     35     public void testNonEmptyClauses() {
     36         assertEquals("(A)", new SelectionBuilder("A").build());
     37         assertEquals("(A) AND (B=bar) AND (C='1')", new SelectionBuilder("A")
     38                 .addClause("B=bar")
     39                 .addClause("C='1'")
     40                 .build());
     41 
     42         // Skips null and empty clauses.
     43         assertEquals("(A) AND (B) AND (C)", new SelectionBuilder("A")
     44                 .addClause("")
     45                 .addClause("B")
     46                 .addClause(null)
     47                 .addClause("C")
     48                 .addClause(null)
     49                 .build());
     50 
     51         // Use base selection with constructor.
     52         assertEquals("(A)", new SelectionBuilder(null).addClause("A").build());
     53         assertEquals("(A)", new SelectionBuilder("").addClause("A").build());
     54         assertEquals("(A) AND (B)", new SelectionBuilder("A").addClause("B").build());
     55     }
     56 }
     57