1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * http://www.apache.org/licenses/LICENSE-2.0 7 * Unless required by applicable law or agreed to in writing, software 8 * distributed under the License is distributed on an "AS IS" BASIS, 9 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 10 * See the License for the specific language governing permissions and 11 * limitations under the License. 12 */ 13 14 package android.databinding.tool; 15 16 17 import org.junit.Before; 18 import org.junit.Test; 19 20 import android.databinding.tool.expr.Expr; 21 import android.databinding.tool.expr.ExprModel; 22 import android.databinding.tool.expr.FieldAccessExpr; 23 import android.databinding.tool.expr.IdentifierExpr; 24 import android.databinding.tool.expr.StaticIdentifierExpr; 25 import android.databinding.tool.reflection.Callable; 26 import android.databinding.tool.reflection.java.JavaClass; 27 28 import java.util.List; 29 import java.util.Map; 30 31 import static org.junit.Assert.assertEquals; 32 import static org.junit.Assert.assertFalse; 33 import static org.junit.Assert.assertSame; 34 import static org.junit.Assert.assertTrue; 35 36 public class LayoutBinderTest { 37 LayoutBinder mLayoutBinder; 38 ExprModel mExprModel; 39 @Before setUp()40 public void setUp() throws Exception { 41 mLayoutBinder = new MockLayoutBinder(); 42 mExprModel = mLayoutBinder.getModel(); 43 } 44 45 @Test testRegisterId()46 public void testRegisterId() { 47 int originalSize = mExprModel.size(); 48 mLayoutBinder.addVariable("test", "java.lang.String", null); 49 assertEquals(originalSize + 1, mExprModel.size()); 50 final Map.Entry<String, Expr> entry = findIdentifier("test"); 51 final Expr value = entry.getValue(); 52 assertEquals(value.getClass(), IdentifierExpr.class); 53 final IdentifierExpr id = (IdentifierExpr) value; 54 assertEquals("test", id.getName()); 55 assertEquals(new JavaClass(String.class), id.getResolvedType()); 56 assertTrue(id.isDynamic()); 57 } 58 59 @Test testRegisterImport()60 public void testRegisterImport() { 61 int originalSize = mExprModel.size(); 62 mExprModel.addImport("test", "java.lang.String", null); 63 assertEquals(originalSize + 1, mExprModel.size()); 64 final Map.Entry<String, Expr> entry = findIdentifier("test"); 65 final Expr value = entry.getValue(); 66 assertEquals(value.getClass(), StaticIdentifierExpr.class); 67 final IdentifierExpr id = (IdentifierExpr) value; 68 assertEquals("test", id.getName()); 69 assertEquals(new JavaClass(String.class), id.getResolvedType()); 70 assertFalse(id.isDynamic()); 71 } 72 73 @Test testParse()74 public void testParse() { 75 int originalSize = mExprModel.size(); 76 mLayoutBinder.addVariable("user", "android.databinding.tool2.LayoutBinderTest.TestUser", 77 null); 78 mLayoutBinder.parse("user.name", null); 79 mLayoutBinder.parse("user.lastName", null); 80 assertEquals(originalSize + 3, mExprModel.size()); 81 final List<Expr> bindingExprs = mExprModel.getBindingExpressions(); 82 assertEquals(2, bindingExprs.size()); 83 IdentifierExpr id = mExprModel.identifier("user"); 84 assertTrue(bindingExprs.get(0) instanceof FieldAccessExpr); 85 assertTrue(bindingExprs.get(1) instanceof FieldAccessExpr); 86 assertEquals(2, id.getParents().size()); 87 assertTrue(bindingExprs.get(0).getChildren().contains(id)); 88 assertTrue(bindingExprs.get(1).getChildren().contains(id)); 89 } 90 91 @Test testParseWithMethods()92 public void testParseWithMethods() { 93 mLayoutBinder.addVariable("user", "android.databinding.tool.LayoutBinderTest.TestUser", 94 null); 95 mLayoutBinder.parse("user.fullName", null); 96 Expr item = mExprModel.getBindingExpressions().get(0); 97 assertTrue(item instanceof FieldAccessExpr); 98 IdentifierExpr id = mExprModel.identifier("user"); 99 FieldAccessExpr fa = (FieldAccessExpr) item; 100 fa.getResolvedType(); 101 final Callable getter = fa.getGetter(); 102 assertTrue(getter.type == Callable.Type.METHOD); 103 assertSame(id, fa.getChild()); 104 assertTrue(fa.isDynamic()); 105 } 106 findIdentifier(String name)107 private Map.Entry<String, Expr> findIdentifier(String name) { 108 for (Map.Entry<String, Expr> entry : mExprModel.getExprMap().entrySet()) { 109 if (entry.getValue() instanceof IdentifierExpr) { 110 IdentifierExpr expr = (IdentifierExpr) entry.getValue(); 111 if (name.equals(expr.getName())) { 112 return entry; 113 } 114 } 115 } 116 return null; 117 } 118 119 static class TestUser { 120 public String name; 121 public String lastName; 122 fullName()123 public String fullName() { 124 return name + " " + lastName; 125 } 126 } 127 } 128