1 /* 2 * Copyright 2016 Google Inc. All Rights Reserved. 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.google.turbine.parse; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import com.google.common.base.Joiner; 22 import com.google.turbine.diag.SourceFile; 23 import java.util.Arrays; 24 import java.util.List; 25 import org.junit.Test; 26 import org.junit.runner.RunWith; 27 import org.junit.runners.Parameterized; 28 import org.junit.runners.Parameterized.Parameters; 29 30 @RunWith(Parameterized.class) 31 public class VariableInitializerTest { 32 33 @Parameters parameters()34 public static Iterable<Object[]> parameters() { 35 return Arrays.asList( 36 new Object[][] { 37 { 38 "a = List<A, B<C, D>, G>::asd, b = 2;", 39 "[IDENT(a), ASSIGN, IDENT(List), COLONCOLON, IDENT(asd), EOF]," 40 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 41 }, 42 { 43 "a = new List<A, B<C, D>, G>(), b = 2;", 44 "[IDENT(a), ASSIGN, NEW, IDENT(List), LPAREN, RPAREN, EOF]," 45 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 46 }, 47 { 48 "a = x < y, b = y > x;", 49 "[IDENT(a), ASSIGN, IDENT(x), LT, IDENT(y), EOF]," 50 + " [IDENT(b), ASSIGN, IDENT(y), GT, IDENT(x), EOF]", 51 }, 52 { 53 "a = List<A, Q<B<C, D<E, F>>>, G>::asd, b = 2;", 54 "[IDENT(a), ASSIGN, IDENT(List), COLONCOLON, IDENT(asd), EOF]," 55 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]" 56 }, 57 { 58 "a = 1, b[], c = 2, d[] = 3, f", 59 "[IDENT(a), ASSIGN, INT_LITERAL(1), EOF]," 60 + " [IDENT(b), LBRACK, RBRACK, EOF]," 61 + " [IDENT(c), ASSIGN, INT_LITERAL(2), EOF]," 62 + " [IDENT(d), LBRACK, RBRACK, ASSIGN, INT_LITERAL(3), EOF]," 63 + " [IDENT(f), EOF]" 64 }, 65 { 66 "a = (x) -> {{return asd<asd>::asd;}}, b = 2;", 67 "[IDENT(a), ASSIGN, LPAREN, IDENT(x), RPAREN, ARROW, LBRACE, LBRACE, RETURN," 68 + " IDENT(asd), LT, IDENT(asd)," 69 + " GT, COLONCOLON, IDENT(asd), SEMI, RBRACE, RBRACE, EOF]," 70 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 71 }, 72 { 73 "a = List<A, B<C, D>>::asd, b = 2;", 74 "[IDENT(a), ASSIGN, IDENT(List), COLONCOLON, IDENT(asd), EOF]," 75 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 76 }, 77 { 78 "a = ((int) 1) + 2, b = 2;", 79 "[IDENT(a), ASSIGN, LPAREN, LPAREN, INT, RPAREN, INT_LITERAL(1), RPAREN, PLUS," 80 + " INT_LITERAL(2), EOF]," 81 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 82 }, 83 { 84 "a = ImmutableList.<List<String>>of(), b = 2;", 85 "[IDENT(a), ASSIGN, IDENT(ImmutableList), DOT, IDENT(of), LPAREN, RPAREN, EOF]," 86 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 87 }, 88 { 89 "a = new <X,Y> F<U,V>.G<M,N<X<?>>>(), b = 2;", 90 "[IDENT(a), ASSIGN, NEW, IDENT(F), IDENT(G), LPAREN, RPAREN, EOF]," 91 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 92 }, 93 { 94 "a = new <X,Y> F<U,V>.G<M,N<X<?>>>(), b = 2;", 95 "[IDENT(a), ASSIGN, NEW, IDENT(F), IDENT(G), LPAREN, RPAREN, EOF]," 96 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 97 }, 98 { 99 "a = Foo::new<X>, b = 2;", 100 "[IDENT(a), ASSIGN, IDENT(Foo), COLONCOLON, LT, IDENT(X), GT, EOF]," 101 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 102 }, 103 { 104 "a = (x) -> { return (int) null; }, b = 2;", 105 "[IDENT(a), ASSIGN, LPAREN, IDENT(x), RPAREN, ARROW, LBRACE, RETURN, LPAREN, INT," 106 + " RPAREN, NULL, SEMI, RBRACE, EOF]," 107 + " [IDENT(b), ASSIGN, INT_LITERAL(2), EOF]", 108 }, 109 { 110 "a = a<b, c = c<d, e, f>::new;", 111 "[IDENT(a), ASSIGN, IDENT(a), LT, IDENT(b), EOF]," 112 + " [IDENT(c), ASSIGN, IDENT(c), COLONCOLON, EOF]", 113 }, 114 { 115 "a = a < b ? x -> g(ArrayList<String>::new) : null, c = c<d, e, f>::new;", 116 "[IDENT(a), ASSIGN, IDENT(a), LT, IDENT(b), COND, IDENT(x), ARROW, IDENT(g), LPAREN," 117 + " IDENT(ArrayList), LT, IDENT(String), GT, COLONCOLON, NEW, RPAREN, COLON, NULL," 118 + " EOF]," 119 + " [IDENT(c), ASSIGN, IDENT(c), COLONCOLON, EOF]", 120 }, 121 }); 122 } 123 124 final String input; 125 final String expected; 126 VariableInitializerTest(String input, String expected)127 public VariableInitializerTest(String input, String expected) { 128 this.input = input; 129 this.expected = expected; 130 } 131 132 @Test test()133 public void test() { 134 Lexer lexer = new StreamLexer(new UnicodeEscapePreprocessor(new SourceFile(null, input))); 135 List<List<SavedToken>> initializers = 136 new VariableInitializerParser(lexer.next(), lexer).parseInitializers(); 137 assertThat(Joiner.on(", ").join(initializers)).isEqualTo(expected); 138 } 139 } 140