1 /* 2 * Copyright (C) 2009 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 #include <memory> 18 #include <string> 19 20 #include <gtest/gtest.h> 21 22 #include "edify/expr.h" 23 24 static void expect(const char* expr_str, const char* expected) { 25 std::unique_ptr<Expr> e; 26 int error_count = 0; 27 EXPECT_EQ(0, parse_string(expr_str, &e, &error_count)); 28 EXPECT_EQ(0, error_count); 29 30 State state(expr_str, nullptr); 31 32 std::string result; 33 bool status = Evaluate(&state, e, &result); 34 35 if (expected == nullptr) { 36 EXPECT_FALSE(status); 37 } else { 38 EXPECT_STREQ(expected, result.c_str()); 39 } 40 41 } 42 43 class EdifyTest : public ::testing::Test { 44 protected: 45 virtual void SetUp() { 46 RegisterBuiltins(); 47 } 48 }; 49 50 TEST_F(EdifyTest, parsing) { 51 expect("a", "a"); 52 expect("\"a\"", "a"); 53 expect("\"\\x61\"", "a"); 54 expect("# this is a comment\n" 55 " a\n" 56 " \n", 57 "a"); 58 } 59 60 TEST_F(EdifyTest, sequence) { 61 // sequence operator 62 expect("a; b; c", "c"); 63 } 64 65 TEST_F(EdifyTest, concat) { 66 // string concat operator 67 expect("a + b", "ab"); 68 expect("a + \n \"b\"", "ab"); 69 expect("a + b +\nc\n", "abc"); 70 71 // string concat function 72 expect("concat(a, b)", "ab"); 73 expect("concat(a,\n \"b\")", "ab"); 74 expect("concat(a + b,\nc,\"d\")", "abcd"); 75 expect("\"concat\"(a + b,\nc,\"d\")", "abcd"); 76 } 77 78 TEST_F(EdifyTest, logical) { 79 // logical and 80 expect("a && b", "b"); 81 expect("a && \"\"", ""); 82 expect("\"\" && b", ""); 83 expect("\"\" && \"\"", ""); 84 expect("\"\" && abort()", ""); // test short-circuiting 85 expect("t && abort()", nullptr); 86 87 // logical or 88 expect("a || b", "a"); 89 expect("a || \"\"", "a"); 90 expect("\"\" || b", "b"); 91 expect("\"\" || \"\"", ""); 92 expect("a || abort()", "a"); // test short-circuiting 93 expect("\"\" || abort()", NULL); 94 95 // logical not 96 expect("!a", ""); 97 expect("! \"\"", "t"); 98 expect("!!a", "t"); 99 } 100 101 TEST_F(EdifyTest, precedence) { 102 // precedence 103 expect("\"\" == \"\" && b", "b"); 104 expect("a + b == ab", "t"); 105 expect("ab == a + b", "t"); 106 expect("a + (b == ab)", "a"); 107 expect("(ab == a) + b", "b"); 108 } 109 110 TEST_F(EdifyTest, substring) { 111 // substring function 112 expect("is_substring(cad, abracadabra)", "t"); 113 expect("is_substring(abrac, abracadabra)", "t"); 114 expect("is_substring(dabra, abracadabra)", "t"); 115 expect("is_substring(cad, abracxadabra)", ""); 116 expect("is_substring(abrac, axbracadabra)", ""); 117 expect("is_substring(dabra, abracadabrxa)", ""); 118 } 119 120 TEST_F(EdifyTest, ifelse) { 121 // ifelse function 122 expect("ifelse(t, yes, no)", "yes"); 123 expect("ifelse(!t, yes, no)", "no"); 124 expect("ifelse(t, yes, abort())", "yes"); 125 expect("ifelse(!t, abort(), no)", "no"); 126 } 127 128 TEST_F(EdifyTest, if_statement) { 129 // if "statements" 130 expect("if t then yes else no endif", "yes"); 131 expect("if \"\" then yes else no endif", "no"); 132 expect("if \"\" then yes endif", ""); 133 expect("if \"\"; t then yes endif", "yes"); 134 } 135 136 TEST_F(EdifyTest, comparison) { 137 // numeric comparisons 138 expect("less_than_int(3, 14)", "t"); 139 expect("less_than_int(14, 3)", ""); 140 expect("less_than_int(x, 3)", ""); 141 expect("less_than_int(3, x)", ""); 142 expect("greater_than_int(3, 14)", ""); 143 expect("greater_than_int(14, 3)", "t"); 144 expect("greater_than_int(x, 3)", ""); 145 expect("greater_than_int(3, x)", ""); 146 } 147 148 TEST_F(EdifyTest, big_string) { 149 // big string 150 expect(std::string(8192, 's').c_str(), std::string(8192, 's').c_str()); 151 } 152 153 TEST_F(EdifyTest, unknown_function) { 154 // unknown function 155 const char* script1 = "unknown_function()"; 156 std::unique_ptr<Expr> expr; 157 int error_count = 0; 158 EXPECT_EQ(1, parse_string(script1, &expr, &error_count)); 159 EXPECT_EQ(1, error_count); 160 161 const char* script2 = "abc; unknown_function()"; 162 error_count = 0; 163 EXPECT_EQ(1, parse_string(script2, &expr, &error_count)); 164 EXPECT_EQ(1, error_count); 165 166 const char* script3 = "unknown_function1() || yes"; 167 error_count = 0; 168 EXPECT_EQ(1, parse_string(script3, &expr, &error_count)); 169 EXPECT_EQ(1, error_count); 170 } 171
