1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* Copyright (C) 2009 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.
*/
#include <memory>
#include <string>
#include <gtest/gtest.h>
#include "edify/expr.h"
static void expect(const std::string& expr_str, const char* expected) {
std::unique_ptr<Expr> e;
int error_count = 0;
EXPECT_EQ(0, ParseString(expr_str, &e, &error_count));
EXPECT_EQ(0, error_count);
State state(expr_str, nullptr);
std::string result;
bool status = Evaluate(&state, e, &result);
if (expected == nullptr) {
EXPECT_FALSE(status);
} else {
EXPECT_STREQ(expected, result.c_str());
}
}
class EdifyTest : public ::testing::Test {
protected:
void SetUp() {
RegisterBuiltins();
}
};
TEST_F(EdifyTest, parsing) {
expect("a", "a");
expect("\"a\"", "a");
expect("\"\\x61\"", "a");
expect("# this is a comment\n"
" a\n"
" \n",
"a");
}
TEST_F(EdifyTest, sequence) {
// sequence operator
expect("a; b; c", "c");
}
TEST_F(EdifyTest, concat) {
// string concat operator
expect("a + b", "ab");
expect("a + \n \"b\"", "ab");
expect("a + b +\nc\n", "abc");
// string concat function
expect("concat(a, b)", "ab");
expect("concat(a,\n \"b\")", "ab");
expect("concat(a + b,\nc,\"d\")", "abcd");
expect("\"concat\"(a + b,\nc,\"d\")", "abcd");
}
TEST_F(EdifyTest, logical) {
// logical and
expect("a && b", "b");
expect("a && \"\"", "");
expect("\"\" && b", "");
expect("\"\" && \"\"", "");
expect("\"\" && abort()", ""); // test short-circuiting
expect("t && abort()", nullptr);
// logical or
expect("a || b", "a");
expect("a || \"\"", "a");
expect("\"\" || b", "b");
expect("\"\" || \"\"", "");
expect("a || abort()", "a"); // test short-circuiting
expect("\"\" || abort()", NULL);
// logical not
expect("!a", "");
expect("! \"\"", "t");
expect("!!a", "t");
}
TEST_F(EdifyTest, precedence) {
// precedence
expect("\"\" == \"\" && b", "b");
expect("a + b == ab", "t");
expect("ab == a + b", "t");
expect("a + (b == ab)", "a");
expect("(ab == a) + b", "b");
}
TEST_F(EdifyTest, substring) {
// substring function
expect("is_substring(cad, abracadabra)", "t");
expect("is_substring(abrac, abracadabra)", "t");
expect("is_substring(dabra, abracadabra)", "t");
expect("is_substring(cad, abracxadabra)", "");
expect("is_substring(abrac, axbracadabra)", "");
expect("is_substring(dabra, abracadabrxa)", "");
}
TEST_F(EdifyTest, ifelse) {
// ifelse function
expect("ifelse(t, yes, no)", "yes");
expect("ifelse(!t, yes, no)", "no");
expect("ifelse(t, yes, abort())", "yes");
expect("ifelse(!t, abort(), no)", "no");
}
TEST_F(EdifyTest, if_statement) {
// if "statements"
expect("if t then yes else no endif", "yes");
expect("if \"\" then yes else no endif", "no");
expect("if \"\" then yes endif", "");
expect("if \"\"; t then yes endif", "yes");
}
TEST_F(EdifyTest, comparison) {
// numeric comparisons
expect("less_than_int(3, 14)", "t");
expect("less_than_int(14, 3)", "");
expect("less_than_int(x, 3)", "");
expect("less_than_int(3, x)", "");
expect("greater_than_int(3, 14)", "");
expect("greater_than_int(14, 3)", "t");
expect("greater_than_int(x, 3)", "");
expect("greater_than_int(3, x)", "");
}
TEST_F(EdifyTest, big_string) {
expect(std::string(8192, 's'), std::string(8192, 's').c_str());
}
TEST_F(EdifyTest, unknown_function) {
const char* script1 = "unknown_function()";
std::unique_ptr<Expr> expr;
int error_count = 0;
EXPECT_EQ(1, ParseString(script1, &expr, &error_count));
EXPECT_EQ(1, error_count);
const char* script2 = "abc; unknown_function()";
error_count = 0;
EXPECT_EQ(1, ParseString(script2, &expr, &error_count));
EXPECT_EQ(1, error_count);
const char* script3 = "unknown_function1() || yes";
error_count = 0;
EXPECT_EQ(1, ParseString(script3, &expr, &error_count));
EXPECT_EQ(1, error_count);
}
|
