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
|
// Copyright 2011 Google Inc. All Rights Reserved.
//
// 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 <gtest/gtest.h>
#include <map>
#include <string>
#include "eval_env.h"
namespace {
struct TestEnv : public Env {
virtual string LookupVariable(const string& var) {
return vars[var];
}
map<string, string> vars;
};
TEST(EvalString, PlainText) {
EvalString str;
string err;
EXPECT_TRUE(str.Parse("plain text", &err));
EXPECT_EQ("", err);
EXPECT_EQ("plain text", str.Evaluate(NULL));
}
TEST(EvalString, OneVariable) {
EvalString str;
string err;
EXPECT_TRUE(str.Parse("hi $var", &err));
EXPECT_EQ("", err);
EXPECT_EQ("hi $var", str.unparsed());
TestEnv env;
EXPECT_EQ("hi ", str.Evaluate(&env));
env.vars["var"] = "there";
EXPECT_EQ("hi there", str.Evaluate(&env));
}
TEST(EvalString, OneVariableUpperCase) {
EvalString str;
string err;
EXPECT_TRUE(str.Parse("hi $VaR", &err));
EXPECT_EQ("", err);
EXPECT_EQ("hi $VaR", str.unparsed());
TestEnv env;
EXPECT_EQ("hi ", str.Evaluate(&env));
env.vars["VaR"] = "there";
EXPECT_EQ("hi there", str.Evaluate(&env));
}
TEST(EvalString, Error) {
EvalString str;
string err;
size_t err_index;
EXPECT_FALSE(str.Parse("bad $", &err, &err_index));
EXPECT_EQ("expected variable after $", err);
EXPECT_EQ(5u, err_index);
}
TEST(EvalString, CurlyError) {
EvalString str;
string err;
size_t err_index;
EXPECT_FALSE(str.Parse("bad ${bar", &err, &err_index));
EXPECT_EQ("expected closing curly after ${", err);
EXPECT_EQ(9u, err_index);
}
TEST(EvalString, Curlies) {
EvalString str;
string err;
EXPECT_TRUE(str.Parse("foo ${var}baz", &err));
EXPECT_EQ("", err);
TestEnv env;
EXPECT_EQ("foo baz", str.Evaluate(&env));
env.vars["var"] = "barbar";
EXPECT_EQ("foo barbarbaz", str.Evaluate(&env));
}
TEST(EvalString, Dollars) {
EvalString str;
string err;
EXPECT_TRUE(str.Parse("foo$$bar$bar", &err));
ASSERT_EQ("", err);
TestEnv env;
env.vars["bar"] = "baz";
EXPECT_EQ("foo$barbaz", str.Evaluate(&env));
}
} // namespace
|
