24 static void expect(const std::string& expr_str, const char* expected) {  in expect()  function
50     expect("a", "a");  in TEST_F()
51     expect("\"a\"", "a");  in TEST_F()
52     expect("\"\\x61\"", "a");  in TEST_F()
53     expect("# this is a comment\n"  in TEST_F()
61     expect("a; b; c", "c");  in TEST_F()
66     expect("a + b", "ab");  in TEST_F()
67     expect("a + \n \"b\"", "ab");  in TEST_F()
68     expect("a + b +\nc\n", "abc");  in TEST_F()
71     expect("concat(a, b)", "ab");  in TEST_F()
72     expect("concat(a,\n \"b\")", "ab");  in TEST_F()
73     expect("concat(a + b,\nc,\"d\")", "abcd");  in TEST_F()
74     expect("\"concat\"(a + b,\nc,\"d\")", "abcd");  in TEST_F()
79     expect("a && b", "b");  in TEST_F()
80     expect("a && \"\"", "");  in TEST_F()
81     expect("\"\" && b", "");  in TEST_F()
82     expect("\"\" && \"\"", "");  in TEST_F()
83     expect("\"\" && abort()", "");   // test short-circuiting  in TEST_F()
84     expect("t && abort()", nullptr);  in TEST_F()
87     expect("a || b", "a");  in TEST_F()
88     expect("a || \"\"", "a");  in TEST_F()
89     expect("\"\" || b", "b");  in TEST_F()
90     expect("\"\" || \"\"", "");  in TEST_F()
91     expect("a || abort()", "a");     // test short-circuiting  in TEST_F()
92     expect("\"\" || abort()", NULL);  in TEST_F()
95     expect("!a", "");  in TEST_F()
96     expect("! \"\"", "t");  in TEST_F()
97     expect("!!a", "t");  in TEST_F()
102     expect("\"\" == \"\" && b", "b");  in TEST_F()
103     expect("a + b == ab", "t");  in TEST_F()
104     expect("ab == a + b", "t");  in TEST_F()
105     expect("a + (b == ab)", "a");  in TEST_F()
106     expect("(ab == a) + b", "b");  in TEST_F()
111     expect("is_substring(cad, abracadabra)", "t");  in TEST_F()
112     expect("is_substring(abrac, abracadabra)", "t");  in TEST_F()
113     expect("is_substring(dabra, abracadabra)", "t");  in TEST_F()
114     expect("is_substring(cad, abracxadabra)", "");  in TEST_F()
115     expect("is_substring(abrac, axbracadabra)", "");  in TEST_F()
116     expect("is_substring(dabra, abracadabrxa)", "");  in TEST_F()
121     expect("ifelse(t, yes, no)", "yes");  in TEST_F()
122     expect("ifelse(!t, yes, no)", "no");  in TEST_F()
123     expect("ifelse(t, yes, abort())", "yes");  in TEST_F()
124     expect("ifelse(!t, abort(), no)", "no");  in TEST_F()
129     expect("if t then yes else no endif", "yes");  in TEST_F()
130     expect("if \"\" then yes else no endif", "no");  in TEST_F()
131     expect("if \"\" then yes endif", "");  in TEST_F()
132     expect("if \"\"; t then yes endif", "yes");  in TEST_F()
137     expect("less_than_int(3, 14)", "t");  in TEST_F()
138     expect("less_than_int(14, 3)", "");  in TEST_F()
139     expect("less_than_int(x, 3)", "");  in TEST_F()
140     expect("less_than_int(3, x)", "");  in TEST_F()
141     expect("greater_than_int(3, 14)", "");  in TEST_F()
142     expect("greater_than_int(14, 3)", "t");  in TEST_F()
143     expect("greater_than_int(x, 3)", "");  in TEST_F()
144     expect("greater_than_int(3, x)", "");  in TEST_F()
148   expect(std::string(8192, 's'), std::string(8192, 's').c_str());  in TEST_F()