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/*
* 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 <string>
#include <gtest/gtest.h>
#include "edify/expr.h"
static void expect(const char* expr_str, const char* expected) {
Expr* e;
int error_count = 0;
EXPECT_EQ(0, parse_string(expr_str, &e, &error_count));
EXPECT_EQ(0, error_count);
State state(expr_str, nullptr);
char* result = Evaluate(&state, e);
if (expected == nullptr) {
EXPECT_EQ(nullptr, result);
} else {
EXPECT_STREQ(expected, result);
}
free(result);
}
class EdifyTest : public ::testing::Test {
protected:
virtual 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) {
// big string
expect(std::string(8192, 's').c_str(), std::string(8192, 's').c_str());
}
TEST_F(EdifyTest, unknown_function) {
// unknown function
const char* script1 = "unknown_function()";
Expr* expr;
int error_count = 0;
EXPECT_EQ(1, parse_string(script1, &expr, &error_count));
EXPECT_EQ(1, error_count);
const char* script2 = "abc; unknown_function()";
error_count = 0;
EXPECT_EQ(1, parse_string(script2, &expr, &error_count));
EXPECT_EQ(1, error_count);
const char* script3 = "unknown_function1() || yes";
error_count = 0;
EXPECT_EQ(1, parse_string(script3, &expr, &error_count));
EXPECT_EQ(1, error_count);
}
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