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/*******************************************************************\
Module: Unit tests for parsing generic classes
Author: Diffblue Limited
\*******************************************************************/
#include <java_bytecode/load_method_by_regex.h>
#include <testing-utils/require_vectors_equal_unordered.h>
#include <testing-utils/use_catch.h>
#include <util/symbol_table.h>
#include <java_bytecode/java_types.h>
SCENARIO(
"load_method_by_regex::does_pattern_miss_descriptor",
"[core][java_bytecode][load_method_by_regex]")
{
GIVEN("A string with a java prefix and no descriptor")
{
const std::string pattern = "java::com.diffblue.ClassName.methodName";
WHEN("When calling does_pattern_miss_descriptor")
{
const bool result = does_pattern_miss_descriptor(pattern);
THEN("It should miss discriptor")
{
REQUIRE(result);
}
}
}
GIVEN("A string with a java prefix and a descriptor")
{
const std::string pattern = "java::com.diffblue.ClassName.methodName:()V";
WHEN("When calling does_pattern_miss_descriptor")
{
const bool result = does_pattern_miss_descriptor(pattern);
THEN("It should have the discriptor")
{
REQUIRE_FALSE(result);
}
}
}
GIVEN("A string without a java prefix and without a descriptor")
{
const std::string pattern = "com.diffblue.ClassName.methodName";
WHEN("When calling does_pattern_miss_descriptor")
{
const bool result = does_pattern_miss_descriptor(pattern);
THEN("It should miss discriptor")
{
REQUIRE(result);
}
}
}
GIVEN("A string without a java prefix and with a descriptor")
{
const std::string pattern = "com.diffblue.ClassName.methodName:()V";
WHEN("When calling does_pattern_miss_descriptor")
{
const bool result = does_pattern_miss_descriptor(pattern);
THEN("It should have the discriptor")
{
REQUIRE_FALSE(result);
}
}
}
GIVEN("A string with an almost java prefix and no descriptor")
{
const std::string pattern = "java:com.diffblue.ClassName.methodName";
WHEN("When calling does_pattern_miss_descriptor")
{
const bool result = does_pattern_miss_descriptor(pattern);
THEN("It should classify the last : as a descriptor")
{
REQUIRE_FALSE(result);
}
}
}
GIVEN("A string with an almost java prefix and with a descriptor")
{
const std::string pattern = "java:com.diffblue.ClassName.methodName:()V";
WHEN("When calling does_pattern_miss_descriptor")
{
const bool result = does_pattern_miss_descriptor(pattern);
THEN("It should have the discriptor")
{
REQUIRE_FALSE(result);
}
}
}
}
static symbolt create_method_symbol(const std::string &method_name)
{
return symbolt{method_name, java_method_typet{{}, typet{}}, ID_java};
}
static void require_result_for_pattern(
const std::string &pattern,
const std::vector<irep_idt> &expected,
const symbol_tablet &symbol_table)
{
WHEN("Constructing a load_method_by_regex")
{
const auto matcher = build_load_method_by_regex(pattern);
const auto &results = matcher(symbol_table);
if(expected.size() == 1)
{
THEN("Expect " + id2string(expected[0]))
{
require_vectors_equal_unordered(results, expected);
}
}
else
{
THEN("Expect " + std::to_string(expected.size()) + " symbols")
{
require_vectors_equal_unordered(results, expected);
}
}
}
}
SCENARIO("load_method_by_regex", "[core][java_bytecode][load_method_by_regex]")
{
symbol_tablet symbol_table;
symbol_table.add(create_method_symbol("java::pack.Class.methodName:()V"));
symbol_table.add(create_method_symbol("java::pack.Class.anotherMethod:()V"));
symbol_table.add(create_method_symbol("java::pack.Different.methodName:()V"));
symbol_table.add(create_method_symbol("java::another.Class.methodName:()V"));
GIVEN("A pattern without java prefix, without descriptor, no regex")
{
const std::string pattern = "pack.Class.methodName";
const std::vector<irep_idt> expected = {"java::pack.Class.methodName:()V"};
require_result_for_pattern(pattern, expected, symbol_table);
}
GIVEN("A pattern with java prefix, without descriptor, no regex")
{
const std::string pattern = "java::pack.Class.methodName";
const std::vector<irep_idt> expected = {"java::pack.Class.methodName:()V"};
require_result_for_pattern(pattern, expected, symbol_table);
}
GIVEN("A pattern with java prefix, with descriptor, no regex")
{
const std::string pattern = R"(java::pack.Class.methodName:\(\)V)";
const std::vector<irep_idt> expected = {"java::pack.Class.methodName:()V"};
require_result_for_pattern(pattern, expected, symbol_table);
}
GIVEN("A pattern with java prefix, with wrong descriptor, no regex")
{
const std::string pattern = R"(java::pack.Class.methodName:\(I\)V)";
const std::vector<irep_idt> expected = {};
require_result_for_pattern(pattern, expected, symbol_table);
}
GIVEN("A pattern with java prefix, without descriptor, with regex")
{
const std::string pattern = "java::pack.Class..*";
const std::vector<irep_idt> expected = {
"java::pack.Class.methodName:()V", "java::pack.Class.anotherMethod:()V"};
require_result_for_pattern(pattern, expected, symbol_table);
}
GIVEN("A pattern without java prefix, without descriptor, with regex")
{
const std::string pattern = "pack.Class..*";
const std::vector<irep_idt> expected = {
"java::pack.Class.methodName:()V", "java::pack.Class.anotherMethod:()V"};
require_result_for_pattern(pattern, expected, symbol_table);
}
GIVEN("A pattern without java prefix, with descriptor, with regex in package")
{
const std::string pattern = R"(\w+.Class.methodName:\(\)V)";
const std::vector<irep_idt> expected = {
"java::pack.Class.methodName:()V", "java::another.Class.methodName:()V"};
require_result_for_pattern(pattern, expected, symbol_table);
}
}
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