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/*******************************************************************\
Module: Unit tests of split_string
Author: Diffblue Ltd.
\*******************************************************************/
/// \file
/// split_string Unit Tests
#include <testing-utils/use_catch.h>
#include <util/string_utils.h>
struct expected_resultst
{
std::vector<std::string> no_strip_no_remove;
std::vector<std::string> strip_no_remove;
std::vector<std::string> no_strip_remove_empty;
std::vector<std::string> strip_remove_empty;
};
/// For a given string and delimiter, use the split_string function with all
/// the possible combinations of stripping whitespace and removing empty
/// elements.
/// \param string: The string to split
/// \param delimiter: The delimter to split on
/// \param expected_results: The results expected for each of the versions of
/// the method
void run_on_all_variants(
std::string string,
char delimiter,
const expected_resultst &expected_results)
{
WHEN("Not stripping, not removing empty")
{
std::vector<std::string> result =
split_string(string, delimiter, false, false);
THEN("Should get expected vector")
{
REQUIRE_THAT(
result,
// NOLINTNEXTLINE(whitespace/braces)
Catch::Matchers::Equals(
std::vector<std::string>(expected_results.no_strip_no_remove)));
}
}
WHEN("Not stripping, removing empty")
{
std::vector<std::string> result =
split_string(string, delimiter, false, true);
THEN("Should get expected vector")
{
REQUIRE_THAT(
result,
// NOLINTNEXTLINE(whitespace/braces)
Catch::Matchers::Equals(
std::vector<std::string>(expected_results.no_strip_remove_empty)));
}
}
WHEN("Stripping, not removing empty")
{
std::vector<std::string> result =
split_string(string, delimiter, true, false);
THEN("Should get expected vector")
{
REQUIRE_THAT(
result,
// NOLINTNEXTLINE(whitespace/braces)
Catch::Matchers::Equals(
std::vector<std::string>(expected_results.strip_no_remove)));
}
}
WHEN("Stripping and removing empty")
{
std::vector<std::string> result =
split_string(string, delimiter, true, true);
THEN("Should get expected vector")
{
REQUIRE_THAT(
result,
// NOLINTNEXTLINE(whitespace/braces)
Catch::Matchers::Equals(
std::vector<std::string>(expected_results.strip_remove_empty)));
}
}
}
SCENARIO("split_string", "[core][utils][string_utils][split_string]")
{
GIVEN("A non whitespace delimited string with two elements")
{
const char delimiter = ',';
const std::string string = " a,, x , ,";
expected_resultst expected_results;
expected_results.no_strip_no_remove = {" a", "", " x ", " ", ""};
expected_results.strip_no_remove = {"a", "", "x", "", ""};
expected_results.no_strip_remove_empty = {" a", " x ", " "};
expected_results.strip_remove_empty = {"a", "x"};
run_on_all_variants(string, delimiter, expected_results);
}
GIVEN("An empty string")
{
std::string string;
WHEN("Splitting it")
{
expected_resultst expected_results;
expected_results.no_strip_no_remove = {""};
expected_results.strip_no_remove = {""};
expected_results.no_strip_remove_empty = {};
expected_results.strip_remove_empty = {};
run_on_all_variants(string, ',', expected_results);
}
}
GIVEN("A whitespace only string")
{
std::string string = " ";
WHEN("Splitting it")
{
expected_resultst expected_results;
expected_results.no_strip_no_remove = {" "};
expected_results.strip_no_remove = {""};
expected_results.no_strip_remove_empty = {" "};
expected_results.strip_remove_empty = {};
run_on_all_variants(string, ',', expected_results);
}
}
GIVEN("A whitespace delimter")
{
std::string string = "a\nb\nc";
const char delimiter = '\n';
WHEN("Not stripping, not removing empty")
{
std::vector<std::string> result =
split_string(string, delimiter, false, false);
THEN("Should get expected vector")
{
std::vector<std::string> expected_result = {"a", "b", "c"};
REQUIRE_THAT(result, Catch::Matchers::Equals(expected_result));
}
}
WHEN("Not stripping, removing empty")
{
std::vector<std::string> result =
split_string(string, delimiter, false, true);
THEN("Should get expected vector")
{
std::vector<std::string> expected_result = {"a", "b", "c"};
REQUIRE_THAT(result, Catch::Matchers::Equals(expected_result));
}
}
// TODO(tkiley): here we should check what happens when trying to enable
// TODO(tkiley): strip, but currently the behaviour terminates the unit test
}
}
SCENARIO("split_string into two", "[core][utils][string_utils][split_string]")
{
GIVEN("A string with one separator")
{
const char separator = ':';
std::string string = "a:b";
WHEN("Splitting into two strings")
{
std::string s1;
std::string s2;
split_string(string, separator, s1, s2, false);
THEN("The string should be split")
{
REQUIRE(s1 == "a");
REQUIRE(s2 == "b");
}
}
}
GIVEN("A string and a whitespace delimiter")
{
std::string string = "a\nb";
const char delimiter = '\n';
WHEN("Splitting in two and not stripping")
{
std::string s1;
std::string s2;
split_string(string, delimiter, s1, s2, false);
THEN("The string should be split")
{
REQUIRE(s1 == "a");
REQUIRE(s2 == "b");
}
}
// TODO(tkiley): here we should check what happens when trying to enable
// TODO(tkiley): strip, but currently the behaviour terminates the unit test
}
}
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