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#include "history.h"
#include <unistd.h>
#include "3rd-party/catch.hpp"
#include "test_helpers/tempdir.h"
using namespace newsboat;
TEST_CASE("History can be iterated on in any direction", "[History]")
{
History h;
SECTION("Empty History returns nothing") {
REQUIRE(h.previous_line() == "");
REQUIRE(h.previous_line() == "");
REQUIRE(h.next_line() == "");
REQUIRE(h.next_line() == "");
SECTION("One line in History") {
h.add_line("testline");
REQUIRE(h.previous_line() == "testline");
REQUIRE(h.previous_line() == "testline");
REQUIRE(h.next_line() == "testline");
REQUIRE(h.next_line() == "");
SECTION("Two lines in History") {
h.add_line("foobar");
REQUIRE(h.previous_line() == "foobar");
REQUIRE(h.previous_line() == "testline");
REQUIRE(h.next_line() == "testline");
REQUIRE(h.previous_line() == "testline");
REQUIRE(h.next_line() == "testline");
REQUIRE(h.next_line() == "foobar");
REQUIRE(h.next_line() == "");
REQUIRE(h.next_line() == "");
}
}
}
}
TEST_CASE("History can be saved and loaded from file", "[History]")
{
test_helpers::TempDir tmp;
const auto filepath = tmp.get_path() + "history.cmdline";
History h;
h.add_line("testline");
h.add_line("foobar");
SECTION("Nothing is saved to file if limit is zero") {
h.save_to_file(filepath, 0);
REQUIRE_FALSE(0 == ::access(filepath.c_str(), R_OK | W_OK));
}
SECTION("Save to file") {
h.save_to_file(filepath, 10);
REQUIRE(0 == ::access(filepath.c_str(), R_OK | W_OK));
SECTION("Load from file") {
History loaded_h;
loaded_h.load_from_file(filepath);
REQUIRE(loaded_h.previous_line() == "foobar");
REQUIRE(loaded_h.previous_line() == "testline");
REQUIRE(loaded_h.next_line() == "testline");
REQUIRE(loaded_h.next_line() == "foobar");
REQUIRE(loaded_h.next_line() == "");
}
}
}
TEST_CASE("Only the most recent lines are saved when limiting history",
"[History]")
{
test_helpers::TempDir tmp;
const auto filepath = tmp.get_path() + "history.cmdline";
const int max_lines = 3;
History h;
h.add_line("1");
h.add_line("2");
h.add_line("3");
h.add_line("4");
SECTION("file with history lines is created") {
h.save_to_file(filepath, max_lines);
REQUIRE(0 == ::access(filepath.c_str(), R_OK | W_OK));
SECTION("when loading, only a limited number of lines are returned") {
History loaded_h;
loaded_h.load_from_file(filepath);
REQUIRE(loaded_h.previous_line() == "4");
REQUIRE(loaded_h.previous_line() == "3");
REQUIRE(loaded_h.previous_line() == "2");
REQUIRE(loaded_h.previous_line() == "2");
}
}
}
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