mirror of
https://github.com/enduro2d/enduro2d.git
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107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
/*******************************************************************************
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* This file is part of the "Enduro2D"
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* For conditions of distribution and use, see copyright notice in LICENSE.md
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* Copyright (C) 2018 Matvey Cherevko
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******************************************************************************/
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#include "_utils.hpp"
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using namespace e2d;
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TEST_CASE("streams") {
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buffer hello_data("hello", 5);
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{
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input_stream_uptr s = make_memory_stream(hello_data);
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REQUIRE_THROWS_AS(s->seek(-10, false), bad_stream_operation);
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REQUIRE(s->tell() == 0);
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REQUIRE_THROWS_AS(s->seek(10, false), bad_stream_operation);
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REQUIRE_THROWS_AS(
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s->seek(std::numeric_limits<std::ptrdiff_t>::min(), false),
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bad_stream_operation);
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REQUIRE_THROWS_AS(
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s->seek(std::numeric_limits<std::ptrdiff_t>::max(), false),
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bad_stream_operation);
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REQUIRE(s->tell() == 0);
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REQUIRE((s->seek(5, false) == 5 && s->tell() == 5));
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REQUIRE((s->seek(3, false) == 3 && s->tell() == 3));
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REQUIRE((s->seek(0, false) == 0 && s->tell() == 0));
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}
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{
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input_stream_uptr s = make_memory_stream(hello_data);
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REQUIRE((s->seek(3, false) == 3 && s->tell() == 3));
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REQUIRE_THROWS_AS(s->seek(3, true), bad_stream_operation);
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REQUIRE(s->tell() == 3);
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REQUIRE((s->seek(2, true) == 5 && s->tell() == 5));
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REQUIRE_THROWS_AS(s->seek(-6, true), bad_stream_operation);
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REQUIRE(s->tell() == 5);
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REQUIRE((s->seek(-5, true) == 0 && s->tell() == 0));
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}
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{
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input_stream_uptr s = make_memory_stream(hello_data);
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REQUIRE((s->seek(3, false) == 3 && s->tell() == 3));
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REQUIRE_THROWS_AS(s->seek(-4, true), bad_stream_operation);
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REQUIRE(s->tell() == 3);
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REQUIRE((s->seek(-3, true) == 0 && s->tell() == 0));
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REQUIRE_THROWS_AS(s->seek(6, true), bad_stream_operation);
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REQUIRE(s->tell() == 0);
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REQUIRE((s->seek(5, true) == 5 && s->tell() == 5));
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}
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{
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input_stream_uptr s = make_memory_stream(hello_data);
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REQUIRE(s->tell() == 0);
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REQUIRE(s->length() == 5);
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char buf[5] = {'\0'};
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REQUIRE(s->read(buf, 5) == 5);
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REQUIRE(std::memcmp(buf, "hello", 5) == 0);
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REQUIRE(s->tell() == 5);
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REQUIRE(s->length() == 5);
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}
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{
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input_stream_uptr s = make_memory_stream(hello_data);
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char buf[10] = {'\0'};
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{
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REQUIRE(s->read(buf, 0) == 0);
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REQUIRE(std::memcmp(buf, "\0\0\0\0\0\0\0\0\0\0", 10) == 0);
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REQUIRE(s->tell() == 0);
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REQUIRE(s->length() == 5);
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}
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{
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REQUIRE(s->read(buf, 10) == 5);
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REQUIRE(std::memcmp(buf, "hello\0\0\0\0\0", 10) == 0);
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REQUIRE(s->tell() == 5);
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REQUIRE(s->length() == 5);
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}
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{
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REQUIRE(s->seek(2, false) == 2);
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REQUIRE(s->read(buf, 10) == 3);
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REQUIRE(std::memcmp(buf, "llolo\0\0\0\0\0", 10) == 0);
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REQUIRE(s->tell() == 5);
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REQUIRE(s->length() == 5);
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}
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{
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REQUIRE(s->seek(0, false) == 0);
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REQUIRE(s->read(buf, 3) == 3);
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REQUIRE(std::memcmp(buf, "hello\0\0\0\0\0", 10) == 0);
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REQUIRE(s->tell() == 3);
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REQUIRE(s->length() == 5);
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}
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}
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{
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input_stream_uptr s = make_memory_stream(hello_data);
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char buf[10] = {'\0'};
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{
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REQUIRE(s->read(buf, 1) == 1);
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REQUIRE(std::memcmp(buf, "h\0\0\0\0\0\0\0\0\0", 10) == 0);
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REQUIRE(s->tell() == 1);
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REQUIRE(s->length() == 5);
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}
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{
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buffer b;
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REQUIRE(streams::try_read_tail(b, s));
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REQUIRE(b.size() == 4);
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REQUIRE(std::memcmp(b.data(), "ello", 4) == 0);
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REQUIRE(s->tell() == 5);
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REQUIRE(s->length() == 5);
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}
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}
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}
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