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-rw-r--r--test/common/span.h436
1 files changed, 436 insertions, 0 deletions
diff --git a/test/common/span.h b/test/common/span.h
new file mode 100644
index 0000000000..6586d491ec
--- /dev/null
+++ b/test/common/span.h
@@ -0,0 +1,436 @@
+#include <cxxtest/TestSuite.h>
+
+class SpanTestSuite;
+
+#include "common/span.h"
+#include "common/str.h"
+
+class SpanTestSuite : public CxxTest::TestSuite {
+ struct Foo {
+ int a;
+ };
+
+public:
+ void test_span_iterator_const() {
+ byte data[] = { 'h', 'e', 'l', 'l', 'o' };
+ const Common::Span<byte> span(data, sizeof(data));
+
+ Common::Span<byte>::const_iterator it = span.cbegin();
+
+ Common::Span<byte>::const_iterator sameIt(it);
+
+ TS_ASSERT_EQUALS(sameIt, it);
+
+ uint i;
+ for (i = 0; it != span.cend(); ++i, ++it) {
+ TS_ASSERT_EQUALS(*it, data[i]);
+ TS_ASSERT_LESS_THAN(i, sizeof(data));
+ }
+ TS_ASSERT_EQUALS(i, sizeof(data));
+
+ it = span.cend() - 1;
+ for (i = sizeof(data) - 1; it != span.cbegin(); --i, --it) {
+ TS_ASSERT_EQUALS(data[i], *it);
+ }
+ TS_ASSERT_EQUALS(i, 0U);
+
+ it = span.cbegin();
+
+ it += 4;
+ TS_ASSERT_EQUALS(data[4], *it);
+
+ it -= 4;
+ TS_ASSERT_EQUALS(data[0], *it);
+
+ TS_ASSERT_EQUALS(data[0], *it++);
+
+ TS_ASSERT_EQUALS(data[1], *it--);
+
+ TS_ASSERT_EQUALS(span.cend() - span.cbegin(), 5);
+
+ TS_ASSERT_EQUALS(*(span.cbegin() + 4), data[4]);
+
+ TS_ASSERT_EQUALS(*(span.cend() - 4), data[1]);
+
+ TS_ASSERT(span.cbegin() < span.cend());
+
+ TS_ASSERT(span.cbegin() <= span.cend());
+ TS_ASSERT(span.cbegin() <= span.cbegin());
+
+ TS_ASSERT(span.cend() > span.cbegin());
+
+ TS_ASSERT(span.cend() >= span.cbegin());
+ TS_ASSERT(span.cend() >= span.cend());
+ }
+
+ void test_span_iterator() {
+ byte data[] = { 'h', 'e', 'l', 'l', 'o' };
+ Common::Span<byte> span(data, sizeof(data));
+
+ Common::Span<byte>::iterator it = span.begin();
+
+ Common::Span<byte>::iterator sameIt(it);
+
+ TS_ASSERT_EQUALS(sameIt, it);
+
+ uint i;
+ for (i = 0; it != span.end(); ++i, ++it) {
+ TS_ASSERT_EQUALS(*it, data[i]);
+ TS_ASSERT_LESS_THAN(i, sizeof(data));
+ }
+ TS_ASSERT_EQUALS(i, sizeof(data));
+
+ it = span.end() - 1;
+ for (i = sizeof(data) - 1; it != span.begin(); --i, --it) {
+ TS_ASSERT_EQUALS(data[i], *it);
+ }
+ TS_ASSERT_EQUALS(i, 0U);
+
+ it = span.begin();
+
+ it += 4;
+ TS_ASSERT_EQUALS(data[4], *it);
+
+ it -= 4;
+ TS_ASSERT_EQUALS(data[0], *it);
+
+ TS_ASSERT_EQUALS(data[0], *it++);
+
+ TS_ASSERT_EQUALS(data[1], *it--);
+
+ TS_ASSERT_EQUALS(span.end() - span.begin(), 5);
+
+ TS_ASSERT_EQUALS(*(span.begin() + 4), data[4]);
+
+ TS_ASSERT_EQUALS(*(span.end() - 4), data[1]);
+
+ TS_ASSERT(span.begin() < span.end());
+
+ TS_ASSERT(span.begin() <= span.end());
+ TS_ASSERT(span.begin() <= span.begin());
+
+ TS_ASSERT(span.end() > span.begin());
+
+ TS_ASSERT(span.end() >= span.begin());
+ TS_ASSERT(span.end() >= span.end());
+
+ it = span.begin();
+ for (i = 0; it != span.end(); ++i, ++it) {
+ *it = 'a' + i;
+ }
+
+ it = span.begin();
+ for (i = 0; it != span.end(); ++i, ++it) {
+ TS_ASSERT_EQUALS(*it, 'a' + i);
+ TS_ASSERT_EQUALS(data[i], 'a' + i);
+ }
+ }
+
+ void test_span_iterator_ptr() {
+ Foo foo[2];
+ foo[0].a = 1;
+ foo[1].a = 2;
+
+ const Common::Span<Foo> span(foo, 2);
+ Common::Span<Foo>::const_iterator it = span.cbegin();
+ TS_ASSERT_EQUALS(it->a, 1);
+ ++it;
+ TS_ASSERT_EQUALS(it->a, 2);
+
+ TS_ASSERT_EQUALS(it[0].a, 2);
+ TS_ASSERT_EQUALS(it[-1].a, 1);
+ --it;
+ TS_ASSERT_EQUALS(it[1].a, 2);
+ }
+
+ void test_span_owner() {
+ Common::SpanOwner<Common::Span<byte> > owner;
+ owner->allocate(3);
+ owner[0] = 'a';
+ owner[1] = 'b';
+ owner[2] = 'c';
+ for (int i = 0; i < 3; ++i) {
+ TS_ASSERT_EQUALS(owner->getUint8At(i), 'a' + i);
+ TS_ASSERT_EQUALS((*owner)[i], 'a' + i);
+ }
+
+ {
+ Common::SpanOwner<Common::NamedSpan<byte> > owner2;
+ TS_ASSERT(owner2->data() == nullptr);
+ owner2->allocateFromSpan(*owner);
+ TS_ASSERT(owner2->data() != nullptr);
+ TS_ASSERT_DIFFERS(owner->data(), owner2->data());
+
+ for (int i = 0; i < 3; ++i) {
+ TS_ASSERT_EQUALS(owner2->getUint8At(i), 'a' + i);
+ TS_ASSERT_EQUALS((*owner2)[i], 'a' + i);
+ }
+
+ TS_ASSERT_EQUALS((bool)owner2, true);
+ owner2.release();
+ TS_ASSERT_EQUALS((bool)owner2, false);
+ }
+
+ {
+ Common::SpanOwner<Common::Span<byte> > owner2;
+ TS_ASSERT_EQUALS((bool)owner, true);
+ void *dataPtr = owner->data();
+ owner2 = owner;
+ TS_ASSERT_EQUALS((bool)owner, false);
+ TS_ASSERT(owner->data() == nullptr);
+ TS_ASSERT_EQUALS(owner2->data(), dataPtr);
+ }
+
+ {
+ TS_ASSERT_EQUALS((bool)owner, false);
+ Common::SpanOwner<Common::Span<byte> > owner2(owner);
+ TS_ASSERT_EQUALS((bool)owner2, false);
+ }
+
+ {
+ owner->allocate(1);
+ TS_ASSERT_EQUALS((bool)owner, true);
+ Common::SpanOwner<Common::Span<byte> > owner2(owner);
+ TS_ASSERT_EQUALS((bool)owner2, true);
+ TS_ASSERT_DIFFERS(owner->data(), owner2->data());
+ }
+
+ {
+ TS_ASSERT_EQUALS((bool)owner, true);
+ void *dataPtr = owner->data();
+ TS_ASSERT_EQUALS(owner.release(), dataPtr);
+ TS_ASSERT_EQUALS((bool)owner, false);
+ }
+ }
+
+ void test_span_byte() {
+ byte data[] = { 'h', 'e', 'l', 'l', 'o' };
+ Common::Span<byte> span(data, sizeof(data));
+
+ TS_ASSERT_EQUALS(span.size(), sizeof(data));
+ TS_ASSERT_EQUALS(span.byteSize(), sizeof(data));
+
+ Common::Span<byte> other(span);
+ TS_ASSERT_EQUALS(span, other);
+ other.clear();
+ TS_ASSERT(span != other);
+
+ TS_ASSERT_EQUALS(span[0], 'h');
+ TS_ASSERT_EQUALS(span[1], 'e');
+ span[1] = 'o';
+ TS_ASSERT_EQUALS(span[1], 'o');
+
+ TS_ASSERT((bool)span);
+ span.clear();
+ TS_ASSERT(!(bool)span);
+ }
+
+ void test_span_integers() {
+ const byte data[] = { 0xFF, 1, 2, 3, 2, 1, 0xFF };
+ Common::Span<const byte> span(data, sizeof(data));
+
+ TS_ASSERT_EQUALS(span[0], 255);
+ TS_ASSERT_EQUALS(span.getInt8At(0), -1);
+ TS_ASSERT_EQUALS(span.getUint8At(0), 255U);
+ TS_ASSERT_EQUALS(span.getInt16BEAt(0), -255);
+ TS_ASSERT_EQUALS(span.getUint16BEAt(0), 65281U);
+ TS_ASSERT_EQUALS(span.getInt16LEAt(5), -255);
+ TS_ASSERT_EQUALS(span.getUint16LEAt(5), 65281U);
+ TS_ASSERT_EQUALS(span.getUint24LEAt(0), 131583U);
+ TS_ASSERT_EQUALS(span.getInt32BEAt(0), -16711165);
+ TS_ASSERT_EQUALS(span.getUint32BEAt(0), 4278256131U);
+ TS_ASSERT_EQUALS(span.getInt32LEAt(3), -16711165);
+ TS_ASSERT_EQUALS(span.getUint32LEAt(3), 4278256131U);
+
+#ifdef SCUMM_LITTLE_ENDIAN
+ TS_ASSERT_EQUALS(span.getUint32At(3), 4278256131U);
+#elif SCUMM_BIG_ENDIAN
+ TS_ASSERT_EQUALS(span.getUint32At(0), 4278256131U);
+#else
+#error No endianness detected
+#endif
+ }
+
+ void test_span_string() {
+ char data[] = "hello";
+ Common::Span<char> span(data, sizeof(data));
+ TS_ASSERT_EQUALS(span[sizeof(data) - 1], '\0');
+
+ TS_ASSERT(span.getStringAt(0) == data);
+ TS_ASSERT(span.getStringAt(0, 2) == "he");
+ span[3] = '\0';
+ TS_ASSERT(span.getStringAt(0) == "hel");
+ }
+
+ void test_span_unsafe_data() {
+ char data[] = "hello";
+ Common::Span<char> span(data, sizeof(data));
+ TS_ASSERT_EQUALS(span.getUnsafeDataAt(0, 6), data);
+ }
+
+ void test_span_subspan() {
+ byte data[] = { 1, 2, 3, 4, 5, 6 };
+ Common::Span<byte> span(data, sizeof(data));
+
+ TS_ASSERT_EQUALS(span.subspan(0).size(), sizeof(data) - 0);
+ TS_ASSERT_EQUALS(span.subspan(2).size(), sizeof(data) - 2);
+ TS_ASSERT_EQUALS(span.subspan(2, 2).size(), 2U);
+ TS_ASSERT_EQUALS(span.subspan<uint16>(0).size(), sizeof(data) / 2);
+ TS_ASSERT_EQUALS(span.subspan<uint16>(0).byteSize(), sizeof(data));
+ TS_ASSERT_EQUALS(span.subspan<uint16>(0, 2).size(), 1U);
+ TS_ASSERT_EQUALS(span.subspan<uint16>(0, 2).byteSize(), 2U);
+
+#ifdef SCUMM_LITTLE_ENDIAN
+ TS_ASSERT_EQUALS(span.subspan<uint16>(0)[1], 4 << 8 | 3);
+#elif SCUMM_BIG_ENDIAN
+ TS_ASSERT_EQUALS(span.subspan<uint16>(0)[1], 3 << 8 | 4);
+#else
+#error No endianness detected
+#endif
+
+ Common::Span<uint16> shortSpan = span.subspan<uint16>(0);
+ TS_ASSERT_EQUALS(shortSpan.byteSize(), span.byteSize());
+ TS_ASSERT(shortSpan.size() != span.size());
+ shortSpan[1] = 0xFFFF;
+ Common::Span<byte> byteSpan = shortSpan.subspan<byte>(1);
+ TS_ASSERT_EQUALS(byteSpan.size(), sizeof(data) - 1 * sizeof(uint16));
+ TS_ASSERT_EQUALS(byteSpan[0], 0xFF);
+ TS_ASSERT_EQUALS(byteSpan[1], 0xFF);
+ }
+
+ void test_span_to_stream() {
+ const byte data[] = { 0, 1, 2, 3, 4, 5 };
+ Common::Span<const byte> span(data, sizeof(data));
+
+ Common::MemoryReadStream stream(span.toStream(1, 2));
+ byte out;
+ TS_ASSERT_EQUALS(stream.read(&out, 1), 1U);
+ TS_ASSERT_EQUALS(out, 1);
+ TS_ASSERT_EQUALS(stream.read(&out, 1), 1U);
+ TS_ASSERT_EQUALS(out, 2);
+ TS_ASSERT_EQUALS(stream.read(&out, 1), 0U);
+ }
+
+ void test_span_copying() {
+ const byte data[] = { 0, 1, 2, 3, 4, 5 };
+ Common::Span<const byte> span(data, sizeof(data));
+
+ byte targetData[sizeof(data)] = {};
+ Common::Span<byte> target(targetData, sizeof(targetData));
+ span.copyDataTo(target);
+ for (uint i = 0; i < sizeof(data); ++i) {
+ TS_ASSERT_EQUALS(target[i], i);
+ }
+
+ byte out[sizeof(data)];
+ span.unsafeCopyDataTo(out);
+ for (uint i = 0; i < sizeof(data); ++i) {
+ TS_ASSERT_EQUALS(out[i], i);
+ }
+ }
+
+ void test_span_validation() {
+ byte data[6];
+ Common::Span<byte> span(data, sizeof(data));
+ TS_ASSERT(!span.checkInvalidBounds(0, 0));
+ TS_ASSERT(!span.checkInvalidBounds(0, 6));
+ TS_ASSERT(!span.checkInvalidBounds(2, 4));
+ TS_ASSERT(!span.checkInvalidBounds(4, 2));
+ TS_ASSERT(!span.checkInvalidBounds(6, 0));
+ TS_ASSERT(!span.checkInvalidBounds(2, -2));
+ TS_ASSERT(span.checkInvalidBounds(-2, 2)); // negative index disallowed
+ TS_ASSERT(span.checkInvalidBounds(6, 1)); // positive overflow (+7)
+ TS_ASSERT(span.checkInvalidBounds(2, -4)); // negative overflow (-2)
+
+ const ptrdiff_t big = 1L << (8 * sizeof(ptrdiff_t) - 1);
+ TS_ASSERT(span.checkInvalidBounds(big, 0));
+ TS_ASSERT(span.checkInvalidBounds(0, big));
+ TS_ASSERT(span.checkInvalidBounds(big, big));
+ }
+
+ void test_span_validation_message() {
+ byte data[1];
+ Common::Span<byte> span(data, sizeof(data));
+
+ Common::String source = span.name();
+ Common::String actual;
+ Common::String expected;
+
+ actual = span.getValidationMessage(12, 34, Common::kValidateRead);
+ expected = Common::String::format("Access violation reading %s: 12 + 34 > 1", source.c_str());
+ TS_ASSERT_EQUALS(actual, expected);
+
+ actual = span.getValidationMessage(23, 45, Common::kValidateWrite);
+ expected = Common::String::format("Access violation writing %s: 23 + 45 > 1", source.c_str());
+ TS_ASSERT_EQUALS(actual, expected);
+
+ actual = span.getValidationMessage(-34, -56, Common::kValidateSeek);
+ expected = Common::String::format("Access violation seeking %s: -34 + -56 > 1", source.c_str());
+ TS_ASSERT_EQUALS(actual, expected);
+ }
+
+ void test_span_comparators() {
+ byte data[2];
+ Common::Span<const byte> span0(data, sizeof(data));
+ Common::Span<const byte> span1(data, sizeof(data));
+ Common::Span<const byte> span2(data, sizeof(data) - 1);
+ Common::Span<const byte> span3(data + 1, sizeof(data) - 1);
+ Common::Span<const byte> span4(data + 2, sizeof(data) - 2);
+
+ TS_ASSERT(span0 == span1);
+ TS_ASSERT(span0 != span2);
+ TS_ASSERT(span0 <= span1);
+ TS_ASSERT(span0 <= span3);
+ TS_ASSERT(span0 < span3);
+ TS_ASSERT(span3 < span4);
+ TS_ASSERT(span4 > span3);
+ TS_ASSERT(span3 > span0);
+ TS_ASSERT(span4 >= span4);
+ TS_ASSERT(span0 >= span1);
+
+ TS_ASSERT_EQUALS(span1 - span0, 0);
+ TS_ASSERT_EQUALS(span3 - span0, 1);
+ TS_ASSERT_EQUALS(span4 - span0, 2);
+ TS_ASSERT_EQUALS(span0 - span1, 0);
+ TS_ASSERT_EQUALS(span0 - span3, -1);
+ TS_ASSERT_EQUALS(span0 - span4, -2);
+ }
+
+ void test_namedspan() {
+ byte data[6] = { 0, 1, 2, 3, 4, 5 };
+ Common::NamedSpan<byte> span(data, sizeof(data), "foo.data");
+ TS_ASSERT_EQUALS(span.name(), "foo.data");
+
+ Common::String actual;
+ Common::String expected;
+
+ actual = span.getValidationMessage(12, 34, Common::kValidateRead);
+ expected = "Access violation reading foo.data: 12 + 34 > 6 (abs: 12 + 34 > 6)";
+ TS_ASSERT_EQUALS(actual, expected);
+
+ {
+ Common::NamedSpan<byte> subspan = span.subspan(2);
+
+ expected = "Access violation reading foo.data: 23 + 45 > 4 (abs: 25 + 45 > 6)";
+ actual = subspan.getValidationMessage(23, 45, Common::kValidateRead);
+ TS_ASSERT_EQUALS(actual, expected);
+ }
+
+ {
+ Common::NamedSpan<byte> subspan = span.subspan(2, Common::kSpanMaxSize, "new.data");
+ expected = "Access violation reading new.data: -34 + -56 > 4 (abs: -32 + -56 > 6)";
+ actual = subspan.getValidationMessage(-34, -56, Common::kValidateRead);
+ TS_ASSERT_EQUALS(actual, expected);
+ }
+
+ {
+ Common::NamedSpan<byte> subspan = span.subspan(2, Common::kSpanMaxSize, "new.data", 0);
+ expected = "Access violation reading new.data: -34 + -56 > 4 (abs: -34 + -56 > 4)";
+ actual = subspan.getValidationMessage(-34, -56, Common::kValidateRead);
+ TS_ASSERT_EQUALS(actual, expected);
+ }
+
+ Common::Span<byte> superclassInstance;
+ superclassInstance = span;
+ }
+};
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