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#include "Test.h"
#include "SkRandom.h"
#include "SkStream.h"
#define MAX_SIZE (256 * 1024)
static void random_fill(SkRandom& rand, void* buffer, size_t size) {
char* p = (char*)buffer;
char* stop = p + size;
while (p < stop) {
*p++ = (char)(rand.nextU() >> 8);
}
}
static void test_buffer(skiatest::Reporter* reporter) {
SkRandom rand;
SkAutoMalloc am(MAX_SIZE * 2);
char* storage = (char*)am.get();
char* storage2 = storage + MAX_SIZE;
random_fill(rand, storage, MAX_SIZE);
for (int sizeTimes = 0; sizeTimes < 100; sizeTimes++) {
int size = rand.nextU() % MAX_SIZE;
if (size == 0) {
size = MAX_SIZE;
}
for (int times = 0; times < 100; times++) {
int bufferSize = 1 + (rand.nextU() & 0xFFFF);
SkMemoryStream mstream(storage, size);
SkBufferStream bstream(&mstream, bufferSize);
int bytesRead = 0;
while (bytesRead < size) {
int s = 17 + (rand.nextU() & 0xFFFF);
int ss = bstream.read(storage2, s);
REPORTER_ASSERT(reporter, ss > 0 && ss <= s);
REPORTER_ASSERT(reporter, bytesRead + ss <= size);
REPORTER_ASSERT(reporter,
memcmp(storage + bytesRead, storage2, ss) == 0);
bytesRead += ss;
}
REPORTER_ASSERT(reporter, bytesRead == size);
}
}
}
static void TestRStream(skiatest::Reporter* reporter) {
static const char s[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
char copy[sizeof(s)];
SkRandom rand;
for (int i = 0; i < 65; i++) {
char* copyPtr = copy;
SkMemoryStream mem(s, sizeof(s));
SkBufferStream buff(&mem, i);
do {
copyPtr += buff.read(copyPtr, rand.nextU() & 15);
} while (copyPtr < copy + sizeof(s));
REPORTER_ASSERT(reporter, copyPtr == copy + sizeof(s));
REPORTER_ASSERT(reporter, memcmp(s, copy, sizeof(s)) == 0);
}
test_buffer(reporter);
}
static void TestWStream(skiatest::Reporter* reporter) {
SkDynamicMemoryWStream ds;
const char s[] = "abcdefghijklmnopqrstuvwxyz";
int i;
for (i = 0; i < 100; i++) {
REPORTER_ASSERT(reporter, ds.write(s, 26));
}
REPORTER_ASSERT(reporter, ds.getOffset() == 100 * 26);
char* dst = new char[100 * 26 + 1];
dst[100*26] = '*';
ds.copyTo(dst);
REPORTER_ASSERT(reporter, dst[100*26] == '*');
// char* p = dst;
for (i = 0; i < 100; i++) {
REPORTER_ASSERT(reporter, memcmp(&dst[i * 26], s, 26) == 0);
}
REPORTER_ASSERT(reporter, memcmp(dst, ds.getStream(), 100*26) == 0);
delete[] dst;
}
static void TestStreams(skiatest::Reporter* reporter) {
TestRStream(reporter);
TestWStream(reporter);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("Stream", StreamTestClass, TestStreams)
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