summaryrefslogtreecommitdiffstats
path: root/js/src/jsapi-tests/testDeflateStringToUTF8Buffer.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'js/src/jsapi-tests/testDeflateStringToUTF8Buffer.cpp')
-rw-r--r--js/src/jsapi-tests/testDeflateStringToUTF8Buffer.cpp286
1 files changed, 286 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testDeflateStringToUTF8Buffer.cpp b/js/src/jsapi-tests/testDeflateStringToUTF8Buffer.cpp
new file mode 100644
index 000000000..348665685
--- /dev/null
+++ b/js/src/jsapi-tests/testDeflateStringToUTF8Buffer.cpp
@@ -0,0 +1,286 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsapi-tests/tests.h"
+
+using namespace JS;
+
+BEGIN_TEST(test_DeflateStringToUTF8Buffer)
+{
+ JSString* str;
+ JSFlatString* flatStr;
+
+ // DeflateStringToUTF8Buffer does not write a null terminator, so the byte
+ // following the last byte written to the |actual| buffer should retain
+ // the value it held before the call to DeflateStringToUTF8Buffer, which is
+ // initialized to 0x1.
+
+ char actual[100];
+ mozilla::RangedPtr<char> range = mozilla::RangedPtr<char>(actual, 100);
+
+ // Test with an ASCII string, which calls JSFlatString::latin1Chars
+ // to retrieve the characters from the string and generates UTF-8 output
+ // that is identical to the ASCII input.
+
+ str = JS_NewStringCopyZ(cx, "Ohai"); // { 0x4F, 0x68, 0x61, 0x69 }
+ MOZ_RELEASE_ASSERT(str);
+ flatStr = JS_FlattenString(cx, str);
+
+ {
+ const char expected[] = { 0x4F, 0x68, 0x61, 0x69, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ }
+
+ {
+ size_t dstlen = 4;
+ const char expected[] = { 0x4F, 0x68, 0x61, 0x69, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 4u);
+ }
+
+ {
+ size_t numchars = 0;
+ const char expected[] = { 0x4F, 0x68, 0x61, 0x69, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, nullptr, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ size_t dstlen = 4;
+ size_t numchars = 0;
+ const char expected[] = { 0x4F, 0x68, 0x61, 0x69, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 4u);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ size_t dstlen = 3;
+ size_t numchars = 0;
+ const char expected[] = { 0x4F, 0x68, 0x61, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 3u);
+ CHECK_EQUAL(numchars, 3u);
+ }
+
+ {
+ size_t dstlen = 100;
+ size_t numchars = 0;
+ const char expected[] = { 0x4F, 0x68, 0x61, 0x69, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 4u);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ size_t dstlen = 0;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 0u);
+ CHECK_EQUAL(numchars, 0u);
+ }
+
+ // Test with a Latin-1 string, which calls JSFlatString::latin1Chars
+ // like with the ASCII string but generates UTF-8 output that is different
+ // from the ASCII input.
+
+ str = JS_NewUCStringCopyZ(cx, u"\xD3\x68\xE3\xEF"); // u"Óhãï"
+ MOZ_RELEASE_ASSERT(str);
+ flatStr = JS_FlattenString(cx, str);
+
+ {
+ const unsigned char expected[] = { 0xC3, 0x93, 0x68, 0xC3, 0xA3, 0xC3, 0xAF, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ }
+
+ {
+ size_t dstlen = 7;
+ const unsigned char expected[] = { 0xC3, 0x93, 0x68, 0xC3, 0xA3, 0xC3, 0xAF, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 7u);
+ }
+
+ {
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xC3, 0x93, 0x68, 0xC3, 0xA3, 0xC3, 0xAF, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, nullptr, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ size_t dstlen = 7;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xC3, 0x93, 0x68, 0xC3, 0xA3, 0xC3, 0xAF, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 7u);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ // Specify a destination buffer length of 3. That's exactly enough
+ // space to encode the first two characters, which takes three bytes.
+ size_t dstlen = 3;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xC3, 0x93, 0x68, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 3u);
+ CHECK_EQUAL(numchars, 2u);
+ }
+
+ {
+ // Specify a destination buffer length of 4. That's only enough space
+ // to encode the first two characters, which takes three bytes, because
+ // the third character would take another two bytes.
+ size_t dstlen = 4;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xC3, 0x93, 0x68, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 3u);
+ CHECK_EQUAL(numchars, 2u);
+ }
+
+ {
+ size_t dstlen = 100;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xC3, 0x93, 0x68, 0xC3, 0xA3, 0xC3, 0xAF, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 7u);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ size_t dstlen = 0;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 0u);
+ CHECK_EQUAL(numchars, 0u);
+ }
+
+ // Test with a UTF-16 string, which calls JSFlatString::twoByteChars
+ // to retrieve the characters from the string.
+
+ str = JS_NewUCStringCopyZ(cx, u"\x038C\x0068\x0203\x0457"); // u"Όhȃї"
+ MOZ_RELEASE_ASSERT(str);
+ flatStr = JS_FlattenString(cx, str);
+
+ {
+ const unsigned char expected[] = { 0xCE, 0x8C, 0x68, 0xC8, 0x83, 0xD1, 0x97, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ }
+
+ {
+ size_t dstlen = 7;
+ const unsigned char expected[] = { 0xCE, 0x8C, 0x68, 0xC8, 0x83, 0xD1, 0x97, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 7u);
+ }
+
+ {
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xCE, 0x8C, 0x68, 0xC8, 0x83, 0xD1, 0x97, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, nullptr, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ size_t dstlen = 7;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xCE, 0x8C, 0x68, 0xC8, 0x83, 0xD1, 0x97, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 7u);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ // Specify a destination buffer length of 3. That's exactly enough
+ // space to encode the first two characters, which takes three bytes.
+ size_t dstlen = 3;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xCE, 0x8C, 0x68, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 3u);
+ CHECK_EQUAL(numchars, 2u);
+ }
+
+ {
+ // Specify a destination buffer length of 4. That's only enough space
+ // to encode the first two characters, which takes three bytes, because
+ // the third character would take another two bytes.
+ size_t dstlen = 4;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xCE, 0x8C, 0x68, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 3u);
+ CHECK_EQUAL(numchars, 2u);
+ }
+
+ {
+ size_t dstlen = 100;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0xCE, 0x8C, 0x68, 0xC8, 0x83, 0xD1, 0x97, 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 7u);
+ CHECK_EQUAL(numchars, 4u);
+ }
+
+ {
+ size_t dstlen = 0;
+ size_t numchars = 0;
+ const unsigned char expected[] = { 0x1 };
+ memset(actual, 0x1, 100);
+ JS::DeflateStringToUTF8Buffer(flatStr, range, &dstlen, &numchars);
+ CHECK_EQUAL(memcmp(actual, expected, sizeof(expected)), 0);
+ CHECK_EQUAL(dstlen, 0u);
+ CHECK_EQUAL(numchars, 0u);
+ }
+
+ return true;
+}
+END_TEST(test_DeflateStringToUTF8Buffer)
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 00:50:14 +0000