!1750 zlib ndk xts

Merge pull request !1750 from dujingcheng/ndkxts

appexecfwk/BUILD.gn

@@ -16,6 +16,9 @@ import("//build/ohos_var.gni")
 group("appexecfwk") {
   testonly = true
   if (is_standard_system) {
-    deps = [ "bundle_standard:bundle_standard" ]
+    deps = [
+      "bundle_standard:bundle_standard",
+      "zlibtest/zlibcpptest:ZlibCppTest",
+    ]
   }
 }

appexecfwk/zlibtest/zlibcpptest/BUILD.gn

+# Copyright (c) 2020-2021 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//test/xts/tools/build/suite.gni")
+module_output_path = "hits/ZlibCppTest"
+
+ohos_moduletest_suite("ZlibCppTest") {
+  module_out_path = module_output_path
+  sources = [ "ZlibCppTest.cpp" ]
+  configs = [ "//third_party/zlib:zlib_config" ]
+  public_configs = [ "//third_party/zlib:zlib_public_config" ]
+  deps = [ "//third_party/zlib:libz" ]
+}

appexecfwk/zlibtest/zlibcpptest/Test.json

+{
+    "description": "Config for zlib test cases",
+    "driver": {
+        "module-name": "ZlibCppTest",
+        "native-test-timeout": "120000",
+        "native-test-device-path": "/data/local/tmp",
+        "runtime-hint": "1s",
+        "type": "CppTest"
+    },
+    "kits": [
+        {
+            "post-push" : [
+                "chmod -R 777 /data/local/tmp/*"
+            ],
+            "push": [
+                "ZlibCppTest->/data/local/tmp/ZlibCppTest"
+            ],
+            "type": "PushKit"
+        }
+    ]
+}
\ No newline at end of file

appexecfwk/zlibtest/zlibcpptest/ZlibCppTest.cpp

+/**
+ * Copyright (c) 2020-2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include <cstdio>
+#include <cstdlib>
+#include <fstream>
+#include <gtest/gtest.h>
+#include <sstream>
+#include <string>
+
+#include "zlib.h"
+
+using namespace std;
+using namespace testing::ext;
+namespace {
+static const char DICTIONARY[] = "hello";
+static const char GARBAGE[] = "garbage";
+static const char TESTFILE[] = "foo.gz";
+static char HELLO[] = "hello, hello!";
+static unsigned int CALLOC_SIZE = 1;
+static int FOUR = 4;
+static int SIX = 6;
+static int EIGHT = 8;
+}
+
+class ZlibCppTest : public testing::Test {
+protected:
+    ZlibCppTest();
+    ~ZlibCppTest();
+    static void SetUpTestCase();
+    static void TearDownTestCase();
+};
+
+ZlibCppTest::ZlibCppTest()
+{}
+
+ZlibCppTest::~ZlibCppTest()
+{}
+
+void ZlibCppTest::SetUpTestCase()
+{}
+
+void ZlibCppTest::TearDownTestCase()
+{}
+
+/**
+ * @tc.number    : ZlibCppTest_0100
+ * @tc.name      : Test compress and uncompress test
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestCompress, Function | MediumTest | Level2)
+{
+#ifdef Z_SOLO
+    fprintf(stderr, "*********ZlibCppTestCompress Z_SOLO**********\n");
+#else
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000 * sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    uncompr = static_cast<Byte*>(calloc(static_cast<uInt>(uncomprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL && uncompr != Z_NULL);
+
+    int err;
+    uLong len = static_cast<uLong>(strlen(HELLO)) + 1;
+    err = compress(compr, &comprLen, reinterpret_cast<const Bytef*>(HELLO), len);
+    fprintf(stderr, "compress error: %d\n", err);
+    ASSERT_EQ(err, Z_OK);
+
+    strcpy(reinterpret_cast<char *>(uncompr), GARBAGE);
+    err = uncompress(uncompr, &uncomprLen, compr, comprLen);
+    fprintf(stderr, "uncompress error: %d\n", err);
+    ASSERT_EQ(err, Z_OK);
+    fprintf(stderr, "uncompress: %s\n", reinterpret_cast<char *>(uncompr));
+    free(compr);
+    free(uncompr);
+#endif
+}
+
+/**
+ * @tc.number    : ZlibCppTest_0200
+ * @tc.name      : Test gzio
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestGzio, Function | MediumTest | Level2)
+{
+#ifdef Z_SOLO
+    fprintf(stderr, "*********ZlibCppTestGzio Z_SOLO**********\n");
+#else
+    int err;
+    int len = static_cast<int>(strlen(HELLO)) + 1;
+    gzFile file;
+    z_off_t pos;
+    file = gzopen(TESTFILE, "wb");
+    ASSERT_TRUE(file != NULL);
+
+    gzputc(file, 'h');
+    ASSERT_TRUE(gzputs(file, "ello") == FOUR);
+    if (gzprintf(file, ", %s!", "hello") != EIGHT) {
+        fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
+        ASSERT_TRUE(false);
+    }
+
+    gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
+    gzclose(file);
+    file = gzopen(TESTFILE, "rb");
+    ASSERT_TRUE(file != NULL);
+
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000 * sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    uncompr = static_cast<Byte*>(calloc(static_cast<uInt>(uncomprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL && uncompr != Z_NULL);
+
+    strcpy(reinterpret_cast<char *>(uncompr), GARBAGE);
+    ASSERT_TRUE(gzread(file, uncompr, static_cast<unsigned>(uncomprLen)) == len);
+    ASSERT_FALSE(strcmp(reinterpret_cast<char *>(uncompr), HELLO));
+
+    pos = gzseek(file, -8L, SEEK_CUR);
+    ASSERT_FALSE(pos != SIX || gztell(file) != pos);
+    ASSERT_FALSE(gzgetc(file) != ' ');
+    ASSERT_FALSE(gzungetc(' ', file) != ' ');
+
+    fprintf(stderr, "gzgets\n");
+    gzgets(file, reinterpret_cast<char *>(uncompr), static_cast<int>(uncomprLen));
+    ASSERT_FALSE(strcmp(reinterpret_cast<char *>(uncompr), HELLO + SIX));
+    gzclose(file);
+    free(compr);
+    free(uncompr);
+#endif
+}
+
+/**
+ * @tc.number    : ZlibCppTest_0300
+ * @tc.name      : Test deflate
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestDeflate, Function | MediumTest | Level2)
+{
+    Byte *compr;
+    uLong comprLen = 10000 * sizeof(int);
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL);
+
+    z_stream c_stream; /* compression stream */
+    int err;
+    uLong len = static_cast<uLong>(strlen(HELLO)) + 1;
+    c_stream.zalloc = nullptr;
+    c_stream.zfree = nullptr;
+    c_stream.opaque = nullptr;
+    err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
+    fprintf(stderr, "deflateInit result: %d\n", err);
+    ASSERT_EQ(err, Z_OK);
+
+    c_stream.next_in  = reinterpret_cast<z_const unsigned char *>(HELLO);
+    c_stream.next_out = compr;
+    fprintf(stderr, "deflate\n");
+    while (c_stream.total_in != len && c_stream.total_out < comprLen) {
+        c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
+        err = deflate(&c_stream, Z_NO_FLUSH);
+        fprintf(stderr, "deflate result: %d\n", err);
+        ASSERT_EQ(err, Z_OK);
+    }
+
+    for (;;) {
+        c_stream.avail_out = 1;
+        err = deflate(&c_stream, Z_FINISH);
+        fprintf(stderr, "deflate result: %d\n", err);
+        if (err == Z_STREAM_END) {
+            break;
+        }
+        ASSERT_EQ(err, Z_OK);
+    }
+
+    err = deflateEnd(&c_stream);
+    fprintf(stderr, "deflateEnd result: %d\n", err);
+    ASSERT_EQ(err, Z_OK);
+    free(compr);
+}
+
+/**
+ * @tc.number    : ZlibCppTest_0400
+ * @tc.name      : Test inflate
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestInflate, Function | MediumTest | Level2)
+{
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000 * sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    uncompr = static_cast<Byte*>(calloc(static_cast<uInt>(uncomprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL && uncompr != Z_NULL);
+
+    int err;
+    z_stream d_stream; /* decompression stream */
+    strcpy(reinterpret_cast<char *>(uncompr), GARBAGE);
+    d_stream.zalloc = nullptr;
+    d_stream.zfree = nullptr;
+    d_stream.opaque = nullptr;
+    d_stream.next_in  = compr;
+    d_stream.avail_in = 0;
+    d_stream.next_out = uncompr;
+    err = inflateInit(&d_stream);
+    fprintf(stderr, "inflateInit result: %d\n", err);
+    ASSERT_EQ(err, Z_OK);
+
+    while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
+        d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END || err == Z_DATA_ERROR) {
+            break;
+        }
+        fprintf(stderr, "inflate result: %d\n", err);
+        ASSERT_EQ(err, Z_OK);
+    }
+
+    fprintf(stderr, "inflateEnd result: %d\n", inflateEnd(&d_stream));
+    free(compr);
+    free(uncompr);
+}
+
+/**
+ * @tc.number    : ZlibCppTest_0500
+ * @tc.name      : Test deflate with large buffers and dynamic change of compression level
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestLargeDeflate, Function | MediumTest | Level2)
+{
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000 * sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    uncompr = static_cast<Byte*>(calloc(static_cast<uInt>(uncomprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL && uncompr != Z_NULL);
+
+    z_stream c_stream; /* compression stream */
+    int err;
+    c_stream.zalloc = nullptr;
+    c_stream.zfree = nullptr;
+    c_stream.opaque = nullptr;
+
+    err = deflateInit(&c_stream, Z_BEST_SPEED);
+    fprintf(stderr, "deflateInit result: %d\n", err);
+    ASSERT_EQ(err, Z_OK);
+
+    c_stream.next_out = compr;
+    c_stream.avail_out = static_cast<uInt>(comprLen);
+
+    /* At this point, uncompr is still mostly zeroes, so it should compress
+     * very well:
+     */
+    c_stream.next_in = uncompr;
+    c_stream.avail_in = static_cast<uInt>(uncomprLen);
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    fprintf(stderr, "deflate result: %d\n", err);
+    ASSERT_EQ(err, Z_OK);
+    ASSERT_TRUE(c_stream.avail_in == 0);
+
+    /* Feed in already compressed data and switch to no compression: */
+    deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
+    c_stream.next_in = compr;
+    c_stream.avail_in = static_cast<uInt>(comprLen) / 2;
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    fprintf(stderr, "deflate result: %d\n", err);
+    ASSERT_EQ(err, Z_OK);
+
+    /* Switch back to compressing mode: */
+    deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
+    c_stream.next_in = uncompr;
+    c_stream.avail_in = static_cast<uInt>(uncomprLen);
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    ASSERT_EQ(err, Z_OK);
+
+    err = deflate(&c_stream, Z_FINISH);
+    ASSERT_EQ(err, Z_STREAM_END);
+
+    err = deflateEnd(&c_stream);
+    ASSERT_EQ(err, Z_OK);
+    free(compr);
+    free(uncompr);
+}
+
+/**
+ * @tc.number    : ZlibCppTest_0600
+ * @tc.name      : Test inflate with large buffers
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestLargeInflate, Function | MediumTest | Level2)
+{
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000 * sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    uncompr = static_cast<Byte*>(calloc(static_cast<uInt>(uncomprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL && uncompr != Z_NULL);
+
+    int err;
+    z_stream d_stream; /* decompression stream */
+    strcpy(reinterpret_cast<char *>(uncompr), GARBAGE);
+    d_stream.zalloc = nullptr;
+    d_stream.zfree = nullptr;
+    d_stream.opaque = nullptr;
+    d_stream.next_in  = compr;
+    d_stream.avail_in = static_cast<uInt>(comprLen);
+    err = inflateInit(&d_stream);
+    ASSERT_EQ(err, Z_OK);
+
+    for (;;) {
+        d_stream.next_out = uncompr;            /* discard the output */
+        d_stream.avail_out = static_cast<uInt>(uncomprLen);
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END || err == Z_DATA_ERROR) {
+            break;
+        }
+        ASSERT_EQ(err, Z_OK);
+    }
+
+    err = inflateEnd(&d_stream);
+    ASSERT_EQ(err, Z_OK);
+    free(compr);
+    free(uncompr);
+}
+
+/**
+ * @tc.number    : ZlibCppTest_0700
+ * @tc.name      : Test deflate with full flush
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestFlush, Function | MediumTest | Level2)
+{
+    Byte *compr;
+    uLong comprLen = 10000 * sizeof(int);
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL);
+
+    z_stream c_stream; /* compression stream */
+    int err;
+    uInt len = static_cast<uInt>(strlen(HELLO)) + 1;
+    c_stream.zalloc = nullptr;
+    c_stream.zfree = nullptr;
+    c_stream.opaque = nullptr;
+    err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
+    ASSERT_EQ(err, Z_OK);
+
+    c_stream.next_in  = reinterpret_cast<z_const unsigned char *>(HELLO);
+    c_stream.next_out = compr;
+    c_stream.avail_in = 3;
+    c_stream.avail_out = static_cast<uInt>(comprLen);
+    err = deflate(&c_stream, Z_FULL_FLUSH);
+    ASSERT_EQ(err, Z_OK);
+
+    compr[3]++; /* force an error in first compressed block */
+    c_stream.avail_in = len - 3;
+    err = deflate(&c_stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        ASSERT_EQ(err, Z_OK);
+    }
+
+    err = deflateEnd(&c_stream);
+    ASSERT_EQ(err, Z_OK);
+    comprLen = c_stream.total_out;
+    free(compr);
+}
+
+/**
+ * @tc.number    : ZlibCppTest_0800
+ * @tc.name      : Test inflateSync
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestSync, Function | MediumTest | Level2)
+{
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000 * sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    uncompr = static_cast<Byte*>(calloc(static_cast<uInt>(uncomprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL && uncompr != Z_NULL);
+
+    int err;
+    z_stream d_stream; /* decompression stream */
+    strcpy(reinterpret_cast<char *>(uncompr), GARBAGE);
+    d_stream.zalloc = nullptr;
+    d_stream.zfree = nullptr;
+    d_stream.opaque = nullptr;
+    d_stream.next_in  = compr;
+    d_stream.avail_in = 2; /* just read the zlib header */
+    err = inflateInit(&d_stream);
+    ASSERT_EQ(err, Z_OK);
+
+    d_stream.next_out = uncompr;
+    d_stream.avail_out = static_cast<uInt>(uncomprLen);
+
+    inflate(&d_stream, Z_NO_FLUSH);
+    d_stream.avail_in = static_cast<uInt>(comprLen) - 2;   /* read all compressed data */
+    inflateSync(&d_stream);
+    inflate(&d_stream, Z_FINISH);
+    inflateEnd(&d_stream);
+    printf("after inflateSync: hel%s\n", reinterpret_cast<char *>(uncompr));
+    free(compr);
+    free(uncompr);
+}
+
+/**
+ * @tc.number    : ZlibCppTest_0900
+ * @tc.name      : Test deflate with preset dictionary
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestDictDeflate, Function | MediumTest | Level2)
+{
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000 * sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    uncompr = static_cast<Byte*>(calloc(static_cast<uInt>(uncomprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL && uncompr != Z_NULL);
+
+    z_stream c_stream; /* compression stream */
+    int err;
+    c_stream.zalloc = nullptr;
+    c_stream.zfree = nullptr;
+    c_stream.opaque = nullptr;
+    err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
+    ASSERT_EQ(err, Z_OK);
+
+    err = deflateSetDictionary(&c_stream,
+                reinterpret_cast<const Bytef*>(DICTIONARY), static_cast<int>(sizeof(DICTIONARY)));
+    ASSERT_EQ(err, Z_OK);
+
+    c_stream.next_out = compr;
+    c_stream.avail_out = static_cast<uInt>(comprLen);
+    c_stream.next_in  = reinterpret_cast<z_const unsigned char *>(HELLO);
+    c_stream.avail_in = static_cast<uInt>(strlen(HELLO)) + 1;
+    err = deflate(&c_stream, Z_FINISH);
+    ASSERT_EQ(err, Z_STREAM_END);
+
+    err = deflateEnd(&c_stream);
+    ASSERT_EQ(err, Z_OK);
+    free(compr);
+    free(uncompr);
+}
+
+/**
+ * @tc.number    : ZlibCppTest_1000
+ * @tc.name      : Test inflate with a preset dictionary
+ * @tc.desc      : [C- SOFTWARE -0200]
+ */
+HWTEST_F(ZlibCppTest, ZlibCppTestDictInflate, Function | MediumTest | Level2)
+{
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000 * sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    compr = static_cast<Byte*>(calloc(static_cast<uInt>(comprLen), CALLOC_SIZE));
+    uncompr = static_cast<Byte*>(calloc(static_cast<uInt>(uncomprLen), CALLOC_SIZE));
+    ASSERT_TRUE(compr != Z_NULL && uncompr != Z_NULL);
+
+    int err;
+    z_stream d_stream; /* decompression stream */
+    strcpy(reinterpret_cast<char *>(uncompr), GARBAGE);
+    d_stream.zalloc = nullptr;
+    d_stream.zfree = nullptr;
+    d_stream.opaque = nullptr;
+    d_stream.next_in  = compr;
+    d_stream.avail_in = static_cast<uInt>(comprLen);
+    err = inflateInit(&d_stream);
+    ASSERT_EQ(err, Z_OK);
+    d_stream.next_out = uncompr;
+    d_stream.avail_out = static_cast<uInt>(uncomprLen);
+    for (;;) {
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END) {
+            break;
+        }
+        if (err == Z_NEED_DICT) {
+            err = inflateSetDictionary(
+                &d_stream, reinterpret_cast<const Bytef*>(DICTIONARY), static_cast<int>(sizeof(DICTIONARY)));
+        }
+        if (err == Z_DATA_ERROR) {
+            break;
+        }
+        ASSERT_EQ(err, Z_OK);
+    }
+
+    err = inflateEnd(&d_stream);
+    ASSERT_EQ(err, Z_OK);
+    if (strcmp(reinterpret_cast<char *>(uncompr), HELLO)) {
+        fprintf(stderr, "bad inflate with dict\n");
+    } else {
+        printf("inflate with dictionary: %s\n", reinterpret_cast<char *>(uncompr));
+    }
+
+    free(compr);
+    free(uncompr);
+}
\ No newline at end of file