1 files changed, 125 insertions, 0 deletions
diff --git a/src/lib/util/tests/filesystem_unittests.cc b/src/lib/util/tests/filesystem_unittests.cc
new file mode 100644
index 0000000..548070a
--- /dev/null
+++ b/src/lib/util/tests/filesystem_unittests.cc
@@ -0,0 +1,125 @@
+// Copyright (C) 2015-2024 Internet Systems Consortium, Inc. ("ISC")
+//
+// 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 <config.h>
+
+#include <exceptions/exceptions.h>
+#include <testutils/gtest_utils.h>
+#include <util/filesystem.h>
+
+#include <fstream>
+#include <string>
+
+#include <gtest/gtest.h>
+
+using namespace isc;
+using namespace isc::util::file;
+using namespace std;
+
+namespace {
+
+/// @brief Test fixture class for testing operations on files.
+struct FileUtilTest : ::testing::Test {
+    /// @brief Destructor.
+    ///
+    /// Deletes the test file if any.
+    virtual ~FileUtilTest() {
+        string test_file_name(TEST_DATA_BUILDDIR "/fu.test");
+        static_cast<void>(remove(test_file_name.c_str()));
+    }
+};
+
+/// @brief Check that an error is returned by getContent on non-existent file.
+TEST_F(FileUtilTest, notExist) {
+    EXPECT_THROW_MSG(getContent("/does/not/exist"), BadValue,
+                     "Expected a file at path '/does/not/exist'");
+}
+
+/// @brief Check that an error is returned by getContent on not regular file.
+TEST_F(FileUtilTest, notRegular) {
+    EXPECT_THROW_MSG(getContent("/"), BadValue, "Expected '/' to be a regular file");
+}
+
+/// @brief Check getContent.
+TEST_F(FileUtilTest, getContent) {
+    string file_name(TEST_DATA_BUILDDIR "/fu.test");
+    ofstream fs(file_name.c_str(), ofstream::out | ofstream::trunc);
+    ASSERT_TRUE(fs.is_open());
+    fs << "abdc";
+    fs.close();
+    string content;
+    EXPECT_NO_THROW_LOG(content = getContent(file_name));
+    EXPECT_EQ("abdc", content);
+}
+
+/// @brief Check isDir.
+TEST_F(FileUtilTest, isDir) {
+    EXPECT_TRUE(isDir("/dev"));
+    EXPECT_FALSE(isDir("/dev/null"));
+    EXPECT_FALSE(isDir("/this/does/not/exist"));
+    EXPECT_FALSE(isDir("/etc/hosts"));
+}
+
+/// @brief Check isFile.
+TEST_F(FileUtilTest, isFile) {
+    EXPECT_TRUE(isFile(ABS_SRCDIR "/filesystem_unittests.cc"));
+    EXPECT_FALSE(isFile(TEST_DATA_BUILDDIR));
+}
+
+/// @brief Check that the components are split correctly.
+TEST(PathTest, components) {
+    // Complete name
+    Path fname("/alpha/beta/gamma.delta");
+    EXPECT_EQ("/alpha/beta/", fname.parentPath());
+    EXPECT_EQ("gamma", fname.stem());
+    EXPECT_EQ(".delta", fname.extension());
+    EXPECT_EQ("gamma.delta", fname.filename());
+}
+
+/// @brief Check replaceExtension.
+TEST(PathTest, replaceExtension) {
+    Path fname("a.b");
+
+    EXPECT_EQ("a", fname.replaceExtension("").str());
+    EXPECT_EQ("a.f", fname.replaceExtension(".f").str());
+    EXPECT_EQ("a.f", fname.replaceExtension("f").str());
+    EXPECT_EQ("a./c/d/", fname.replaceExtension(" /c/d/  ").str());
+    EXPECT_EQ("a.f", fname.replaceExtension("/c/d/e.f").str());
+    EXPECT_EQ("a.f", fname.replaceExtension("e.f").str());
+}
+
+/// @brief Check replaceParentPath.
+TEST(PathTest, replaceParentPath) {
+    Path fname("a.b");
+    EXPECT_EQ("", fname.parentPath());
+    EXPECT_EQ("a.b", fname.str());
+
+    fname.replaceParentPath("/just/some/dir/");
+    EXPECT_EQ("/just/some/dir/", fname.parentPath());
+    EXPECT_EQ("/just/some/dir/a.b", fname.str());
+
+    fname.replaceParentPath("/just/some/dir");
+    EXPECT_EQ("/just/some/dir/", fname.parentPath());
+    EXPECT_EQ("/just/some/dir/a.b", fname.str());
+
+    fname.replaceParentPath("/");
+    EXPECT_EQ("/", fname.parentPath());
+    EXPECT_EQ("/a.b", fname.str());
+
+    fname.replaceParentPath("");
+    EXPECT_EQ("", fname.parentPath());
+    EXPECT_EQ("a.b", fname.str());
+
+    fname = Path("/first/a.b");
+    EXPECT_EQ("/first/", fname.parentPath());
+    EXPECT_EQ("/first/a.b", fname.str());
+
+    fname.replaceParentPath("/just/some/dir");
+    EXPECT_EQ("/just/some/dir/", fname.parentPath());
+    EXPECT_EQ("/just/some/dir/a.b", fname.str());
+}
+
+}  // namespace