1 files changed, 86 insertions, 0 deletions
diff --git a/src/lib/util/tests/file_utilities_unittest.cc b/src/lib/util/tests/file_utilities_unittest.cc
new file mode 100644
index 0000000..4ee9093
--- /dev/null
+++ b/src/lib/util/tests/file_utilities_unittest.cc
@@ -0,0 +1,86 @@
+// Copyright (C) 2015-2022 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 <util/file_utilities.h>
+#include <gtest/gtest.h>
+#include <fstream>
+
+using namespace isc;
+using namespace isc::util::file;
+using namespace std;
+
+namespace {
+
+/// @brief Test fixture class for testing operations on files.
+class FileUtilTest : public ::testing::Test {
+public:
+
+    /// @brief Destructor.
+    ///
+    /// Deletes the test file if any.
+    virtual ~FileUtilTest();
+};
+
+FileUtilTest::~FileUtilTest() {
+    string test_file_name = string(TEST_DATA_BUILDDIR) + "/fu.test";
+    static_cast<void>(remove(test_file_name.c_str()));
+}
+
+/// @brief Check an error is returned by getContent on not existent file.
+TEST_F(FileUtilTest, notExists) {
+    string file_name("/this/does/not/exists");
+    try {
+        string c = getContent(file_name);
+        FAIL() << "this test must throw before this line";
+    } catch (const BadValue& ex) {
+        string expected = "can't open file '" + file_name;
+        expected += "': No such file or directory";
+        EXPECT_EQ(string(ex.what()), expected);
+    } catch (const std::exception& ex) {
+        FAIL() << "unexpected exception: " << ex.what();
+    }
+}
+
+/// @note No easy can't stat.
+
+/// @brief Check an error is returned by getContent on not regular file.
+TEST_F(FileUtilTest, notRegular) {
+    string file_name("/");
+    try {
+        string c = getContent(file_name);
+        FAIL() << "this test must throw before this line";
+    } catch (const BadValue& ex) {
+        string expected = "'" + file_name + "' must be a regular file";
+        EXPECT_EQ(string(ex.what()), expected);
+    } catch (const std::exception& ex) {
+        FAIL() << "unexpected exception: " << ex.what();
+    }
+}
+
+/// @brief Check getContent works.
+TEST_F(FileUtilTest, basic) {
+    string file_name = string(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(content = getContent(file_name));
+    EXPECT_EQ("abdc", content);
+}
+
+/// @brief Check isDir works.
+TEST_F(FileUtilTest, isDir) {
+    EXPECT_TRUE(isDir("/dev"));
+    EXPECT_FALSE(isDir("/dev/null"));
+    EXPECT_FALSE(isDir("/this/does/not/exists"));
+    EXPECT_FALSE(isDir("/etc/hosts"));
+}
+
+}