diff --git a/tests/path_completion.cpp b/tests/path_completion.cpp
new file mode 100644
index 0000000..cd1a2c6
--- /dev/null
+++ b/tests/path_completion.cpp
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2018 CESNET, https://photonics.cesnet.cz/
+ * Copyright (C) 2018 FIT CVUT, https://fit.cvut.cz/
+ *
+ * Written by Václav Kubernát <kubervac@fit.cvut.cz>
+ *
+*/
+
+#include "trompeloeil_catch.h"
+#include "ast_commands.hpp"
+#include "parser.hpp"
+#include "static_schema.hpp"
+
+TEST_CASE("path_completion")
+{
+    auto schema = std::make_shared<StaticSchema>();
+    schema->addModule("example");
+    schema->addModule("second");
+    schema->addContainer("", "example:ano");
+    schema->addContainer("", "example:anoda");
+    schema->addList("example:ano", "example:listInCont", {"number"});
+    schema->addContainer("", "second:amelie");
+    schema->addContainer("", "example:bota");
+    schema->addContainer("example:ano", "example:a2");
+    schema->addContainer("example:bota", "example:b2");
+    schema->addContainer("example:ano/example:a2", "example:a3");
+    schema->addContainer("example:bota/example:b2", "example:b3");
+    schema->addList("", "example:list", {"number"});
+    schema->addContainer("example:list", "example:contInList");
+    schema->addList("", "example:twoKeyList", {"number", "name"});
+    Parser parser(schema);
+    std::string input;
+    std::ostringstream errorStream;
+    std::set<std::string> expected;
+
+    SECTION("ls ")
+    {
+        input = "ls ";
+        expected = {"example:ano", "example:anoda", "example:bota", "second:amelie", "example:list", "example:twoKeyList"};
+    }
+
+    SECTION("ls e")
+    {
+        input = "ls e";
+        expected = {"xample:ano", "xample:anoda", "xample:bota", "xample:list", "xample:twoKeyList"};
+    }
+
+    SECTION("ls example:ano")
+    {
+        input = "ls example:ano";
+        expected = {"", "da"};
+    }
+
+    SECTION("ls example:ano/example:a")
+    {
+        input = "ls example:ano/example:a";
+        expected = {"2"};
+    }
+
+    SECTION("ls x")
+    {
+        input = "ls x";
+        expected = {};
+    }
+
+    SECTION("ls /")
+    {
+        input = "ls /";
+        expected = {"example:ano", "example:anoda", "example:bota", "second:amelie", "example:list", "example:twoKeyList"};
+    }
+
+    SECTION("ls /e")
+    {
+        input = "ls /e";
+        expected = {"xample:ano", "xample:anoda", "xample:bota", "xample:list", "xample:twoKeyList"};
+    }
+
+    SECTION("ls /s")
+    {
+        input = "ls /s";
+        expected = {"econd:amelie"};
+    }
+
+    SECTION("ls /example:list[number=3]/")
+    {
+        input = "ls /example:list[number=3]/";
+        expected = {"example:contInList"};
+    }
+
+    SECTION("ls /example:list[number=3]/c")
+    {
+        input = "ls /example:list[number=3]/e";
+        expected = {"xample:contInList"};
+    }
+
+    SECTION("ls /example:list[number=3]/a")
+    {
+        input = "ls /example:list[number=3]/a";
+        expected = {};
+    }
+
+    REQUIRE(parser.completeCommand(input, errorStream) == expected);
+}
diff --git a/tests/utils.cpp b/tests/utils.cpp
new file mode 100644
index 0000000..62e4c23
--- /dev/null
+++ b/tests/utils.cpp
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2018 CESNET, https://photonics.cesnet.cz/
+ * Copyright (C) 2018 FIT CVUT, https://fit.cvut.cz/
+ *
+ * Written by Václav Kubernát <kubervac@fit.cvut.cz>
+ *
+*/
+
+#include "trompeloeil_catch.h"
+#include "utils.hpp"
+
+TEST_CASE("utils")
+{
+    SECTION("filterAndErasePrefix")
+    {
+        std::set<std::string> set{"ahoj", "coze", "copak", "aha", "polivka"};
+
+        REQUIRE((filterAndErasePrefix(set, "a") == std::set<std::string>{"hoj", "ha"}));
+        REQUIRE((filterAndErasePrefix(set, "ah") == std::set<std::string>{"oj", "a"}));
+        REQUIRE((filterAndErasePrefix(set, "aho") == std::set<std::string>{"j"}));
+        REQUIRE((filterAndErasePrefix(set, "polivka") == std::set<std::string>{""}));
+        REQUIRE((filterAndErasePrefix(set, "polivka") == std::set<std::string>{""}));
+        REQUIRE((filterAndErasePrefix(set, "polivkax") == std::set<std::string>{}));
+        REQUIRE((filterAndErasePrefix(set, "co") == std::set<std::string>{"pak", "ze"}));
+    }
+
+}