diff --git a/tests/unit/Testables/Filesystem/RealFileSystemTest.swift b/tests/unit/Testables/Filesystem/RealFileSystemTest.swift
index ce52758..8e9b9a0 100644
--- a/tests/unit/Testables/Filesystem/RealFileSystemTest.swift
+++ b/tests/unit/Testables/Filesystem/RealFileSystemTest.swift
@@ -36,6 +36,30 @@ class RealFileSystemTest: XCTestCase {
         XCTAssertFalse(FileSystem.fileExists(temporaryDirectory))
     }
 
+    func test_directory_can_be_created_symlinked_and_read() {
+        let temporaryDirectory = self.createUniqueTemporaryDirectory()
+
+        let folderPath = "\(temporaryDirectory)/brew/etc/lib/c"
+
+        try! FileSystem.createDirectory(folderPath, withIntermediateDirectories: true)
+
+        XCTAssertTrue(FileSystem.directoryExists("\(temporaryDirectory)/brew"))
+        XCTAssertTrue(FileSystem.directoryExists("\(temporaryDirectory)/brew/etc"))
+        XCTAssertTrue(FileSystem.directoryExists("\(temporaryDirectory)/brew/etc/lib"))
+        XCTAssertTrue(FileSystem.directoryExists("\(temporaryDirectory)/brew/etc/lib/c"))
+
+        _ = system("ln -s \(temporaryDirectory)/brew/etc/lib/c \(temporaryDirectory)/c")
+        XCTAssertTrue(FileSystem.directoryExists("\(temporaryDirectory)/c"))
+        XCTAssertTrue(FileSystem.isSymlink("\(temporaryDirectory)/c"))
+        XCTAssertEqual(
+            try! FileSystem.getDestinationOfSymlink("\(temporaryDirectory)/c"),
+            "\(temporaryDirectory)/brew/etc/lib/c"
+        )
+
+        let contents = try! FileSystem.getShallowContentsOfDirectory("\(temporaryDirectory)/brew/etc/lib/c")
+        XCTAssertEqual([], contents)
+    }
+
     private func createTestBinaryFile(_ temporaryDirectory: String) -> String {
         let executablePath = "\(temporaryDirectory)/exec.sh"
 
@@ -47,6 +71,21 @@ class RealFileSystemTest: XCTestCase {
         return executablePath
     }
 
+
+
+    func test_can_read_file_as_text() {
+        let temporaryDirectory = self.createUniqueTemporaryDirectory()
+        let executable = self.createTestBinaryFile(temporaryDirectory)
+
+        XCTAssertEqual(
+            try! FileSystem.getStringFromFile(executable),
+            """
+            !#/bin/bash
+            echo 'Hello world';
+            """
+        )
+    }
+
     func test_make_binary_executable() {
         let temporaryDirectory = self.createUniqueTemporaryDirectory()
         let executable = self.createTestBinaryFile(temporaryDirectory)
@@ -57,6 +96,15 @@ class RealFileSystemTest: XCTestCase {
         try! FileSystem.makeExecutable(executable)
 
         XCTAssertTrue(FileSystem.isExecutableFile(executable))
+        XCTAssertFalse(FileSystem.isDirectory(executable))
+        XCTAssertFalse(FileSystem.isSymlink(executable))
+    }
+
+    func test_non_existent_file_is_not_symlink_or_directory() {
+        let path = "/path/that/does/not/exist"
+
+        XCTAssertFalse(FileSystem.isDirectory(path))
+        XCTAssertFalse(FileSystem.isSymlink(path))
     }
 
     func test_moving_file() {