Move temporary files to standard path in IncBackupBackwardCompatibilityTest.

1 files changed, 35 insertions, 0 deletions

diff --git a/src/test/java/com/keuin/kbackupfabric/TestUtils.java b/src/test/java/com/keuin/kbackupfabric/TestUtils.java
new file mode 100644
index 0000000..ea98ca1
--- /dev/null
+++ b/src/test/java/com/keuin/kbackupfabric/TestUtils.java
@@ -0,0 +1,35 @@
+package com.keuin.kbackupfabric;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Paths;
+
+public class TestUtils {
+
+    public static String getTempDirectory(String subDirectory) throws IOException {
+        String testTempPath;
+        String path = System.getenv("KB_TEMP_DIR");
+        if (path == null || path.isEmpty() || !new File(path).isDirectory()) {
+            path = findTempPath();
+        }
+        return Paths.get(path, subDirectory).toString();
+    }
+
+    private static String findTempPath() throws IOException {
+        String path;
+        if (System.getProperty("os.name").startsWith("Windows")) {
+            // Windows
+            path = System.getProperty("java.io.tmpdir");
+        } else {
+            // Unix
+            path = System.getenv("XDG_RUNTIME_DIR");
+            if (!new File(path).isDirectory()) {
+                path = "/tmp";
+            }
+        }
+        if (!new File(path).isDirectory()) {
+            throw new IOException("Cannot find suitable temporary path");
+        }
+        return path;
+    }
+}