add pure-kotlin decoder

PiperOrigin-RevId: 608917286

1 files changed, 35 insertions, 0 deletions

diff --git a/java/org/brotli/dec/TestUtils.java b/java/org/brotli/dec/TestUtils.java
new file mode 100644
index 0000000..797c1d1
--- /dev/null
+++ b/java/org/brotli/dec/TestUtils.java
@@ -0,0 +1,35 @@
+package org.brotli.dec;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Constructor;
+
+/**
+ * Common utility methods.
+ */
+public final class TestUtils {
+
+  public static InputStream newBrotliInputStream(InputStream input) throws IOException {
+    String brotliClass = System.getProperty("BROTLI_INPUT_STREAM");
+    if (brotliClass == null) {
+      return new BrotliInputStream(input);
+    }
+    try {
+      Class<?> clazz = Class.forName(brotliClass);
+      Constructor<?> ctor = clazz.getConstructor(InputStream.class);
+      return (InputStream) ctor.newInstance(new Object[] { input });
+    } catch (Exception e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  static byte[] readUniBytes(String uniBytes) {
+    byte[] result = new byte[uniBytes.length()];
+    for (int i = 0; i < result.length; ++i) {
+      result[i] = (byte) uniBytes.charAt(i);
+    }
+    return result;
+  }
+
+private TestUtils() {}
+}