Java: add tests

Author: Jami Cogswell

java/ql/test/query-tests/Metrics/GeneratedVsManualCoverage/GeneratedVsManualCoverage.expected

@@ -0,0 +1 @@
+| org.apache.commons.io | 14 | 1 | 1 | 2 | 18 | 0.5 | 0.06666666666666667 |

java/ql/test/query-tests/Metrics/GeneratedVsManualCoverage/GeneratedVsManualCoverage.qlref

@@ -0,0 +1 @@
+Metrics/Summaries/GeneratedVsManualCoverage.ql

java/ql/test/query-tests/Metrics/GeneratedVsManualCoverage/IOUtils.java

@@ -0,0 +1,24 @@
+package org.apache.commons.io;
+import java.io.*;
+import java.util.*;
+
+public class IOUtils {
+  public static BufferedInputStream buffer(InputStream inputStream) { return null; } // Generated-only summary
+  public static void copy(InputStream input, Writer output, String inputEncoding) throws IOException { } // Generated-only summary
+  public static void copy(Reader input, OutputStream output) throws IOException { } // Generated neutral
+  public static long copyLarge(Reader input, Writer output) throws IOException { return 42; } // Generated-only summary
+  public static int read(InputStream input, byte[] buffer) throws IOException { return 42; } // Generated-only summary
+  public static void readFully(InputStream input, byte[] buffer) throws IOException { } // Generated-only summary
+  public static byte[] readFully(InputStream input, int length) throws IOException { return null; } // Generated-only summary
+  public static List<String> readLines(InputStream input, String encoding) throws IOException { return null; } // Generated-only summary
+  public static InputStream toBufferedInputStream(InputStream input) throws IOException { return null; } // Manual-only summary (generated neutral)
+  public static BufferedReader toBufferedReader(Reader reader) { return null; } // Generated-only summary
+  public static byte[] toByteArray(InputStream input, int size) throws IOException { return null; } // Generated-only summary
+  public static char[] toCharArray(InputStream is, String encoding) throws IOException { return null; } // Generated-only summary
+  public static InputStream toInputStream(String input, String encoding) throws IOException { return null; } // Generated-only summary
+  public static String toString(InputStream input, String encoding) throws IOException { return null; } // Generated-only summary
+  public static void write(char[] data, Writer output) throws IOException { } // Generated-only summary
+  public static void writeChunked(char[] data, Writer output) throws IOException { } // Generated-only summary
+  public static void writeLines(Collection<?> lines, String lineEnding, Writer writer) throws IOException { } // Both
+  public static void noSummary(String string) throws IOException { } // No model
+}