Additional tools for gardening.

tools/gardening_tools/multitest/bin/multitest.dart

Index: tools/gardening_tools/multitest/bin/multitest.dart
diff --git a/tools/gardening_tools/multitest/bin/multitest.dart b/tools/gardening_tools/multitest/bin/multitest.dart
new file mode 100644
index 0000000000000000000000000000000000000000..7a79ae8e7b34772a0d1d33e81757de31845b4409
--- /dev/null
+++ b/tools/gardening_tools/multitest/bin/multitest.dart
@@ -0,0 +1,40 @@
+import 'package:multitest/multitest.dart';
+import 'package:base_lib/base_lib.dart';
+
+void printHelp() {
+  print("This tool can print out individual cases from a multitest test file.");
+  print("example: multitest.dart <test_file> <case>");
+}
+
+main(List<String> args) {
+  if (args.length == 0 || args.indexOf("--help") > -1) {
+    printHelp();
+    return;
+  }
+
+  if (args.length != 2) {
+    print(
+        "Incorrect number of arguments. use --help to see available commands.");
+    return;
+  }
+
+  StdOutLogger logger = new StdOutLogger();
+
+  Try<ExtractMultitestResult> result = new Try<String>.from(args[0])
+      .bind((path) => ExtractTestsFromMultitest(path, logger));
+
+  if (result.isError()) {
+    print(result.getError());
+    return;
+  }
+
+  if (!result.get().tests.containsKey(args[1])) {
+    print(
+        "Could not find the case ${args[0]}. The available cases are: ${result.get().tests.keys.join(', ')}");
+    return;
+  }
+  ;
+
+  print(result.get().tests[args[1]]);
+  return;
+}