Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/bintrees/test/scripts/gen_test.js

@@ -0,0 +1,38 @@
+// generates a test case to STDOUT
+
+var no_dups = false; // set to true if you don't want duplicate inserts
+var num_inserts = 100000;
+
+function randInt(start, end) {
+    return Math.floor(Math.random()*(end-start + 1)) + start;
+}
+
+function get_node_to_remove() {
+    var idx = randInt(0, added.length - 1);
+    return added.splice(idx, 1)[0];
+}
+
+
+var nums = [];
+var added = [];
+var ahash = {};
+for(var i=0; i < num_inserts; i++) {
+    do {
+        var n = randInt(1, 1000000000);
+    } while(no_dups && ahash[n]);
+    added.push(n);
+    nums.push(n);
+    if(no_dups)
+        ahash[n] = true;
+
+    if(Math.random() < .3) {
+        // remove a node
+        nums.push(-get_node_to_remove());
+    }
+}
+
+// remove the rest, randomly
+while(added.length > 0)
+    nums.push(-get_node_to_remove());
+
+console.log(nums.join('\n'));