Move t -> tests

tests/init.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+ME_=$(basename $0)
+
+framework_failure_() {
+	exit 99
+}
+
+compare() {
+  f1=${1:?file1 required}
+  f2=${2:?file2 required}
+
+  if cmp -s -- "$f1" "$f2" 2>/dev/null; then
+    return 0  # identical
+  fi
+
+  if diff -u -- "$f1" "$f2" 2>/dev/null; then
+    return 0
+  else
+    if diff -- "$f1" "$f2" 2>/dev/null; then
+      return 0
+    else
+      return 1
+    fi
+  fi
+}