Adds test-runtime to start working on tests

scripts/build.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# This script assumes that all pre-requisites are installed.
+
+set -e
+
+PROJECT_ROOT=`git rev-parse --show-toplevel`
+source `dirname "$0"`/common.sh
+
+export CARGO_INCREMENTAL=0
+
+# Save current directory.
+pushd .
+
+cd $ROOT
+
+for SRC in "${SRCS[@]}"
+do
+  echo "*** Building wasm binaries in $SRC"
+  cd "$PROJECT_ROOT/$SRC"
+
+  ./build.sh
+
+  cd - >> /dev/null
+done
+
+# Restore initial directory.
+popd

scripts/common.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+ROOT=`dirname "$0"`
+
+# A list of directories which contain wasm projects.
+SRCS=(
+	"runtime/test-runtime/wasm"
+)
+
+# Make pushd/popd silent.
+
+pushd () {
+	command pushd "$@" > /dev/null
+}
+
+popd () {
+	command popd "$@" > /dev/null
+}