Add testing script

meta/README.md

@@ -3,7 +3,14 @@
 This folder is ignored via the `.genignore` file. It contains meta files
 that should not make it into the generated project.
 
-In particular, it is used for an appveyor CI script that runs on `cosmwasm-template`
+In particular, it is used for an AppVeyor CI script that runs on `cosmwasm-template`
 itself (running the cargo-generate script, then testing the generated project).
 The `.circleci` directory contains a script destined for any projects created from
 this template.
+
+## Files
+
+- `appveyor.yml`: The AppVeyor CI configuration
+- `test_generate.sh`: A script for generating a project from the template and
+  runnings builds and tests in it. This works almost like the CI script but
+  targets local UNIX-like dev environments.

meta/test_generate.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+set -o errexit -o nounset -o pipefail
+command -v shellcheck > /dev/null && shellcheck "$0"
+
+REPO_ROOT="$(realpath "$(dirname "$0")/..")"
+
+TMP_DIR=$(mktemp -d "${TMPDIR:-/tmp}/cosmwasm-template.XXXXXXXXX")
+
+(
+  echo "Navigating to $TMP_DIR"
+  cd "$TMP_DIR"
+
+  GIT_BRANCH=$(git -C "$REPO_ROOT" branch --show-current)
+
+  echo "Generating project from local repository (branch $GIT_BRANCH) ..."
+  cargo generate --git "$REPO_ROOT" --name test-generation --branch "$GIT_BRANCH"
+
+  (
+    cd test-generation
+    echo "This is what was generated"
+    ls -lA
+
+    echo "Building wasm ..."
+    cargo wasm
+    echo "Running tests ..."
+    cargo unit-test
+    cargo integration-test
+    echo "Creating schema ..."
+    cargo schema
+  )
+)