Running and Verification

Procedure

Obtain the built-in test cases.

cd /path/to/
git clone https://github.com/crystal-lang/crystal.git

Run Crystal using a container.

docker run -it 84codes/crystal:latest-fedora-37

View the container ID.
```
docker ps -a
```
If CONTAINER ID is displayed in the command output, the container is running properly.

Export the container and import the test case to re-create a container.

docker export caf67ade6d37 > crystal.tar
mkdir crystal-example
tar xf crystal.tar -C crystal-example
rm -rf crystal.tar
cp -r crystal/samples/* crystal-example/home
cd crystal-example
tar cf crystal.tar *

Import the container.
```
docker import - crystal:example < crystal.tar
docker images
```
If the following information is displayed, the import is successful.
Use Crystal to run the binary-trees.cr, red_black_tree.cr, and pig.cr test cases.
```
docker run -it crystal:example /usr/bin/crystal run /home/binary-trees.cr
```
If the following information is displayed, the running is successful.
```
docker run -it crystal:example /usr/bin/crystal run /home/red_black_tree.cr
```
If the following information is displayed, the running is successful.
```
docker run -it crystal:example /usr/bin/crystal run /home/pig.cr
```
If the following information is displayed, the running is successful.

Parent topic: Crystal 1.7.2 Porting Guide (Kylin V10)