test(e2e): Fix cassandra e2e test (#2548) (#6739) (#6740)

* chore(e2e): Parallelize installation steps

* chore(e2e): Install missing dependencies

* test(e2e): Improve resiliency of assertions

* CR

(cherry picked from commit e19c5472f9)

# Conflicts:
#	.github/workflows/enos-run.yml

Co-authored-by: Michael Li <michael.li@hashicorp.com>

enos/modules/test_e2e_docker/test.sh

@@ -22,21 +22,11 @@ apt install unzip pass lsb-release postgresql-client default-mysql-client wget a
 
 # Function to install Cassandra
 install_cassandra() {
-  # Add Cassandra repository key
-  wget -O cassandra.keys https://www.apache.org/dist/cassandra/KEYS
-
-  # Convert key to gpg format
-  gpg --no-default-keyring --keyring ./temp-keyring.gpg --import cassandra.keys
-  gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output cassandra.gpg
-  rm ./temp-keyring.gpg cassandra.keys
-  mv cassandra.gpg /etc/apt/keyrings/cassandra.gpg
-
-  # Add Cassandra repository
-  echo "deb [signed-by=/etc/apt/keyrings/cassandra.gpg] https://debian.cassandra.apache.org 41x main" | tee -a /etc/apt/sources.list.d/cassandra.sources.list
-
-  # Update package list and install Cassandra
-  apt update
-  apt install cassandra -y
+  apt install -y python3-venv
+  python3 -m venv "$HOME/cqlsh-venv"
+  "$HOME/cqlsh-venv/bin/pip" install --upgrade pip
+  "$HOME/cqlsh-venv/bin/pip" install cqlsh
+  export PATH="$HOME/cqlsh-venv/bin:$PATH"
 }
 
 # Install Cassandra

testing/internal/e2e/tests/base/target_tcp_connect_cassandra_test.go

@@ -120,8 +120,11 @@ func TestCliTcpTargetConnectCassandra(t *testing.T) {
 	output := buf.String()
 	t.Logf("Cassandra session output: %s", output)
 
-	require.Contains(t, output, "keyspace_name")
-	require.Contains(t, output, keyspace)
+	// Note: Additional assertions can be tricky due to output containing \r\n
+	// and \b characters. The following assertions should be sufficient to prove
+	// that commands were executed successfully
+	require.Contains(t, output, "system_schema") // output of DESCRIBE KEYSPACES
+	require.Contains(t, output, "(1 rows)")      // output of SELECT query
 
 	t.Log("Successfully connected to Cassandra target")
 }