add tests and ci workflow for running tests

This commit adds tests (using python3 pytest framework):
1. Test basic accel-cmd commands (show version, show stat, etc)
2. Test ipoe shared session up (dhcpv4) without radius
3. Test pppoe discovery (without PADO delay)
4. Test pppoe discovery (without PADO delay)
5. Test pppoe session up (ipv4) without radius
6. Test vlan creation using vlan-mon (pppoe)

These tests require external utils. Please read tests/README.md how to setup
environment, how to run the tests and how to generate coverage report
Also, run-tests.yml contains step-by-step instruction how to run the tests

Signed-off-by: Sergey V. Lobanov <sergey@lobanov.in>

2 files changed, 79 insertions, 0 deletions

diff --git a/tests/accel-cmd/test_cmd_basic.py b/tests/accel-cmd/test_cmd_basic.py
new file mode 100644
index 0000000..c6cdc7a
--- /dev/null
+++ b/tests/accel-cmd/test_cmd_basic.py
@@ -0,0 +1,26 @@
+import pytest
+from common import process
+
+
+def test_accel_cmd_version(accel_cmd):
+    (exit, out, err) = process.run([accel_cmd, "--version"])
+
+    # test that accel-cmd --version exits with code 0, prints
+    # nothing to stdout and prints to stdout
+    assert exit == 0 and err == "" and "accel-cmd " in out and len(out.split(" ")) == 2
+
+
+def test_accel_cmd_non_existent_host(accel_cmd):
+    (exit, out, err) = process.run([accel_cmd, "-Hnon-existent-host", "--verbose"])
+
+    # test that accel-cmd (tried to connecto to non-existent host) exits with code != 0,
+    # prints nothing to stdout and prints an error to stderr
+    assert exit != 0 and out == "" and err != ""
+
+
+def test_accel_cmd_mcast_host(accel_cmd):
+    (exit, out, err) = process.run([accel_cmd, "-H225.0.0.1"])
+
+    # test that accel-cmd (tried to connecto to mcast host) exits with code != 0,
+    # prints nothing to stdout and prints an error to stderr
+    assert exit != 0 and out == "" and err != ""
diff --git a/tests/accel-cmd/test_real_commands.py b/tests/accel-cmd/test_real_commands.py
new file mode 100644
index 0000000..1758b4e
--- /dev/null
+++ b/tests/accel-cmd/test_real_commands.py
@@ -0,0 +1,53 @@
+import pytest
+from common import process
+
+
+@pytest.fixture()
+def accel_pppd_config():
+    return """
+    [modules]
+
+    [log]
+    log-debug=/dev/stdout
+    level=5
+
+    [cli]
+    tcp=127.0.0.1:2001
+    """
+
+
+# test accel-cmd command with started accel-pppd
+def test_accel_cmd_commands(accel_pppd_instance, accel_cmd):
+
+    # test that accel-pppd started successfully
+    assert accel_pppd_instance
+
+    (exit_sh_stat, out_sh_stat, err_sh_stat) = process.run([accel_cmd, "show stat"])
+
+    # test that 'show stat' has no errors and contains 'uptime'
+    assert (
+        exit_sh_stat == 0
+        and len(out_sh_stat) > 0
+        and err_sh_stat == ""
+        and "uptime" in out_sh_stat
+    )
+
+    (exit_sh_ses, out_sh_ses, err_sh_ses) = process.run(
+        [accel_cmd, "show sessions sid,uptime"]
+    )
+    # test that 'show sessions' has no errors and contains 'sid'
+    assert (
+        exit_sh_ses == 0
+        and len(out_sh_ses) > 0
+        and err_sh_ses == ""
+        and "sid" in out_sh_ses
+    )
+
+    (exit_help, out_help, err_help) = process.run([accel_cmd, "help"])
+    # test that 'help' has no errors and contains 'show stat'
+    assert (
+        exit_help == 0
+        and len(out_help) > 0
+        and err_help == ""
+        and "show stat" in out_help
+    )