Testing: Add Python-based integration tests

README/doctests have problems on Windows, so this is meant as an
alternative.

tests/test_integration_python.py

@@ -0,0 +1,86 @@
+import subprocess
+import sys
+import unittest
+
+from tests.integration_util import node, setup, teardown, translate
+
+
+def setUpModule():
+    node.start()
+    assert node.http_host, "http_url must be available"
+
+
+def tearDownModule():
+    node.stop()
+
+
+class IntegrationTest(unittest.TestCase):
+    """
+    Integration tests defined as Python code, derived from README doctest code.
+
+    Rationale: Currently, running the README doctests on
+               Windows trips, and hasn't been resolved yet.
+    """
+    def setUp(self) -> None:
+        """
+        Provision tables.
+        """
+        setup()
+
+    def tearDown(self) -> None:
+        """
+        Destroy tables.
+        """
+        teardown()
+
+    def cmd(self, command: str):
+        """
+        Invoke a shell command.
+        """
+        return subprocess.check_call(translate(command), shell=True)
+
+    def test_connectivity(self):
+        command = "cr8 timeit --hosts localhost:4200"
+        self.cmd(command)
+
+    def test_sys_cluster(self):
+        command = "echo 'SELECT * FROM sys.cluster;' | cr8 timeit --hosts localhost:4200"
+        self.cmd(command)
+
+    def test_sys_summits(self):
+        command = "echo 'SELECT * FROM sys.summits ORDER BY height DESC LIMIT 3;' | cr8 timeit --hosts localhost:4200"
+        self.cmd(command)
+
+    def test_insert_fake_data(self):
+        command = "cr8 insert-fake-data --hosts localhost:4200 --table x.demo --num-records 200"
+        self.cmd(command)
+
+    def test_insert_json(self):
+        command = "cat tests/demo.json | cr8 insert-json --table x.demo --hosts localhost:4200"
+        self.cmd(command)
+
+    def test_insert_json_print(self):
+        command = """echo '{"name": "Arthur"}' | cr8 insert-json --table mytable"""
+        self.cmd(command)
+
+    def test_insert_from_sql(self):
+        command = "cr8 insert-fake-data --hosts localhost:4200 --table x.demo --num-records 200"
+        self.cmd(command)
+        command = "echo 'REFRESH TABLE x.demo;' | cr8 timeit --hosts localhost:4200"
+        self.cmd(command)
+        command = """
+        cr8 insert-from-sql \
+          --src-uri "postgresql://crate@localhost:5432/doc" \
+          --query "SELECT name FROM x.demo" \
+          --hosts localhost:4200 \
+          --table y.demo
+        """
+        self.cmd(command)
+
+    def test_run_spec_toml(self):
+        command = "cr8 run-spec specs/sample.toml localhost:4200 -r localhost:4200"
+        self.cmd(command)
+
+    def test_run_spec_python(self):
+        command = "cr8 run-spec specs/sample.py localhost:4200"
+        self.cmd(command)