Reorganize test dir to ensure test of installed pkg

tests/lib/sim_testcase.py

@@ -0,0 +1,74 @@
+from typing import List
+import os
+import jinja2 as jj
+
+from .sv_line_anchor import SVLineAnchor
+
+from .simulators.questa import Questa
+from .simulators import StubSimulator
+
+from .base_testcase import BaseTestCase
+
+SIM_CLS = Questa
+if os.environ.get("STUB_SIMULATOR", False):
+    SIM_CLS = StubSimulator
+
+
+class SimTestCase(BaseTestCase):
+    #: Abort test if it exceeds this number of clock cycles
+    timeout_clk_cycles = 5000
+
+    simulator_cls = SIM_CLS
+
+    @classmethod
+    def _generate_tb(cls):
+        """
+        Render the testbench template into actual tb.sv
+        """
+        template_root_path = os.path.join(os.path.dirname(__file__), "..")
+        loader = jj.FileSystemLoader(
+            template_root_path
+        )
+        jj_env = jj.Environment(
+            loader=loader,
+            undefined=jj.StrictUndefined,
+            extensions=[SVLineAnchor],
+        )
+
+        context = {
+            "cls": cls,
+            "exporter": cls.exporter,
+        }
+
+        # template path needs to be relative to the Jinja loader root
+        template_path = os.path.join(cls.get_testcase_dir(), "tb_template.sv")
+        template_path = os.path.relpath(template_path, template_root_path)
+        template = jj_env.get_template(template_path)
+
+        output_path = os.path.join(cls.get_run_dir(), "tb.sv")
+        stream = template.stream(context)
+        stream.dump(output_path)
+
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+        # Create testbench from template
+        cls._generate_tb()
+
+        simulator = cls.simulator_cls(testcase_cls=cls)
+
+        # cd into the build directory
+        cwd = os.getcwd()
+        os.chdir(cls.get_run_dir())
+        try:
+            simulator.compile()
+        finally:
+            # cd back
+            os.chdir(cwd)
+
+
+    def run_test(self, plusargs:List[str] = None) -> None:
+        simulator = self.simulator_cls(testcase_cls_inst=self)
+        simulator.run(plusargs)