feat: Add synopisis core loop (#166)

Co-authored-by: Michael Neale <michael.neale@gmail.com>

tests/synopsis/test_toolkit.py

@@ -0,0 +1,95 @@
+import os
+import pytest
+from goose.synopsis.toolkit import SynopsisDeveloper
+from goose.synopsis.system import system
+
+
+class MockNotifier:
+    def log(self, message):
+        pass
+
+    def status(self, message):
+        pass
+
+
+@pytest.fixture
+def toolkit(tmpdir):
+    original_cwd = os.getcwd()
+    os.chdir(tmpdir)
+    system.cwd = str(tmpdir)
+    notifier = MockNotifier()
+    toolkit = SynopsisDeveloper(notifier=notifier)
+
+    yield toolkit
+
+    # Teardown: cancel all processes and restore original working directory
+    for process_id in list(system._processes.keys()):
+        system.cancel_process(process_id)
+    os.chdir(original_cwd)
+    system.cwd = original_cwd
+
+
+def test_shell(toolkit, tmpdir):
+    result = toolkit.shell("echo 'Hello, World!'")
+    assert "Hello, World!" in result
+
+
+def test_read_write_file(toolkit, tmpdir):
+    test_file = tmpdir.join("test_file.txt")
+    content = "Test content"
+
+    toolkit.write_file(str(test_file), content)
+    assert test_file.read() == content
+
+    result = toolkit.read_file(str(test_file))
+    assert "The file content at" in result
+    assert system.is_active(str(test_file))
+
+
+def test_patch_file(toolkit, tmpdir):
+    test_file = tmpdir.join("test_file.txt")
+    test_file.write("Hello, World!")
+
+    toolkit.read_file(str(test_file))  # Remember the file
+    result = toolkit.patch_file(str(test_file), "World", "Universe")
+    assert "Succesfully replaced before with after" in result
+    assert test_file.read() == "Hello, Universe!"
+
+
+def test_change_dir(toolkit, tmpdir):
+    subdir = tmpdir.mkdir("subdir")
+    result = toolkit.change_dir(str(subdir))
+    assert result == str(subdir)
+    assert system.cwd == str(subdir)
+
+
+def test_start_process(toolkit, tmpdir):
+    process_id = toolkit.start_process("python -m http.server 8000")
+    assert process_id > 0
+
+    # Check if the process is in the list of running processes
+    processes = toolkit.list_processes()
+    assert process_id in processes
+    assert "python -m http.server 8000" in processes[process_id]
+
+
+def test_list_processes(toolkit, tmpdir):
+    process_id1 = toolkit.start_process("python -m http.server 8001")
+    process_id2 = toolkit.start_process("python -m http.server 8002")
+
+    processes = toolkit.list_processes()
+    assert process_id1 in processes
+    assert process_id2 in processes
+    assert "python -m http.server 8001" in processes[process_id1]
+    assert "python -m http.server 8002" in processes[process_id2]
+
+
+def test_cancel_process(toolkit, tmpdir):
+    process_id = toolkit.start_process("python -m http.server 8003")
+
+    result = toolkit.cancel_process(process_id)
+    assert result == f"process {process_id} cancelled"
+
+    # Verify that the process is no longer in the list
+    processes = toolkit.list_processes()
+    assert process_id not in processes