DEVX-57: feat: add FORCE_DEPLOY env var, --git flag, --from-tag flag

tests/unit/test_validate_commit_msg.py

@@ -7,7 +7,7 @@ from unittest.mock import patch
 
 from click.testing import CliRunner
 
-from devx.ci.validate_commit_msg import first_line, get_branch, main
+from devx.ci.validate_commit_msg import first_line, get_branch, get_latest_commit_msg, main
 from devx.config import CONVENTIONAL_RE, TASK_ID_RE
 
 
@@ -126,7 +126,7 @@ class TestMain:
     def test_usage_message_without_args(self) -> None:
         runner = CliRunner()
         result = runner.invoke(main, [])
-        assert result.exit_code == 2
+        assert result.exit_code != 0
 
     def test_branch_override_accepts_master_commit(self) -> None:
         """--branch master overrides branch detection (for CI use)."""
@@ -257,3 +257,45 @@ def test_main_module_block() -> None:
         namespace["main"]([msg_path], standalone_mode=False)
 
     os.unlink(msg_path)
+
+
+class TestGitMode:
+    def test_git_flag_reads_from_git(self, tmp_path) -> None:
+        with patch("devx.ci.validate_commit_msg.get_latest_commit_msg", return_value="feat: add feature"):
+            with patch("devx.ci.validate_commit_msg.get_branch", return_value="feature-branch"):
+                runner = CliRunner()
+                result = runner.invoke(main, ["--git"])
+        assert result.exit_code == 0
+
+    def test_git_flag_master_valid(self) -> None:
+        msg = "DEVX-24: fix: resolve timeout"
+        with patch("devx.ci.validate_commit_msg.get_latest_commit_msg", return_value=msg):
+            with patch("devx.ci.validate_commit_msg.get_branch", return_value="master"):
+                runner = CliRunner()
+                result = runner.invoke(main, ["--git", "--branch", "master"])
+        assert result.exit_code == 0
+
+    def test_git_flag_master_invalid(self) -> None:
+        msg = "fix: resolve timeout"
+        with patch("devx.ci.validate_commit_msg.get_latest_commit_msg", return_value=msg):
+            with patch("devx.ci.validate_commit_msg.get_branch", return_value="master"):
+                runner = CliRunner()
+                result = runner.invoke(main, ["--git", "--branch", "master"])
+        assert result.exit_code != 0
+
+    def test_no_file_no_git_raises(self) -> None:
+        runner = CliRunner()
+        result = runner.invoke(main, ["--branch", "master"])
+        assert result.exit_code != 0
+
+    def test_get_latest_commit_msg_success(self) -> None:
+        with patch("subprocess.run") as mock_run:
+            mock_run.return_value = subprocess.CompletedProcess(args=[], returncode=0, stdout="feat: test\n\nBody")
+            result = get_latest_commit_msg()
+        assert result == "feat: test\n\nBody"
+
+    def test_stdin_input(self) -> None:
+        with patch("devx.ci.validate_commit_msg.get_branch", return_value="feature-branch"):
+            runner = CliRunner()
+            result = runner.invoke(main, input="feat: add feature\n", args=["-", "--branch", "feature-branch"])
+        assert result.exit_code == 0