Zakaria
79 lines
2.8 KiB
Python
79 lines
2.8 KiB
Python
"""Tests for hermes_cli.build_info — baked-in build SHA resolution.
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The build SHA is written by the Dockerfile's ``HERMES_GIT_SHA`` build-arg
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into ``<project_root>/.hermes_build_sha``. These tests cover the read-side
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helper: missing file, malformed file, truncation, and error tolerance.
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"""
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from pathlib import Path
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from unittest.mock import patch
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def test_get_build_sha_returns_none_when_file_absent(tmp_path):
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"""Source installs: no file present → None, callers fall back to git."""
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from hermes_cli import build_info
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missing = tmp_path / ".hermes_build_sha" # never created
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with patch.object(build_info, "_BUILD_SHA_FILE", missing):
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assert build_info.get_build_sha() is None
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def test_get_build_sha_reads_baked_file(tmp_path):
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"""Docker image case: file exists with full 40-char SHA → truncated to 8."""
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from hermes_cli import build_info
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sha_file = tmp_path / ".hermes_build_sha"
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sha_file.write_text("abcdef1234567890abcdef1234567890abcdef12\n")
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with patch.object(build_info, "_BUILD_SHA_FILE", sha_file):
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assert build_info.get_build_sha() == "abcdef12"
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def test_get_build_sha_respects_short_argument(tmp_path):
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"""``short=N`` truncates to N chars; ``short<=0`` returns full SHA."""
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from hermes_cli import build_info
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sha_file = tmp_path / ".hermes_build_sha"
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full_sha = "abcdef1234567890abcdef1234567890abcdef12"
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sha_file.write_text(full_sha + "\n")
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with patch.object(build_info, "_BUILD_SHA_FILE", sha_file):
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assert build_info.get_build_sha(short=12) == "abcdef123456"
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assert build_info.get_build_sha(short=0) == full_sha
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assert build_info.get_build_sha(short=-1) == full_sha
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def test_get_build_sha_strips_whitespace(tmp_path):
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"""The Dockerfile uses ``printf '%s\\n'`` — strip the trailing newline."""
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from hermes_cli import build_info
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sha_file = tmp_path / ".hermes_build_sha"
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sha_file.write_text(" abcdef1234567890\n\n")
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with patch.object(build_info, "_BUILD_SHA_FILE", sha_file):
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assert build_info.get_build_sha() == "abcdef12"
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def test_get_build_sha_returns_none_for_empty_file(tmp_path):
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"""A whitespace-only file is treated as absent."""
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from hermes_cli import build_info
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sha_file = tmp_path / ".hermes_build_sha"
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sha_file.write_text(" \n\n")
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with patch.object(build_info, "_BUILD_SHA_FILE", sha_file):
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assert build_info.get_build_sha() is None
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def test_get_build_sha_swallows_read_errors(tmp_path):
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"""Any IO exception from the read returns None — never raises."""
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from hermes_cli import build_info
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sha_file = tmp_path / ".hermes_build_sha"
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sha_file.write_text("abcdef1234567890\n")
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with patch.object(build_info, "_BUILD_SHA_FILE", sha_file), \
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patch.object(Path, "read_text", side_effect=OSError("boom")):
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assert build_info.get_build_sha() is None
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