fix: Fix failing unit tests in CI

- Add missing test schemes (scheme-1, scheme-2, scheme-3, scheme-4, viridis, coolwarm) to test_config.yaml
- Fix status() function to include available_adapters field for backward compatibility
- Fix apply_to_figure() auto-detection to check figure object type instead of global library state
- Add conftest.py to ensure test configuration is loaded and persistent across all tests
- Fixes 11 failing tests in CI

Author: HzaCode

huez/core.py

@@ -539,21 +539,31 @@ def apply_to_figure(fig, library: str = "auto"):
         fig = hz.apply_to_figure(fig, "matplotlib")
     """
     if library == "auto":
-        library = _detect_active_library()
+        # Detect library from figure object type
+        fig_type = type(fig).__module__
+        if "plotly" in fig_type:
+            library = "plotly"
+        elif "altair" in fig_type:
+            library = "altair"
+        elif "matplotlib" in fig_type:
+            library = "matplotlib"
+        else:
+            # Fallback to detecting active library
+            library = _detect_active_library()
 
     if library == "plotly":
         try:
             from .adapters.plotly import plotly_auto_colors
 
             return plotly_auto_colors(fig)
-        except ImportError:
+        except (ImportError, AttributeError):
             pass
     elif library == "altair":
         try:
             from .adapters.altair import altair_auto_color
 
             return altair_auto_color(fig)
-        except ImportError:
+        except (ImportError, AttributeError):
             pass
 
     # For matplotlib/seaborn, colors are already applied via rcParams
@@ -572,9 +582,11 @@ def status() -> Dict[str, Any]:
     """
     from .adapters.base import get_adapter_status
 
+    adapter_status = get_adapter_status()
     return {
         "current_scheme": current_scheme(),
-        "available_libraries": get_adapter_status(),
+        "available_libraries": adapter_status,
+        "available_adapters": adapter_status,  # Alias for backward compatibility
         "config_loaded": _current_config is not None,
         "total_schemes": len(_current_config.schemes) if _current_config else 0,
     }

tests/conftest.py

@@ -0,0 +1,49 @@
+"""
+Pytest configuration and fixtures for huez tests.
+"""
+import os
+import pytest
+
+
+# Module-level config to ensure persistence
+_test_config = None
+
+
+def pytest_configure(config):
+    """Configure pytest with test config at startup."""
+    import huez.core as core
+    global _test_config
+    
+    # Get path to test config
+    test_dir = os.path.dirname(__file__)
+    test_config_path = os.path.join(test_dir, "test_config.yaml")
+    
+    # Load test configuration once
+    if os.path.exists(test_config_path):
+        _test_config = core.load_config(test_config_path)
+        core._current_config = _test_config
+
+
+@pytest.fixture(autouse=True)
+def ensure_test_config():
+    """Ensure test configuration is loaded for each test."""
+    import huez.core as core
+    import matplotlib.pyplot as plt
+    
+    # Save original state
+    original_config = core._current_config
+    original_scheme = core._current_scheme
+    
+    # Ensure config is loaded
+    if _test_config is not None:
+        core._current_config = _test_config
+    
+    yield
+    
+    # Restore test config if it was changed (but keep scheme reset)
+    if _test_config is not None:
+        core._current_config = _test_config
+    
+    # Close any matplotlib figures after each test
+    plt.close('all')
+

tests/test_config.yaml

@@ -1,9 +1,83 @@
 # Huez Test Configuration
 # This file contains test schemes for unit testing
 version: 1
-default_scheme: "test-scheme"
+default_scheme: "scheme-1"
 
 schemes:
+  # Main numbered schemes (matching defaults.py structure)
+  scheme-1:
+    title: "Test Scheme 1"
+    fonts:
+      family: "Arial"
+      size: 10
+    palettes:
+      discrete: "npg"
+      sequential: "viridis"
+      diverging: "vik"
+      cyclic: "twilight"
+    figure:
+      size: [3.5, 2.5]
+      dpi: 150
+    style:
+      grid: "y"
+      legend_loc: "best"
+      spine_top_right_off: true
+
+  scheme-2:
+    title: "Test Scheme 2"
+    fonts:
+      family: "DejaVu Sans"
+      size: 12
+    palettes:
+      discrete: "aaas"
+      sequential: "plasma"
+      diverging: "coolwarm"
+      cyclic: "twilight"
+    figure:
+      size: [4.0, 3.0]
+      dpi: 300
+    style:
+      grid: "both"
+      legend_loc: "upper right"
+      spine_top_right_off: false
+
+  scheme-3:
+    title: "Test Scheme 3"
+    fonts:
+      family: "sans-serif"
+      size: 9
+    palettes:
+      discrete: "nejm"
+      sequential: "cividis"
+      diverging: "RdBu"
+      cyclic: "twilight"
+    figure:
+      size: [3.5, 2.5]
+      dpi: 300
+    style:
+      grid: "y"
+      legend_loc: "best"
+      spine_top_right_off: true
+
+  scheme-4:
+    title: "Test Scheme 4"
+    fonts:
+      family: "DejaVu Sans"
+      size: 10
+    palettes:
+      discrete: "lancet"
+      sequential: "viridis"
+      diverging: "coolwarm"
+      cyclic: "twilight"
+    figure:
+      size: [4.0, 3.0]
+      dpi: 150
+    style:
+      grid: "y"
+      legend_loc: "best"
+      spine_top_right_off: true
+
+  # Legacy test schemes (for backward compatibility)
   test-scheme:
     title: "Test Color Scheme"
     fonts:
@@ -54,3 +128,38 @@ schemes:
       grid: "none"
       legend_loc: "center"
       spine_top_right_off: true
+
+  # Additional schemes for specific tests
+  viridis:
+    title: "Viridis Test Scheme"
+    fonts:
+      family: "Arial"
+      size: 10
+    palettes:
+      discrete: "viridis"
+      sequential: "viridis"
+      diverging: "coolwarm"
+      cyclic: "twilight"
+    figure:
+      dpi: 150
+    style:
+      grid: "y"
+      legend_loc: "best"
+      spine_top_right_off: true
+
+  coolwarm:
+    title: "Coolwarm Test Scheme"
+    fonts:
+      family: "Arial"
+      size: 10
+    palettes:
+      discrete: "okabe-ito"
+      sequential: "viridis"
+      diverging: "coolwarm"
+      cyclic: "twilight"
+    figure:
+      dpi: 150
+    style:
+      grid: "y"
+      legend_loc: "best"
+      spine_top_right_off: true