add FontBitFlagModel tests

Author: chrissimpkins

tests/test_models_fontbitflag.py

@@ -0,0 +1,105 @@
+from slice.models import FontBitFlagModel
+
+#
+# Utilities
+#
+
+
+def get_os2_default_dict():
+    return {
+        "bit0": False,
+        "bit5": False,
+        "bit6": False,
+        "bit8": False,
+    }
+
+
+def get_os2_default_dict_true():
+    return {
+        "bit0": True,
+        "bit5": True,
+        "bit6": True,
+        "bit8": True,
+    }
+
+
+def get_head_default_dict():
+    return {
+        "bit0": False,
+        "bit1": False,
+    }
+
+
+def get_head_default_dict_true():
+    return {
+        "bit0": True,
+        "bit1": True,
+    }
+
+
+# ~~~~~~~~~~~~~~~
+#
+# Tests
+#
+# ~~~~~~~~~~~~~~~
+
+
+def test_bitflag_model_default():
+    fm = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict())
+    assert fm._os2_dict == get_os2_default_dict()
+    assert fm._head_dict == get_head_default_dict()
+
+
+def test_bitflag_model_set_bit():
+    fm = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict())
+    assert fm._set_bit(0, 0) == 1
+
+
+def test_bitflag_model_clear_bit():
+    fm = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict())
+    assert fm._clear_bit(1, 0) == 0
+
+
+def test_bitflag_model_get_offset_from_key():
+    fm = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict())
+    assert fm._get_bit_offset_from_key("bit0") == 0
+    assert fm._get_bit_offset_from_key("bit1") == 1
+    assert fm._get_bit_offset_from_key("bit10") == 10
+
+
+def test_bitflag_model_get_os2_instance_data():
+    fm = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict())
+    assert fm.get_os2_instance_data() == get_os2_default_dict()
+
+
+def test_bitflag_model_get_head_instance_data():
+    fm = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict())
+    assert fm.get_head_instance_data() == get_head_default_dict()
+
+
+def test_bitflag_model_edit_os2_fsselection_bits():
+    # set all bits that will be cleared
+    test_int = 353
+    fm = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict())
+    # confirm that they are all cleared
+    assert fm.edit_os2_fsselection_bits(test_int) == 0
+
+    # clear all bits that will be set
+    test_int2 = 0
+    fm2 = FontBitFlagModel(get_os2_default_dict_true(), get_head_default_dict())
+    # confirm that they are all set
+    assert fm2.edit_os2_fsselection_bits(test_int2) == 353
+
+
+def test_bitflag_model_edit_head_macstyle_bits():
+    # set all bits that will be cleared
+    test_int = 3
+    fm = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict())
+    # confirm that they are all cleared
+    assert fm.edit_head_macstyle_bits(test_int) == 0
+
+    # clear all bits that will be set
+    test_int2 = 0
+    fm2 = FontBitFlagModel(get_os2_default_dict(), get_head_default_dict_true())
+    # confirm that they are all set
+    assert fm2.edit_head_macstyle_bits(test_int2) == 3