tests: cover disabled labels in infrastructures

Tests differences when rack, row and equipments are either enabled or
disabled in infrastructures graphical representations.

racksdb/tests/drawers/test_infrastructure.py

@@ -5,6 +5,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 import unittest
+from unittest import mock
 import tempfile
 from pathlib import Path
 
@@ -67,3 +68,76 @@ def test_draw_not_existing_infrastructure(self):
                     self.db, "fail", filename, "png", self.parameters, None, "yaml"
                 )
             self.assertFalse(filename.exists())
+
+    def test_rack_row_spacing_height(self):
+        drawer = InfrastructureDrawer(
+            self.db, "mercury", "dontmind.png", "png", self.parameters, None, "yaml"
+        )
+        # Check that by default, row and racks labels are enabled.
+        self.assertTrue(self.parameters.rack.labels)
+        self.assertTrue(self.parameters.row.labels)
+
+        # Change values of rack offset and rack label offset to validate sums.
+        self.assertEqual(self.parameters.row.label_offset, 20)
+        self.parameters.rack.offset = 10
+        self.parameters.rack.label_offset = 30
+
+        # Check spacing height between rows with all labels enabled.
+        self.assertEqual(drawer._rack_row_spacing_height(), 60)  # 30 + 20 + 10
+        # Disable racks labels.
+        self.parameters.rack.labels = False
+        self.assertEqual(drawer._rack_row_spacing_height(), 30)  # 20 + 10
+        # Disable row labels (ie. no labels).
+        self.parameters.row.labels = False
+        self.assertEqual(drawer._rack_row_spacing_height(), 10)
+        # Re-enable racks labels (w/o row labels).
+        self.parameters.rack.labels = True
+        self.assertEqual(drawer._rack_row_spacing_height(), 40)  # 30 + 10
+
+    def test_labels_call_print_text(self):
+        with tempfile.TemporaryDirectory() as tmpdir:
+            filename = Path(tmpdir) / "output.png"
+            drawer = InfrastructureDrawer(
+                self.db, "mercury", filename, "png", self.parameters, None, "yaml"
+            )
+            # Mock _print_text() method to check if it is called or not.
+            drawer._print_text = mock.Mock()
+
+            # Check _print_text() is not called when all labels are disabled.
+            (
+                self.parameters.rack.labels,
+                self.parameters.row.labels,
+                self.parameters.infrastructure.equipment_labels,
+            ) = (False, False, False)
+            drawer.draw()
+            drawer._print_text.assert_not_called()
+            drawer._print_text.reset_mock()
+
+            # Check _print_text() is called when either rack, row or equipment
+            # labels are enabled.
+            (
+                self.parameters.rack.labels,
+                self.parameters.row.labels,
+                self.parameters.infrastructure.equipment_labels,
+            ) = (True, False, False)
+            drawer.draw()
+            drawer._print_text.assert_called()
+            drawer._print_text.reset_mock()
+
+            (
+                self.parameters.rack.labels,
+                self.parameters.row.labels,
+                self.parameters.infrastructure.equipment_labels,
+            ) = (False, True, False)
+            drawer.draw()
+            drawer._print_text.assert_called()
+            drawer._print_text.reset_mock()
+
+            (
+                self.parameters.rack.labels,
+                self.parameters.row.labels,
+                self.parameters.infrastructure.equipment_labels,
+            ) = (False, False, True)
+            drawer.draw()
+            drawer._print_text.assert_called()
+            drawer._print_text.reset_mock()