First Working version. I can add table

tests/test_tabs.py

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+import pytest
+from fastcore.basics import NotStr
+from fasthtml.components import *
+
+from components.tabs.components.MyTabs import Tab, MyTabs
+from components.tabs.constants import ROUTE_ROOT, Routes
+from tests.helpers import matches, find_first_match
+
+
+@pytest.fixture
+def tabs_instance():
+  """Fixture to create an instance of tabs_instance with a mock session and ID."""
+  session = {'user_id': 'test_user'}
+  _id = 'test_tabs'
+  return MyTabs(session, _id)
+
+
+def test_initial_tabs_empty(tabs_instance):
+  """Test that the tabs are initially empty."""
+  assert len(tabs_instance.tabs) == 0
+
+
+def test_select_tab_empty(tabs_instance):
+  """Test the select_tab method when no tabs are available."""
+  tabs_instance.select_tab_by_id("1")  # Tab ID "1" doesn't exist
+  assert len(tabs_instance.tabs) == 0  # No changes should occur
+
+
+def test_add_tab_and_select_tab(tabs_instance):
+  """Test adding tabs and using the select_tab method."""
+  # Add some tabs
+  tabs_instance.tabs = [
+      Tab("1", "Tab1", "Content 1"),
+      Tab("2", "Tab2", "Content 2", active=True),
+      Tab("3", "Tab3", "Content 3"),
+  ]
+  
+  # Select a specific tab
+  tabs_instance.select_tab_by_id("3")
+  assert tabs_instance.tabs[0].active is False
+  assert tabs_instance.tabs[1].active is False
+  assert tabs_instance.tabs[2].active is True
+
+
+def test_add_tab_creates_a_new_tab(tabs_instance):
+  title = "Test Tab"
+  content = "This is a test content."
+  
+  tab_id = tabs_instance.add_tab(title=title, content=content)
+  
+  assert len(tabs_instance.tabs) == 1
+  assert tabs_instance.tabs[0].id == tab_id
+  assert tabs_instance.tabs[0].title == title
+  assert tabs_instance.tabs[0].content == content
+
+
+def test_add_tab_with_key_replaces_existing_tab(tabs_instance):
+  key = "test_key"
+  title1 = "Tab 1"
+  content1 = "Content 1"
+  title2 = "Tab 2"
+  content2 = "Content 2"
+  
+  tab_id1 = tabs_instance.add_tab(title=title1, content=content1, key=key)
+  tab_id2 = tabs_instance.add_tab(title=title2, content=content2, key=key)
+  
+  assert tab_id1 == tab_id2
+  assert len(tabs_instance.tabs) == 1
+  assert tabs_instance.tabs[0].title == title2
+  assert tabs_instance.tabs[0].content == content2
+
+
+def test_add_tab_no_key_creates_unique_tabs(tabs_instance):
+  title1 = "First Tab"
+  content1 = "First Tab Content"
+  title2 = "Second Tab"
+  content2 = "Second Tab Content"
+  
+  tab_id1 = tabs_instance.add_tab(title=title1, content=content1)
+  tab_id2 = tabs_instance.add_tab(title=title2, content=content2)
+  
+  assert tab_id1 != tab_id2
+  assert len(tabs_instance.tabs) == 2
+  assert tabs_instance.tabs[0].id == tab_id1
+  assert tabs_instance.tabs[1].id == tab_id2
+
+
+def test_add_tab_selects_new_tab_active(tabs_instance):
+  title = "Active Tab"
+  content = "Active Tab Content"
+  
+  tabs_instance.add_tab(title=title, content=content)
+  
+  assert tabs_instance.get_active_tab_content() == content
+
+
+def test_add_tab_with_icon_attribute(tabs_instance):
+  title = "Tab With Icon"
+  content = "Tab Content"
+  icon = "test_icon_path"
+  
+  tab_id = tabs_instance.add_tab(title=title, content=content, icon=icon)
+  
+  assert len(tabs_instance.tabs) == 1
+  assert tabs_instance.tabs[0].id == tab_id
+  assert tabs_instance.tabs[0].icon == icon
+
+def test_remove_tab(tabs_instance):
+  """Test the remove_tab method."""
+  # Add some tabs
+  tabs_instance.tabs = [
+      Tab("1", "Tab1", "Content 1"),
+      Tab("2", "Tab2", "Content 2", active=True),
+      Tab("3", "Tab3", "Content 3"),
+  ]
+  
+  # Remove a tab
+  tabs_instance.remove_tab("2")
+  assert len(tabs_instance.tabs) == 2
+  assert tabs_instance.tabs[0].id == "1"
+  assert tabs_instance.tabs[1].id == "3"
+  assert all(tab.id != "2" for tab in tabs_instance.tabs)
+
+
+def test_get_active_tab_content(tabs_instance):
+  """Test the get_active_tab_content method."""
+  # Initially, no content should be active (empty tabs list)
+  assert tabs_instance.get_active_tab_content() is None
+  
+  # Add some tabs
+  tabs_instance.tabs = [
+      Tab("1", "Tab1", "Content 1"),
+      Tab("2", "Tab2", "Content 2", active=True),
+      Tab("3", "Tab3", "Content 3"),
+  ]
+  
+  # Verify the content of the active tab
+  assert tabs_instance.get_active_tab_content() == "Content 2"
+  
+  # Change the active tab to Tab1 and verify
+  tabs_instance.select_tab_by_id("1")
+  assert tabs_instance.get_active_tab_content() == "Content 1"
+  
+  # Remove all tabs and check active content is None
+  tabs_instance.tabs.clear()
+  assert tabs_instance.get_active_tab_content() is None
+
+
+def test_there_always_an_active_tab_after_removal(tabs_instance):
+  tabs_instance.tabs = [
+      Tab("1", "Tab1", "Content 1"),
+      Tab("2", "Tab2", "Content 2", active=True),
+      Tab("3", "Tab3", "Content 3"),
+  ]
+  
+  tabs_instance.remove_tab("2")
+  assert tabs_instance.tabs[0].active is True
+  assert tabs_instance.tabs[1].active is False
+
+
+def test_do_no_change_the_active_tab_if_another_tab_is_removed(tabs_instance):
+  tabs_instance.tabs = [
+      Tab("1", "Tab1", "Content 1"),
+      Tab("2", "Tab2", "Content 2"),
+      Tab("3", "Tab3", "Content 3", active=True),
+  ]
+  
+  tabs_instance.remove_tab("1")
+  assert tabs_instance.tabs[0].active is False
+  assert tabs_instance.tabs[1].active is True
+
+
+def test_render_empty_when_empty(tabs_instance):
+  expected = Div(id=tabs_instance._id)
+  actual = tabs_instance.__ft__()
+  assert matches(tabs_instance.__ft__(), expected)
+
+
+def test_render_empty_when_multiple_tabs(tabs_instance):
+  tabs_instance.tabs = [
+      Tab("1", "Tab1", "Content 1"),
+      Tab("2", "Tab2", "Content 2", active=True),
+      Tab("3", "Tab3", "Content 3"),
+  ]
+  
+  expected = Div(
+    Span(cls="tabs-tab "),
+    Span(cls="tabs-tab tabs-active"),
+    Span(cls="tabs-tab "),
+    Div("Content 2", cls="tabs-content"),
+    id=tabs_instance._id,
+    cls="tabs",
+  )
+  
+  actual = tabs_instance.__ft__()
+  assert matches(actual, expected)
+
+
+def test_render_a_tab_has_label_and_a_cross_with_correct_hx_posts(tabs_instance):
+  tabs_instance.tabs = [
+      Tab("1", "Tab1", "Content 1"),
+  ]
+  
+  expected = Span(
+    Label("Tab1", hx_post=f"{ROUTE_ROOT}{Routes.SelectTab}"),
+    Div(NotStr('<svg name="close"'), hx_post=f"{ROUTE_ROOT}{Routes.RemoveTab}"),
+    cls="tabs-tab "
+  )
+  
+  actual = find_first_match(tabs_instance.__ft__(), "div.span")
+  assert matches(actual, expected)