[text] Add component tests with pattern coverage (#12345)

tests/components/text/common.yaml

@@ -0,0 +1,25 @@
+text:
+  - platform: template
+    name: "Test Text"
+    id: test_text
+    optimistic: true
+    min_length: 0
+    max_length: 100
+    mode: text
+
+  - platform: template
+    name: "Test Text with Pattern"
+    id: test_text_pattern
+    optimistic: true
+    min_length: 1
+    max_length: 50
+    pattern: "[A-Za-z0-9 ]+"
+    mode: text
+
+  - platform: template
+    name: "Test Password"
+    id: test_password
+    optimistic: true
+    min_length: 8
+    max_length: 32
+    mode: password

tests/components/text/test.esp32-idf.yaml

@@ -0,0 +1,2 @@
+packages:
+  common: !include common.yaml

tests/components/text/test.esp8266-ard.yaml

@@ -0,0 +1,2 @@
+packages:
+  common: !include common.yaml

tests/integration/fixtures/api_message_size_batching.yaml

@@ -143,6 +143,7 @@ text:
     mode: text
     min_length: 0
     max_length: 255
+    pattern: "[A-Za-z0-9 ]+"
     initial_value: "Initial value"
     update_interval: 5.0s
 

tests/integration/test_api_message_size_batching.py

@@ -141,6 +141,9 @@ async def test_api_message_size_batching(
         assert text_input.max_length == 255, (
             f"Expected max_length 255, got {text_input.max_length}"
         )
+        assert text_input.pattern == "[A-Za-z0-9 ]+", (
+            f"Expected pattern '[A-Za-z0-9 ]+', got '{text_input.pattern}'"
+        )
 
         # Verify total entity count - messages of various sizes were batched successfully
         # We have: 3 selects + 3 text sensors + 1 text input + 1 number = 8 total