Fix dead password tests and add ItemTag whitespace-name regression tests (#42)

Two bugs in test assertions found while auditing validators:

1. Three password tests in SignInEmailAndPasswordViewModelTest and
   SignUpViewModelTest called hasInvalidDataEmail() instead of
   hasInvalidDataPassword(). Email is blank by default in those setups,
   so assertions passed for the wrong reason and the password rules
   were never actually exercised. Pointed them at hasInvalidDataPassword().

2. Added whitespaceOnlyName_isInvalid regression tests for both
   ItemTagCreateViewModel and ItemTagEditViewModel to lock in the
   isBlank() name validation already in place.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: dadachi

app/src/test/kotlin/com/nativeapptemplate/nativeapptemplatefree/ui/app_root/SignInEmailAndPasswordViewModelTest.kt

@@ -97,7 +97,7 @@ class SignInEmailAndPasswordViewModelTest {
 
     viewModel.updatePassword("")
 
-    assertTrue(viewModel.hasInvalidDataEmail())
+    assertTrue(viewModel.hasInvalidDataPassword())
   }
 
   @Test
@@ -106,7 +106,7 @@ class SignInEmailAndPasswordViewModelTest {
 
     viewModel.updatePassword("1234567")
 
-    assertTrue(viewModel.hasInvalidDataEmail())
+    assertTrue(viewModel.hasInvalidDataPassword())
   }
 }
 

app/src/test/kotlin/com/nativeapptemplate/nativeapptemplatefree/ui/app_root/SignUpViewModelTest.kt

@@ -109,7 +109,7 @@ class SignUpViewModelTest {
 
     viewModel.updatePassword("1234567")
 
-    assertTrue(viewModel.hasInvalidDataEmail())
+    assertTrue(viewModel.hasInvalidDataPassword())
   }
 }
 

app/src/test/kotlin/com/nativeapptemplate/nativeapptemplatefree/ui/shop_settings/item_tag_detail/ItemTagEditViewModelTest.kt

@@ -129,6 +129,19 @@ class ItemTagEditViewModelTest {
     assertTrue(viewModel.hasInvalidData())
   }
 
+  @Test
+  fun whitespaceOnlyName_isInvalid() = runTest {
+    backgroundScope.launch(UnconfinedTestDispatcher()) { viewModel.uiState.collect() }
+
+    itemTagRepository.sendItemTag(testInputItemTag)
+    viewModel.reload()
+
+    viewModel.updateName("   ")
+
+    assertTrue(viewModel.hasInvalidDataName())
+    assertTrue(viewModel.hasInvalidData())
+  }
+
   @Test
   fun nameWithSymbolsAndUnicode_isValid() = runTest {
     backgroundScope.launch(UnconfinedTestDispatcher()) { viewModel.uiState.collect() }

app/src/test/kotlin/com/nativeapptemplate/nativeapptemplatefree/ui/shop_settings/item_tag_list/ItemTagCreateViewModelTest.kt

@@ -81,6 +81,16 @@ class ItemTagCreateViewModelTest {
     assertTrue(viewModel.hasInvalidData())
   }
 
+  @Test
+  fun whitespaceOnlyName_isInvalid() = runTest {
+    backgroundScope.launch(UnconfinedTestDispatcher()) { viewModel.uiState.collect() }
+
+    viewModel.updateName("   ")
+
+    assertTrue(viewModel.hasInvalidDataName())
+    assertTrue(viewModel.hasInvalidData())
+  }
+
   @Test
   fun singleCharacterName_isValid() = runTest {
     backgroundScope.launch(UnconfinedTestDispatcher()) { viewModel.uiState.collect() }