fix(striker-ui): re-add not-blank tests to test batch builders

striker-ui/lib/test_input/buildDomainTestBatch.tsx

@@ -1,5 +1,6 @@
 import { REP_DOMAIN } from '../consts/REG_EXP_PATTERNS';
 
+import testNotBlank from './testNotBlank';
 import { InlineMonoText } from '../../components/Text';
 
 const buildDomainTestBatch: BuildInputTestBatchFunction = (
@@ -12,6 +13,9 @@ const buildDomainTestBatch: BuildInputTestBatchFunction = (
   isRequired,
   onFinishBatch,
   tests: [
+    {
+      test: testNotBlank,
+    },
     {
       onFailure: (...args) => {
         onDomainTestFailure(

striker-ui/lib/test_input/buildIPAddressTestBatch.tsx

@@ -1,5 +1,7 @@
 import { REP_IPV4 } from '../consts/REG_EXP_PATTERNS';
 
+import testNotBlank from './testNotBlank';
+
 const buildIPAddressTestBatch: BuildInputTestBatchFunction = (
   inputName,
   onSuccess,
@@ -10,10 +12,13 @@ const buildIPAddressTestBatch: BuildInputTestBatchFunction = (
   isRequired,
   onFinishBatch,
   tests: [
+    {
+      test: testNotBlank,
+    },
     {
       onFailure: (...args) => {
         onIPv4TestFailure(
-          `${inputName} should be a valid IPv4 address.`,
+          <>{inputName} should be a valid IPv4 address.</>,
           ...args,
         );
       },

striker-ui/lib/test_input/buildIpCsvTestBatch.tsx

@@ -1,5 +1,7 @@
 import { REP_IPV4_CSV } from '../consts/REG_EXP_PATTERNS';
 
+import testNotBlank from './testNotBlank';
+
 const buildIpCsvTestBatch: BuildInputTestBatchFunction = (
   inputName,
   onSuccess,
@@ -10,10 +12,16 @@ const buildIpCsvTestBatch: BuildInputTestBatchFunction = (
   isRequired,
   onFinishBatch,
   tests: [
+    {
+      test: testNotBlank,
+    },
     {
       onFailure: (...args) => {
         onIpCsvTestFailure(
-          `${inputName} must be one or more valid IPv4 addresses separated by comma; without trailing comma.`,
+          <>
+            {inputName} must be one or more valid IPv4 addresses separated by
+            comma(s); without trailing comma.
+          </>,
           ...args,
         );
       },

striker-ui/lib/test_input/buildPeacefulStringTestBatch.tsx

@@ -1,5 +1,6 @@
 import { REP_PEACEFUL_STRING } from '../consts/REG_EXP_PATTERNS';
 
+import testNotBlank from './testNotBlank';
 import { InlineMonoText } from '../../components/Text';
 
 const buildPeacefulStringTestBatch: BuildInputTestBatchFunction = (
@@ -12,6 +13,13 @@ const buildPeacefulStringTestBatch: BuildInputTestBatchFunction = (
   isRequired,
   onFinishBatch,
   tests: [
+    {
+      /**
+       * Not-blank test ensures no unnecessary error message is provided when
+       * input is not (yet) filled.
+       */
+      test: testNotBlank,
+    },
     {
       onFailure: (...args) => {
         onTestPeacefulStringFailureAppend(

striker-ui/lib/test_input/buildUUIDTestBatch.tsx

@@ -1,5 +1,7 @@
 import { REP_UUID } from '../consts/REG_EXP_PATTERNS';
 
+import testNotBlank from './testNotBlank';
+
 const buildUUIDTestBatch: BuildInputTestBatchFunction = (
   inputName,
   onSuccess,
@@ -10,9 +12,12 @@ const buildUUIDTestBatch: BuildInputTestBatchFunction = (
   isRequired,
   onFinishBatch,
   tests: [
+    {
+      test: testNotBlank,
+    },
     {
       onFailure: (...args) => {
-        onUUIDTestFailure(`${inputName} must be a valid UUID.`, ...args);
+        onUUIDTestFailure(<>{inputName} must be a valid UUID.</>, ...args);
       },
       test: ({ value }) => REP_UUID.test(value as string),
     },