feat: add validators for LocalBusiness, Article, Event, FAQPage, HowT…

gallery/Article/invalid_missing_headline.json

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+{
+	"@context": "https://schema.org",
+	"@type": "Article",
+	"author": {
+		"@type": "Person",
+		"name": "Jane Doe"
+	},
+	"datePublished": "2025-01-07"
+}

gallery/Article/valid1.json

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+{
+	"@context": "https://schema.org",
+	"@type": "Article",
+	"headline": "How to Write Great Headlines",
+	"author": {
+		"@type": "Person",
+		"name": "Jane Doe"
+	},
+	"publisher": {
+		"@type": "Organization",
+		"name": "Example News",
+		"logo": {
+			"@type": "ImageObject",
+			"url": "https://example.com/logo.png"
+		}
+	},
+	"datePublished": "2025-01-07",
+	"dateModified": "2025-01-07",
+	"image": "https://example.com/article-image.jpg"
+}

gallery/Event/invalid_missing_location.json

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+{
+	"@context": "https://schema.org",
+	"@type": "Event",
+	"name": "The Adventures of Kira and Morrison",
+	"startDate": "2025-07-21T19:00-05:00"
+}

gallery/Event/invalid_missing_name.json

@@ -0,0 +1,9 @@
+{
+	"@context": "https://schema.org",
+	"@type": "Event",
+	"startDate": "2025-07-21T19:00-05:00",
+	"location": {
+		"@type": "Place",
+		"name": "Snickerpark Stadium"
+	}
+}

gallery/Event/valid1.json

@@ -0,0 +1,36 @@
+{
+	"@context": "https://schema.org",
+	"@type": "Event",
+	"name": "The Adventures of Kira and Morrison",
+	"startDate": "2025-07-21T19:00-05:00",
+	"endDate": "2025-07-21T23:00-05:00",
+	"location": {
+		"@type": "Place",
+		"name": "Snickerpark Stadium",
+		"address": {
+			"@type": "PostalAddress",
+			"streetAddress": "100 West Snickerpark Dr",
+			"addressLocality": "Snickertown",
+			"postalCode": "19019",
+			"addressRegion": "PA",
+			"addressCountry": "US"
+		}
+	},
+	"image": "https://example.com/event-image.jpg",
+	"description": "An amazing concert event",
+	"offers": {
+		"@type": "Offer",
+		"url": "https://example.com/tickets",
+		"price": "30",
+		"priceCurrency": "USD",
+		"availability": "https://schema.org/InStock"
+	},
+	"performer": {
+		"@type": "Person",
+		"name": "Kira Morrison"
+	},
+	"organizer": {
+		"@type": "Organization",
+		"name": "Concert Events Inc"
+	}
+}

gallery/Event/valid_online.json

@@ -0,0 +1,9 @@
+{
+	"@context": "https://schema.org",
+	"@type": "Event",
+	"name": "Online Webinar: Introduction to Schema.org",
+	"startDate": "2025-07-21T19:00-05:00",
+	"eventAttendanceMode": "https://schema.org/OnlineEventAttendanceMode",
+	"eventStatus": "https://schema.org/EventScheduled",
+	"description": "Learn about structured data"
+}

gallery/FAQPage/invalid_missing_mainEntity.json

@@ -0,0 +1,5 @@
+{
+	"@context": "https://schema.org",
+	"@type": "FAQPage",
+	"name": "Frequently Asked Questions"
+}

gallery/FAQPage/valid1.json

@@ -0,0 +1,22 @@
+{
+	"@context": "https://schema.org",
+	"@type": "FAQPage",
+	"mainEntity": [
+		{
+			"@type": "Question",
+			"name": "What is structured data?",
+			"acceptedAnswer": {
+				"@type": "Answer",
+				"text": "Structured data is a standardized format for providing information about a page and classifying the page content."
+			}
+		},
+		{
+			"@type": "Question",
+			"name": "Why is structured data important?",
+			"acceptedAnswer": {
+				"@type": "Answer",
+				"text": "Structured data helps search engines understand your content better and can enable rich results in search."
+			}
+		}
+	]
+}

gallery/HowTo/invalid_missing_name.json

@@ -0,0 +1,10 @@
+{
+  "@context": "https://schema.org",
+  "@type": "HowTo",
+  "step": [
+    {
+      "@type": "HowToStep",
+      "text": "Do something"
+    }
+  ]
+}

gallery/HowTo/invalid_missing_step.json

@@ -0,0 +1,5 @@
+{
+  "@context": "https://schema.org",
+  "@type": "HowTo",
+  "name": "How to Do Something"
+}

gallery/HowTo/valid1.json

@@ -0,0 +1,46 @@
+{
+  "@context": "https://schema.org",
+  "@type": "HowTo",
+  "name": "How to Change a Tire",
+  "description": "A step-by-step guide to changing a flat tire.",
+  "totalTime": "PT30M",
+  "estimatedCost": {
+    "@type": "MonetaryAmount",
+    "currency": "USD",
+    "value": "0"
+  },
+  "supply": [
+    {
+      "@type": "HowToSupply",
+      "name": "Spare tire"
+    },
+    {
+      "@type": "HowToSupply",
+      "name": "Lug wrench"
+    }
+  ],
+  "tool": [
+    {
+      "@type": "HowToTool",
+      "name": "Jack"
+    }
+  ],
+  "step": [
+    {
+      "@type": "HowToStep",
+      "name": "Loosen the lug nuts",
+      "text": "Use the lug wrench to loosen the lug nuts on the flat tire."
+    },
+    {
+      "@type": "HowToStep",
+      "name": "Jack up the car",
+      "text": "Place the jack under the car frame and raise the car."
+    },
+    {
+      "@type": "HowToStep",
+      "name": "Remove the flat tire",
+      "text": "Remove the lug nuts and pull off the flat tire."
+    }
+  ],
+  "image": "https://example.com/tire-change.jpg"
+}

gallery/LocalBusiness/invalid_missing_address.json

@@ -0,0 +1,5 @@
+{
+	"@context": "https://schema.org",
+	"@type": "LocalBusiness",
+	"name": "Dave's Steak House"
+}

gallery/LocalBusiness/invalid_missing_name.json

@@ -0,0 +1,12 @@
+{
+	"@context": "https://schema.org",
+	"@type": "LocalBusiness",
+	"address": {
+		"@type": "PostalAddress",
+		"streetAddress": "123 Main St",
+		"addressLocality": "New York",
+		"addressRegion": "NY",
+		"postalCode": "10001",
+		"addressCountry": "US"
+	}
+}

gallery/LocalBusiness/valid1.json

@@ -0,0 +1,36 @@
+{
+	"@context": "https://schema.org",
+	"@type": "LocalBusiness",
+	"name": "Dave's Steak House",
+	"address": {
+		"@type": "PostalAddress",
+		"streetAddress": "123 Main St",
+		"addressLocality": "New York",
+		"addressRegion": "NY",
+		"postalCode": "10001",
+		"addressCountry": "US"
+	},
+	"telephone": "+1-212-555-1234",
+	"url": "https://www.davessteakhouse.example.com",
+	"image": "https://www.davessteakhouse.example.com/image.jpg",
+	"priceRange": "$$",
+	"geo": {
+		"@type": "GeoCoordinates",
+		"latitude": "40.7128",
+		"longitude": "-74.0060"
+	},
+	"openingHoursSpecification": [
+		{
+			"@type": "OpeningHoursSpecification",
+			"dayOfWeek": [
+				"Monday",
+				"Tuesday",
+				"Wednesday",
+				"Thursday",
+				"Friday"
+			],
+			"opens": "11:00",
+			"closes": "22:00"
+		}
+	]
+}

gallery/WebSite/invalid_missing_name.json

@@ -0,0 +1,5 @@
+{
+  "@context": "https://schema.org",
+  "@type": "WebSite",
+  "url": "https://www.example.com"
+}

gallery/WebSite/invalid_missing_url.json

@@ -0,0 +1,5 @@
+{
+  "@context": "https://schema.org",
+  "@type": "WebSite",
+  "name": "Example Website"
+}

gallery/WebSite/valid1.json

@@ -0,0 +1,14 @@
+{
+	"@context": "https://schema.org",
+	"@type": "WebSite",
+	"name": "Example Website",
+	"url": "https://www.example.com",
+	"potentialAction": {
+		"@type": "SearchAction",
+		"target": {
+			"@type": "EntryPoint",
+			"urlTemplate": "https://www.example.com/search?q={search_term_string}"
+		},
+		"query-input": "required name=search_term_string"
+	}
+}

src/types/Answer.js

@@ -0,0 +1,18 @@
+/**
+ * Copyright 2025 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+import BaseValidator from './base.js';
+
+export default class AnswerValidator extends BaseValidator {
+  getConditions() {
+    return [this.required('text')].map((c) => c.bind(this));
+  }
+}

src/types/Article.js

@@ -0,0 +1,26 @@
+/**
+ * Copyright 2025 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+import BaseValidator from './base.js';
+
+export default class ArticleValidator extends BaseValidator {
+  getConditions() {
+    return [
+      this.required('headline'),
+
+      this.recommended('author', 'arrayOrObject'),
+      this.recommended('dateModified', 'date'),
+      this.recommended('datePublished', 'date'),
+      this.recommended('image', 'arrayOrObject'),
+      this.recommended('publisher', 'object'),
+    ].map((c) => c.bind(this));
+  }
+}

src/types/Event.js

@@ -0,0 +1,51 @@
+/**
+ * Copyright 2025 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+import BaseValidator from './base.js';
+
+export default class EventValidator extends BaseValidator {
+  getConditions() {
+    return [
+      this.required('name'),
+      this.required('startDate', 'date'),
+      this.locationOrAttendanceMode,
+
+      this.recommended('description'),
+      this.recommended('endDate', 'date'),
+      this.recommended('eventAttendanceMode'),
+      this.recommended('eventStatus'),
+      this.recommended('image', 'arrayOrObject'),
+      this.recommended('offers', 'arrayOrObject'),
+      this.recommended('organizer', 'object'),
+      this.recommended('performer', 'arrayOrObject'),
+    ].map((c) => c.bind(this));
+  }
+
+  locationOrAttendanceMode(data) {
+    const hasLocation = data.location !== undefined && data.location !== null;
+    const hasOnlineAttendanceMode =
+      data.eventAttendanceMode &&
+      (data.eventAttendanceMode.includes('OnlineEventAttendanceMode') ||
+        data.eventAttendanceMode.includes('MixedEventAttendanceMode'));
+
+    if (!hasLocation && !hasOnlineAttendanceMode) {
+      return {
+        issueMessage:
+          'Either "location" or online "eventAttendanceMode" is required',
+        severity: 'ERROR',
+        path: this.path,
+        fieldName: 'location',
+        fieldNames: ['location', 'eventAttendanceMode'],
+      };
+    }
+    return null;
+  }
+}

src/types/FAQPage.js

@@ -0,0 +1,18 @@
+/**
+ * Copyright 2025 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+import BaseValidator from './base.js';
+
+export default class FAQPageValidator extends BaseValidator {
+  getConditions() {
+    return [this.required('mainEntity', 'arrayOrObject')].map((c) => c.bind(this));
+  }
+}