Add JSON literal tests.

- Various tests of when `@type` of `@json` is used, the JSON may be an
  array, and the interaction with a `@container` of `@set` and `@list`.
- Change compaction output for `@json` and `@set` with a JSON array.
- Add test for many other possibilities and processing algorithms.
- Propose new `multiple JSON literals` error code when trying to add
  multiple JSON literals as values for a property.

Author: davidlehn

tests/compact-manifest.jsonld

@@ -1398,6 +1398,15 @@
       "input": "compact/ep15-in.jsonld",
       "context": "compact/ep15-context.jsonld",
       "expectErrorCode": "invalid container mapping"
+    }, {
+      "@id": "#tej01",
+      "@type": ["jld:NegativeEvaluationTest", "jld:CompactTest"],
+      "name": "Multiple JSON values for a JSON literal properties",
+      "purpose": "Tests compacting multiple JSON values for a JSON literal property.",
+      "input": "compact/ej01-in.jsonld",
+      "context": "compact/ej01-context.jsonld",
+      "expectErrorCode": "multiple JSON literals",
+      "option": {"specVersion": "json-ld-1.1"}
     }, {
       "@id": "#tin01",
       "@type": ["jld:PositiveEvaluationTest", "jld:CompactTest"],
@@ -1542,6 +1551,51 @@
       "context": "compact/js11-context.jsonld",
       "expect": "compact/js11-out.jsonld",
       "option": {"specVersion": "json-ld-1.1"}
+    }, {
+      "@id": "#tjs12",
+      "@type": ["jld:PositiveEvaluationTest", "jld:CompactTest"],
+      "name": "Compact JSON literal (empty array)",
+      "purpose": "Tests compacting property with @type @json to a JSON literal (empty array).",
+      "input": "compact/js12-in.jsonld",
+      "context": "compact/js12-context.jsonld",
+      "expect": "compact/js12-out.jsonld",
+      "option": {"specVersion": "json-ld-1.1"}
+    }, {
+      "@id": "#tjs13",
+      "@type": ["jld:PositiveEvaluationTest", "jld:CompactTest"],
+      "name": "Compact JSON literal (array with string)",
+      "purpose": "Tests compacting property with @type @json to a JSON literal (array with string).",
+      "input": "compact/js13-in.jsonld",
+      "context": "compact/js13-context.jsonld",
+      "expect": "compact/js13-out.jsonld",
+      "option": {"specVersion": "json-ld-1.1"}
+    }, {
+      "@id": "#tjs14",
+      "@type": ["jld:PositiveEvaluationTest", "jld:CompactTest"],
+      "name": "Compact JSON literal and non-JSON with @json property",
+      "purpose": "Tests compacting property with @type @json with JSON literal and non-JSON.",
+      "input": "compact/js14-in.jsonld",
+      "context": "compact/js14-context.jsonld",
+      "expect": "compact/js14-out.jsonld",
+      "option": {"specVersion": "json-ld-1.1"}
+    }, {
+      "@id": "#tjs15",
+      "@type": ["jld:PositiveEvaluationTest", "jld:CompactTest"],
+      "name": "Compact JSON literal and non-JSON without @json property",
+      "purpose": "Tests compacting property without @type @json with JSON literal and non-JSON.",
+      "input": "compact/js15-in.jsonld",
+      "context": "compact/js15-context.jsonld",
+      "expect": "compact/js15-out.jsonld",
+      "option": {"specVersion": "json-ld-1.1"}
+    }, {
+      "@id": "#tjs16",
+      "@type": ["jld:PositiveEvaluationTest", "jld:CompactTest"],
+      "name": "Compact JSON literal and non-JSON with and without @json property",
+      "purpose": "Tests compacting property with and without @type @json with JSON literal and non-JSON.",
+      "input": "compact/js16-in.jsonld",
+      "context": "compact/js16-context.jsonld",
+      "expect": "compact/js16-out.jsonld",
+      "option": {"specVersion": "json-ld-1.1"}
     }, {
       "@id": "#tla01",
       "@type": ["jld:PositiveEvaluationTest", "jld:CompactTest"],

tests/compact/ej01-context.jsonld

@@ -0,0 +1,6 @@
+{
+  "@context": {
+    "@version": 1.1,
+    "e": {"@id": "http://example.org/vocab#value", "@type": "@json"}
+  }
+}

tests/compact/ej01-in.jsonld

@@ -0,0 +1,9 @@
+[{
+  "http://example.org/vocab#value": [{
+    "@value": ["JSON1"],
+    "@type": "@json"
+  }, {
+    "@value": ["JSON2"],
+    "@type": "@json"
+  }]
+}]

tests/compact/js07-out.jsonld

@@ -3,5 +3,5 @@
     "@version": 1.1,
     "e": {"@id": "http://example.org/vocab#array", "@type": "@json", "@container": "@set"}
   },
-  "e": [{"foo": "bar"}]
-}
+  "e": [[{"foo": "bar"}]]
+}

tests/compact/js12-context.jsonld

@@ -0,0 +1,6 @@
+{
+  "@context": {
+    "@version": 1.1,
+    "e": {"@id": "http://example.org/vocab#value", "@type": "@json"}
+  }
+}

tests/compact/js12-in.jsonld

@@ -0,0 +1,6 @@
+[{
+  "http://example.org/vocab#value": [{
+    "@value": ["string"],
+    "@type": "@json"
+  }]
+}]

tests/compact/js12-out.jsonld

@@ -0,0 +1,7 @@
+{
+  "@context": {
+    "@version": 1.1,
+    "e": {"@id": "http://example.org/vocab#value", "@type": "@json"}
+  },
+  "e": ["string"]
+}

tests/compact/js13-context.jsonld

@@ -0,0 +1,6 @@
+{
+  "@context": {
+    "@version": 1.1,
+    "e": {"@id": "http://example.org/vocab#value", "@type": "@json"}
+  }
+}

tests/compact/js13-in.jsonld

@@ -0,0 +1,6 @@
+[{
+  "http://example.org/vocab#value": [{
+    "@value": [],
+    "@type": "@json"
+  }]
+}]

tests/compact/js13-out.jsonld

@@ -0,0 +1,7 @@
+{
+  "@context": {
+    "@version": 1.1,
+    "e": {"@id": "http://example.org/vocab#value", "@type": "@json"}
+  },
+  "e": []
+}