Adding more tests.

js/test_cases/block_unrendered/base.dust

@@ -0,0 +1 @@
+The block content is from {+inject/}

js/test_cases/block_unrendered/input1.json

@@ -0,0 +1,14 @@
+{
+  "people": [
+    {
+      "name": "Alice",
+      "item": "cat"
+    },
+    {
+      "name": "Bob"
+    }
+  ],
+  "pet": {
+    "name": "fluffy"
+  }
+}

js/test_cases/block_unrendered/main.dust

@@ -0,0 +1,10 @@
+{#pet}
+    {>"base"/}
+{/pet}
+{#people}
+    {<inject}by {name}{/inject}
+{/people}
+{#cake}
+    OMG CAKE
+    {<inject}with cake{/inject}
+{/cake}