diff --git a/whelk-core/src/test/groovy/whelk/search2/EsBoostSpec.groovy b/whelk-core/src/test/groovy/whelk/search2/EsBoostSpec.groovy
new file mode 100644
index 0000000000..0c03db9dae
--- /dev/null
+++ b/whelk-core/src/test/groovy/whelk/search2/EsBoostSpec.groovy
@@ -0,0 +1,88 @@
+package whelk.search2
+
+import spock.lang.Specification
+import whelk.JsonLd
+
+class EsBoostSpec extends Specification {
+    def "should compute boost fields from lenses"() {
+        given:
+        def ns = 'http://example.org/ns/'
+
+        def context = [
+                '@context': [
+                        '@vocab': ns
+                ]
+        ]
+
+        def display = [
+                "lensGroups": [
+                        "chips": [
+                                "lenses": [
+                                        "Instance"   : [
+                                                "classLensDomain": "Instance",
+                                                "showProperties" : ["hasTitle", "comment"]
+                                        ],
+                                        "Publication": [
+                                                "classLensDomain": "Publication",
+                                                "showProperties" : ["agent"]
+                                        ]
+                                ]
+                        ],
+                        "cards": [
+                                "lenses": [
+                                        "Instance": [
+                                                "classLensDomain": "Instance",
+                                                "showProperties" : [
+                                                        [
+                                                                "alternateProperties": [
+                                                                        [
+                                                                                "subPropertyOf": "hasTitle"
+                                                                        ],
+                                                                        [
+                                                                                "subPropertyOf": "value"
+                                                                        ],
+                                                                        [
+                                                                                "noise": "should be ignored"
+                                                                        ],
+                                                                        "hasTitle",
+                                                                        "value"
+                                                                ]
+                                                        ],
+                                                        "publication"
+                                                ]
+                                        ]
+                                ]
+                        ]
+                ]
+        ]
+
+        def vocab = [
+                "@graph": [
+                        ["@id": ns + "QualifiedRole", "@type": "Class"],
+                        ["@id"       : ns + "Publication", "@type": "Class",
+                         "subClassOf": ["@id": ns + "QualifiedRole"]],
+                        ["@id"       : ns + "Title", "@type": "Class",
+                         "subClassOf": ["@id": ns + "StructuredValue"]],
+                        ["@id"  : ns + "hasTitle", "@type": "ObjectProperty",
+                         "range": [["@id": ns + "Title"]]],
+                        ["@id"  : ns + "publication", "@type": "ObjectProperty",
+                         "range": [["@id": ns + "Publication"]]],
+                        ["@id"  : ns + "agent", "@type": "ObjectProperty",
+                         "range": [["@id": ns + "Agent"]]],
+                        ["@id": ns + "value", "@type": "DatatypeProperty"],
+                        ["@id": ns + "comment", "@type": "DatatypeProperty"]
+                ]
+        ]
+
+        def jsonld = new JsonLd(context, display, vocab)
+        def lensBoost = new EsBoost(jsonld)
+
+        when:
+        def boostFields = lensBoost.getBoostFields(["Instance"])
+
+        then:
+        boostFields == [
+                'comment^200', 'hasTitle._str^200', '_str^100', 'publication.agent._str^10', 'value^10'
+        ]
+    }
+}