MXS-1929: Add REST API filter test

Most parts of the test still fail due to the fact that they haven't been
implemented.

server/core/test/rest-api/test/filter.js

@@ -0,0 +1,98 @@
+require("../utils.js")()
+
+var filter = {
+    data: {
+        id: "test-filter",
+        type: "filters",
+        attributes: {
+            module: "qlafilter",
+            parameters: {
+                filebase: "/tmp/qla.log"
+            }
+        }
+    }
+};
+
+var rel = {
+    services: {
+        data: [
+            { id: "RW-Split-Router", type: "services" }
+        ]
+    }
+};
+
+describe("Filter", function() {
+    before(startMaxScale)
+
+    it("create new filter", function() {
+        return request.post(base_url + "/filters/", {json: filter })
+            .should.be.fulfilled
+    });
+
+    it("request filter", function() {
+        return request.get(base_url + "/filters/" + filter.data.id)
+            .should.be.fulfilled
+    });
+
+    it("update filter", function() {
+        filter.data.attributes.parameters.separator = "|"
+        return request.patch(base_url + "/filters/" + filter.data.id, { json: filter})
+            .should.be.fulfilled
+    });
+
+    it("destroy filter", function() {
+        return request.delete(base_url + "/filters/" + filter.data.id)
+            .should.be.fulfilled
+    });
+
+    after(stopMaxScale)
+});
+
+describe("Filter Relationships", function() {
+    before(startMaxScale)
+
+    // We need a deep copy of the original filter
+    var rel_filter = JSON.parse(JSON.stringify(filter))
+    rel_filter.data.relationships = rel
+
+    it("create new filter with relationships", function() {
+        return request.post(base_url + "/filters/", {json: rel_filter})
+            .should.be.fulfilled
+    });
+
+    it("request filter", function() {
+        return request.get(base_url + "/filters/" + rel_filter.data.id, { json: true })
+            .then((res) => {
+                res.data.relationships.services.data.should.have.lengthOf(1)
+            })
+    });
+
+    it("add relationships with `relationships` endpoint", function() {
+        return request.patch(base_url + "/filters/" + rel_filter.data.id + "/relationships/monitors",
+                             { json: { data: [ { id: "Read-Connection-Router", type: "services" }]}})
+            .then(() => request.get(base_url + "/filters/" + rel_filter.data.id, {json: true}))
+            .then((res) => {
+                res.data.relationships.monitors.data.should.have.lengthOf(2)
+                    .that.has.deep.include({ id: "Read-Connection-Router", type: "services" })
+            })
+    });
+
+    it("bad request body with `relationships` endpoint should be rejected", function() {
+        var body = {data: null}
+        return request.patch(base_url + "/filters/" + rel_filter.data.id + "/relationships/monitors", { json: body })
+            .should.be.rejected
+    });
+
+    it("remove relationships", function() {
+        rel_filter.data.relationships["services"] = null
+        return request.patch(base_url + "/filters/" + rel_filter.data.id, {json: rel_filter})
+            .should.be.fulfilled
+    });
+
+    it("destroy filter", function() {
+        return request.delete(base_url + "/filters/" + rel_filter.data.id)
+            .should.be.fulfilled
+    });
+
+    after(stopMaxScale)
+});