MXS-1300: Move the REST API tests back into the core

As the REST API is a part of the core, it is more appropriate for the
tests to reside there as well. Further refactoring of the testing needs to
be done to allow multiple components to use the same framework but with
different tests.

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

@@ -0,0 +1,126 @@
+require("../utils.js")()
+
+
+describe("HTTP Headers", function() {
+    before(startMaxScale)
+
+    it("ETag changes after modification", function() {
+        return request.get(base_url + "/servers/server1", {resolveWithFullResponse: true})
+            .then(function(resp) {
+                resp.headers.etag.should.be.equal("\"0\"")
+                var srv = JSON.parse(resp.body)
+                delete srv.data.relationships
+                return request.patch(base_url + "/servers/server1", {json: srv})
+            })
+            .then(function() {
+                return request.get(base_url + "/servers/server1", {resolveWithFullResponse: true})
+            })
+            .then(function(resp) {
+                resp.headers.etag.should.be.equal("\"1\"")
+            })
+    });
+
+    it("Last-Modified changes after modification", function(done) {
+        var date;
+
+        request.get(base_url + "/servers/server1", {resolveWithFullResponse: true})
+            .then(function(resp) {
+
+                // Store the current modification time
+                resp.headers["last-modified"].should.not.be.null
+                date = resp.headers["last-modified"]
+
+                // Modify resource after three seconds
+                setTimeout(function() {
+                    var srv = JSON.parse(resp.body)
+
+                    srv.data.relationships = {
+                        services: {
+                            data: [
+                                {id: "RW-Split-Router", type: "services"}
+                            ]
+                        }
+                    }
+
+                    request.patch(base_url + "/servers/server1", {json: srv})
+                        .then(function() {
+                            return request.get(base_url + "/servers/server1", {resolveWithFullResponse: true})
+                        })
+                        .then(function(resp) {
+                            resp.headers["last-modified"].should.not.be.null
+                            resp.headers["last-modified"].should.not.be.equal(date)
+                            done()
+                        })
+                        .catch(function(e) {
+                            done(e)
+                        })
+
+                }, 2000)
+            })
+            .catch(function(e) {
+                done(e)
+            })
+    });
+
+    var oldtime = new Date(new Date().getTime() - 1000000).toUTCString();
+    var newtime = new Date(new Date().getTime() + 1000000).toUTCString();
+
+    it("request with older If-Modified-Since value", function() {
+        return request.get(base_url + "/servers/server1", {
+            headers: { "If-Modified-Since":  oldtime}
+        }).should.be.fulfilled
+    })
+
+    it("request with newer If-Modified-Since value", function() {
+        return request.get(base_url + "/servers/server1", {
+            resolveWithFullResponse: true,
+            headers: { "If-Modified-Since": newtime }
+        }).should.be.rejected
+    })
+
+    it("request with older If-Unmodified-Since value", function() {
+        return request.get(base_url + "/servers/server1", {
+            headers: { "If-Unmodified-Since":  oldtime}
+        }).should.be.rejected
+    })
+
+    it("request with newer If-Unmodified-Since value", function() {
+        return request.get(base_url + "/servers/server1", {
+            headers: { "If-Unmodified-Since":  newtime}
+        }).should.be.fulfilled
+    })
+
+    it("request with mismatching If-Match value", function() {
+        return request.get(base_url + "/servers/server1", {
+            headers: { "If-Match":  "\"0\""}
+        }).should.be.rejected
+    })
+
+    it("request with matching If-Match value", function() {
+        return request.get(base_url + "/servers/server1", { resolveWithFullResponse: true })
+            .then(function(resp) {
+                return request.get(base_url + "/servers/server1", {
+                    headers: { "If-Match":  resp.headers["etag"]}
+                })
+            })
+            .should.be.fulfilled
+    })
+
+    it("request with mismatching If-None-Match value", function() {
+        return request.get(base_url + "/servers/server1", {
+            headers: { "If-None-Match":  "\"0\""}
+        }).should.be.fulfilled
+    })
+
+    it("request with matching If-None-Match value", function() {
+        return request.get(base_url + "/servers/server1", { resolveWithFullResponse: true })
+            .then(function(resp) {
+                return request.get(base_url + "/servers/server1", {
+                    headers: { "If-None-Match":  resp.headers["etag"]}
+                })
+            })
+            .should.be.rejected
+    })
+
+    after(stopMaxScale)
+});