fix(get): Get returns 404 if dataset is not found

api/api_test.go

@@ -31,6 +31,10 @@ func init() {
 }
 
 func newTestRepo(t *testing.T) (r repo.Repo, teardown func()) {
+	return newTestRepoWithNumDatasets(t, 0)
+}
+
+func newTestRepoWithNumDatasets(t *testing.T, num int) (r repo.Repo, teardown func()) {
 	var err error
 	if err = confirmQriNotRunning(); err != nil {
 		t.Fatal(err.Error())
@@ -40,7 +44,7 @@ func newTestRepo(t *testing.T) (r repo.Repo, teardown func()) {
 	golog.SetLogLevel("qriapi", "error")
 
 	// use a test registry server (with a pinset) & client & client
-	rc, registryServer := regmock.NewMockServer()
+	rc, registryServer := regmock.NewMockServerWithNumDatasets(num)
 	// to keep hashes consistent, artificially specify the timestamp by overriding
 	// the dsfs.Timestamp func
 	prevTs := dsfs.Timestamp
@@ -74,8 +78,12 @@ func newTestRepo(t *testing.T) (r repo.Repo, teardown func()) {
 }
 
 func newTestNode(t *testing.T) (node *p2p.QriNode, teardown func()) {
+	return newTestNodeWithNumDatasets(t, 0)
+}
+
+func newTestNodeWithNumDatasets(t *testing.T, num int) (node *p2p.QriNode, teardown func()) {
 	var r repo.Repo
-	r, teardown = newTestRepo(t)
+	r, teardown = newTestRepoWithNumDatasets(t, num)
 	node, err := p2p.NewQriNode(r, config.DefaultP2PForTesting())
 	if err != nil {
 		t.Fatal(err.Error())

api/registry.go

@@ -3,6 +3,7 @@ package api
 import (
 	"fmt"
 	"net/http"
+	"strings"
 
 	util "github.com/datatogether/api/apiutil"
 	"github.com/qri-io/qri/lib"
@@ -131,6 +132,11 @@ func (h *RegistryHandlers) registryDatasetHandler(w http.ResponseWriter, r *http
 
 	err = h.RegistryRequests.GetDataset(&ref, res)
 	if err != nil {
+		// If error was that the dataset wasn't found, send back 404 Not Found.
+		if strings.HasPrefix(err.Error(), "error 404") {
+			util.NotFoundHandler(w, r)
+			return
+		}
 		util.WriteErrResponse(w, http.StatusInternalServerError, err)
 		return
 	}

api/registry_test.go

@@ -1,6 +1,10 @@
 package api
 
 import (
+	"io/ioutil"
+	"net/http/httptest"
+	"strings"
+
 	"testing"
 )
 
@@ -23,3 +27,49 @@ func TestRegistryHandlers(t *testing.T) {
 	}
 	runHandlerTestCases(t, "registryDatasets", h.RegistryDatasetsHandler, registryDatasetsCases)
 }
+
+
+func TestRegistryGet(t *testing.T) {
+	node, teardown := newTestNodeWithNumDatasets(t, 1)
+	defer teardown()
+	h := NewRegistryHandlers(node)
+
+	req := httptest.NewRequest("GET", "/registry/me/ds_0", strings.NewReader(""))
+	w := httptest.NewRecorder()
+	h.RegistryDatasetHandler(w, req)
+	res := w.Result()
+
+	body, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	got := string(body)
+
+	expect := `{"data":{"peername":"peer","name":"ds_0","path":"QmAbC0","dataset":{"name":"ds_0","path":"QmAbC0","peername":"peer","qri":"ds:0"},"published":true},"meta":{"code":200}}`
+	if got != expect {
+		t.Errorf("did not match, got:\n%s\nexpect:\n%s\n", got, expect)
+	}
+}
+
+
+func TestRegistryGetNotFound(t *testing.T) {
+	node, teardown := newTestNodeWithNumDatasets(t, 1)
+	defer teardown()
+	h := NewRegistryHandlers(node)
+
+	req := httptest.NewRequest("GET", "/registry/me/not_found", strings.NewReader(""))
+	w := httptest.NewRecorder()
+	h.RegistryDatasetHandler(w, req)
+	res := w.Result()
+
+	body, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	got := string(body)
+
+	expect := `{ "meta": { "code": 404, "status": "not found" }, "data": null }`
+	if got != expect {
+		t.Errorf("did not match, got:\n%s\nexpect:\n%s\n", got, expect)
+	}
+}