1 files changed, 82 insertions, 0 deletions
diff --git a/internal/node/primary/endpoint_internal_test.go b/internal/node/primary/endpoint_internal_test.go
new file mode 100644
index 0000000..6c76c33
--- /dev/null
+++ b/internal/node/primary/endpoint_internal_test.go
@@ -0,0 +1,82 @@
+package primary
+
+import (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	mocksDB "git.sigsum.org/log-go/internal/mocks/db"
+	"git.sigsum.org/log-go/internal/node/handler"
+	"git.sigsum.org/sigsum-go/pkg/merkle"
+	"git.sigsum.org/sigsum-go/pkg/types"
+	"github.com/golang/mock/gomock"
+)
+
+var (
+	testTH = &types.TreeHead{
+		Timestamp: 0,
+		TreeSize:  0,
+		RootHash:  *merkle.HashFn([]byte("root hash")),
+	}
+)
+
+func TestGetTreeHeadUnsigned(t *testing.T) {
+	for _, table := range []struct {
+		description string
+		expect      bool            // set if a mock answer is expected
+		rsp         *types.TreeHead // tree head from Trillian client
+		err         error           // error from Trillian client
+		wantCode    int             // HTTP status ok
+	}{
+		{
+			description: "invalid: backend failure",
+			expect:      true,
+			err:         fmt.Errorf("something went wrong"),
+			wantCode:    http.StatusInternalServerError,
+		},
+		{
+			description: "valid",
+			expect:      true,
+			rsp:         testTH,
+			wantCode:    http.StatusOK,
+		},
+	} {
+		// Run deferred functions at the end of each iteration
+		func() {
+			ctrl := gomock.NewController(t)
+			defer ctrl.Finish()
+			trillianClient := mocksDB.NewMockClient(ctrl)
+			trillianClient.EXPECT().GetTreeHead(gomock.Any()).Return(table.rsp, table.err)
+
+			node := Primary{
+				Config:         testConfig,
+				TrillianClient: trillianClient,
+			}
+
+			// Create HTTP request
+			url := types.EndpointGetTreeHeadUnsigned.Path("http://example.com", node.Prefix())
+			req, err := http.NewRequest("GET", url, nil)
+			if err != nil {
+				t.Fatalf("must create http request: %v", err)
+			}
+
+			// Run HTTP request
+			w := httptest.NewRecorder()
+			mustHandleInternal(t, node, types.EndpointGetTreeHeadUnsigned).ServeHTTP(w, req)
+			if got, want := w.Code, table.wantCode; got != want {
+				t.Errorf("got HTTP status code %v but wanted %v in test %q", got, want, table.description)
+			}
+		}()
+	}
+}
+
+func mustHandleInternal(t *testing.T, p Primary, e types.Endpoint) handler.Handler {
+	for _, handler := range p.InternalHTTPHandlers() {
+		if handler.Endpoint == e {
+			return handler
+		}
+	}
+	t.Fatalf("must handle endpoint: %v", e)
+	return handler.Handler{}
+}