1 files changed, 134 insertions, 1 deletions
diff --git a/trillian/client_test.go b/trillian/client_test.go
index 001d1dc..bbc61ca 100644
--- a/trillian/client_test.go
+++ b/trillian/client_test.go
@@ -397,4 +397,137 @@ func TestGetInclusionProof(t *testing.T) {
 	}
 }
 
-func TestGetLeaves(t *testing.T) {}
+func TestGetLeaves(t *testing.T) {
+	req := &types.LeavesRequest{
+		StartSize: 1,
+		EndSize:   2,
+	}
+	firstLeaf := &types.Leaf{
+		Message: types.Message{
+			ShardHint: 0,
+			Checksum:  &[types.HashSize]byte{},
+		},
+		SigIdent: types.SigIdent{
+			Signature: &[types.SignatureSize]byte{},
+			KeyHash:   &[types.HashSize]byte{},
+		},
+	}
+	secondLeaf := &types.Leaf{
+		Message: types.Message{
+			ShardHint: 0,
+			Checksum:  &[types.HashSize]byte{},
+		},
+		SigIdent: types.SigIdent{
+			Signature: &[types.SignatureSize]byte{},
+			KeyHash:   &[types.HashSize]byte{},
+		},
+	}
+
+	for _, table := range []struct {
+		description string
+		req         *types.LeavesRequest
+		rsp         *trillian.GetLeavesByRangeResponse
+		err         error
+		wantErr     bool
+		wantLeaves  *types.LeafList
+	}{
+		{
+			description: "invalid: backend failure",
+			req:         req,
+			err:         fmt.Errorf("something went wrong"),
+			wantErr:     true,
+		},
+		{
+			description: "invalid: no response",
+			req:         req,
+			wantErr:     true,
+		},
+		{
+			description: "invalid: unexpected number of leaves",
+			req:         req,
+			rsp: &trillian.GetLeavesByRangeResponse{
+				Leaves: []*trillian.LogLeaf{
+					&trillian.LogLeaf{
+						LeafValue: firstLeaf.Marshal(),
+						LeafIndex: 1,
+					},
+				},
+			},
+			wantErr: true,
+		},
+		{
+			description: "invalid: unexpected leaf (1/2)",
+			req:         req,
+			rsp: &trillian.GetLeavesByRangeResponse{
+				Leaves: []*trillian.LogLeaf{
+					&trillian.LogLeaf{
+						LeafValue: firstLeaf.Marshal(),
+						LeafIndex: 1,
+					},
+					&trillian.LogLeaf{
+						LeafValue: secondLeaf.Marshal(),
+						LeafIndex: 3,
+					},
+				},
+			},
+			wantErr: true,
+		},
+		{
+			description: "invalid: unexpected leaf (2/2)",
+			req:         req,
+			rsp: &trillian.GetLeavesByRangeResponse{
+				Leaves: []*trillian.LogLeaf{
+					&trillian.LogLeaf{
+						LeafValue: firstLeaf.Marshal(),
+						LeafIndex: 1,
+					},
+					&trillian.LogLeaf{
+						LeafValue: secondLeaf.Marshal()[1:],
+						LeafIndex: 2,
+					},
+				},
+			},
+			wantErr: true,
+		},
+		{
+			description: "valid",
+			req:         req,
+			rsp: &trillian.GetLeavesByRangeResponse{
+				Leaves: []*trillian.LogLeaf{
+					&trillian.LogLeaf{
+						LeafValue: firstLeaf.Marshal(),
+						LeafIndex: 1,
+					},
+					&trillian.LogLeaf{
+						LeafValue: secondLeaf.Marshal(),
+						LeafIndex: 2,
+					},
+				},
+			},
+			wantLeaves: &types.LeafList{
+				firstLeaf,
+				secondLeaf,
+			},
+		},
+	} {
+		// Run deferred functions at the end of each iteration
+		func() {
+			ctrl := gomock.NewController(t)
+			defer ctrl.Finish()
+			grpc := mockclient.NewMockTrillianLogClient(ctrl)
+			grpc.EXPECT().GetLeavesByRange(gomock.Any(), gomock.Any()).Return(table.rsp, table.err)
+			client := Client{GRPC: grpc}
+
+			leaves, err := client.GetLeaves(context.Background(), table.req)
+			if got, want := err != nil, table.wantErr; got != want {
+				t.Errorf("got error %v but wanted %v in test %q: %v", got, want, table.description, err)
+			}
+			if err != nil {
+				return
+			}
+			if got, want := leaves, table.wantLeaves; !reflect.DeepEqual(got, want) {
+				t.Errorf("got leaves\n\t%v\nbut wanted\n\t%v\nin test %q", got, want, table.description)
+			}
+		}()
+	}
+}