diff --git a/test/runtests.jl b/test/runtests.jl
index d0f805e..8d704bb 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -7,8 +7,8 @@ using Test
 
     sample_log_2 = CoordVisualize.CoordLog{Float64}([895.0 7.0 -978.0; 895.0 7.0 -978.0; 895.0 7.0 -977.38684082031; 895.0 7.0 -975.71923828125; 897.0 7.0 -974.39855957031; 898.80633544922 7.0 -973.0; 901.38275146484 7.0 -973.0; 904.18518066406 7.0 -973.0; 907.25793457031 7.0 -973.0; 911.19061279297 7.0 -973.0; 915.05682373047 7.0 -973.0; 919.1259765625 7.0 -973.0; 923.12609863281 7.0 -973.0; 926.94378662109 7.0 -973.0; 930.82952880859 7.0 -973.0; 934.84539794922 7.0 -973.0; 938.83020019531 7.0 -973.0; 944.04681396484 8.0 -973.0; 948.01483154297 8.0148372650146 -973.0; 951.48193359375 9.0000009536743 -973.0; 955.5927734375 10.000000953674 -973.0; 954.96008300781 10.000000953674 -973.0; 958.39764404297 11.000000953674 -973.0; 962.41009521484 12.000000953674 -973.0; 966.17108154297 12.000000953674 -973.0; 969.40936279297 12.000000953674 -973.0; 969.47576904297 13.0 -973.0; 973.32684326172 13.0 -973.0; 977.21990966797 13.0 -973.0; 981.09814453125 13.0 -973.0; 985.05871582031 13.0 -973.0; 989.03479003906 13.0 -973.0; 992.83026123047 13.0 -973.0; 996.90203857422 13.0 -973.0], DateTime("0000-01-01T00:00:00"), "")
 
+    sample_result = CoordVisualize.parse_log("sample_log.txt"; interactive=false)
     @testset "parse" begin
-        sample_result = CoordVisualize.parse_log("sample_log.txt"; interactive=false)
         @debug sample_result
         @testset "parse with datetime" begin
             @debug sample_result[1]
@@ -24,4 +24,16 @@ using Test
             @test sample_result[2].note == sample_log_2.note
         end
     end
+
+    @testset "edit" begin
+        @testset "note" begin
+            CoordVisualize.assign_note!(sample_log_1[1], "test string ✅")
+            @test sample_log_1[1].note == "test string ✅"
+            @test sample_result[1].coords == sample_log_1[1].coords
+            @test sample_result[1].logdate == sample_log_1[1].logdate
+
+            CoordVisualize.assign_note!(sample_log_2, "test string ✅")
+            @test sample_log_2.note == "test string ✅"
+        end
+    end
 end