[exporter/elasticsearch] Add test case for de-dotting log documents (o…

…pen-telemetry#32134)

This PR adds a test case to ensure that log documents are de-dotted
correctly when `dedot: true` is set.

exporter/elasticsearchexporter/model_test.go

@@ -23,6 +23,7 @@ var expectedSpanBody = `{"@timestamp":"2023-04-19T03:04:05.000000006Z","Attribut
 var expectedLogBody = `{"@timestamp":"2023-04-19T03:04:05.000000006Z","Attributes.log-attr1":"value1","Body":"log-body","Resource.key1":"value1","Scope.name":"","Scope.version":"","SeverityNumber":0,"TraceFlags":0}`
 
 var expectedLogBodyWithEmptyTimestamp = `{"@timestamp":"1970-01-01T00:00:00.000000000Z","Attributes.log-attr1":"value1","Body":"log-body","Resource.key1":"value1","Scope.name":"","Scope.version":"","SeverityNumber":0,"TraceFlags":0}`
+var expectedLogBodyDeDottedWithEmptyTimestamp = `{"@timestamp":"1970-01-01T00:00:00.000000000Z","Attributes":{"log-attr1":"value1"},"Body":"log-body","Resource":{"foo":{"bar":"baz"},"key1":"value1"},"Scope":{"name":"","version":""},"SeverityNumber":0,"TraceFlags":0}`
 
 func TestEncodeSpan(t *testing.T) {
  model := &encodeModel{dedup: true, dedot: false}
@@ -49,6 +50,15 @@ func TestEncodeLog(t *testing.T) {
  assert.NoError(t, err)
  assert.Equal(t, expectedLogBodyWithEmptyTimestamp, string(logByte))
  })
+
+ t.Run("dedot true", func(t *testing.T) {
+ model := &encodeModel{dedup: true, dedot: true}
+ td := mockResourceLogs()
+ td.Resource().Attributes().PutStr("foo.bar", "baz")
+ logByte, err := model.encodeLog(td.Resource(), td.ScopeLogs().At(0).LogRecords().At(0), td.ScopeLogs().At(0).Scope())
+ require.NoError(t, err)
+ require.Equal(t, expectedLogBodyDeDottedWithEmptyTimestamp, string(logByte))
+ })
 }
 
 func mockResourceSpans() ptrace.Traces {