diff --git a/testsuite/meta/converter/laplacian_eigen_maps.dat b/testsuite/meta/converter/laplacian_eigen_maps.dat
new file mode 100644
index 00000000..ba31191b
--- /dev/null
+++ b/testsuite/meta/converter/laplacian_eigen_maps.dat
@@ -0,0 +1 @@
+{"name":"DynamicObjectArray","generic":13,"parameters":{"array":[{"name":"MatrixSerializable","generic":11,"parameters":{"name":"unmixed_signal","value":[[0.031651783200679729],[0.03038442710081255],[0.03165022240390117],[0.032096214287921958],[0.03194965232239769],[0.03191666699177746],[0.031632677481906377],[0.03169002137880429],[0.03174851428571719],[0.02738431507128228],[0.03217625992411085],[0.03176535203989749],[0.03173185035085439],[0.03176011315880432],[0.031631154344925308],[0.03152185275652509],[0.03204317337296812],[0.031558584743195717],[0.02648675943667902],[0.03097130176729321],[0.02768798144347068],[0.03152372464013177],[0.02872905590838845],[-0.010661155105297485],[-0.009929237438990112],[-0.010953675005643609],[-0.010853230968819352],[-0.010614646700172009],[-0.01068451048149869],[-0.01017816773276142],[-0.010673015852390387],[-0.010269933279415398],[-0.010380764109802902],[-0.009805989384211284],[-0.010602998172313475],[-0.010886471070293927],[-0.010785440547579862],[-0.01091870209253745],[-0.01038713464734847],[-0.010287478735960598],[-0.010641581706958637],[-0.011012825191119638],[-0.009553589139260946],[-0.010997868523997999],[-0.01042387885073718],[-0.010714901391334676],[-0.00991373773355419],[-0.008357414465724566],[-0.00980775845641237],[-0.0028291031695242138],[-0.009325991882957628],[-0.009783141145815692],[-0.009802088743776971],[-0.008011275447854289],[-0.010558397977232966],[-0.010387731654924702],[-0.009972638347469447],[-0.0063432136383037439],[-0.008735141859297767],[-0.009027931606716026],[-0.008696516841672079],[-0.009262389482298682],[-0.0076409889186784128],[-0.0033354884625817874],[-0.008170089317534406],[-0.008382385886382725],[-0.00784561234332369],[-0.008976409973740269],[-0.0079056348838012],[-0.010568395483026143],[-0.01036941320004657],[-0.007578816237326683],[-0.010157432715856922],[-0.010415862786227757],[-0.010845083380930499],[-0.005003079039621933],[-0.008893363554496391],[-0.010435428241163499],[-0.010710193592461093],[-0.009546169265044627],[-0.010703349831595436],[-0.010123485169777685],[-0.010083336735568887],[-0.006782021897111912],[-0.010000804689986157],[-0.010991582405210549],[-0.010349210861269394],[-0.010659453536993427],[-0.010529035417514437],[-0.010728005782173719],[-0.009626185385127145],[-0.010839674928622714]]}}],"dim1_size":1,"dim2_size":1}}
\ No newline at end of file