Aquarium Heater Calculator Test Framework

Conversion utilities test

cm_to_inch conversion
Input	Should be	Is
0	0	0
2.54	1	0.999998
1	0.3937	0.3937

mm_to_inch conversion
Input	Should be	Is
0	0	0
25.4	1	0.999998
1	0.03937	0.03937

dtC_to_dtF conversion
Input	Should be	Is
0	0	0
1	1.8	1.8
0.555556	1	1.0000008

dtF_to_dtC conversion
Input	Should be	Is
0	0	0
1	0.555556	0.555555555555556
1.8	1	1

Volume / mass calculations

gw calc
Input	Should be	Is
1,1,1	16.387	16.387
36,12,16	113266.94	113266.944

gr calc
Input	Should be	Is
36,18,12,0.375,0.125,0.375,ACRYLIC	16848.45	16848.45792

big G calc
Input	Should be	Is
36,18,12,0.375,0.125,0.375,ACRYLIC,2	131080.28	131080.2946992

Surface area calculation

Adjusted surface area
Input	Should be	Is	Comment
1,1,1,0.1,0.1,0.1,1,1	6	6	everything normal
1,1,1,0.1,0.1,0.1,1,2	7	7	bottom sucks heat
1,1,1,0.1,0.1,0.1,1,0.5	5.5	5.5	bottom saves heat
1,1,1,0.1,0.05,0.1,1,1	7	7	top thinner
18,36,12,0.375,0.125,0.375,0.0004,0.0005	3564	3564	first example
14,480,12,0.25,0.125,0.25,0.002,0.00009	25555	25555.2	second example
12,20,10,0.125,0.125,0.125,0.002,0.0005	970	970	10 gal glass
16,36,12,3/16,0.125,3/16,0.002,0.0005	-	2292	30 gal glass
21,48,12,0.25,0.125,0.25,0.002,0.0005	-	3816	55 gal glass

Wattage calculations

Minimum wattage calculation
Input	Should be	Is	Comment
0.002,970,16,0.125	83.7	83.7087547733333	10 gallon glass
0.002,2292,16,3/16	131.85	131.862863189333	30 gallon glass
0.002,3816,16,0.25	164.655	164.655983616	55 gallon glass

Wattage calculation
Input	Should be	Is	Comment
0.0004,3564,14,0.9,0.375	19.93	19.9347456	first example
0.002,25555,23,0.9,0.25	1761.2	1761.20516888889	second example
0.002,970,16,0.9,0.125	-	93.0096355555556	10 gallon glass
0.002,2292,16,0.9,3/16	-	146.514147555556	30 gallon glass
0.002,3816,16,0.9,0.25	-	182.950912	55 gallon glass

Heat loss constant - p

Heat loss constant calculation
Input	Should be	Is
0.5	1.39	1.386
0.55	1.45	1.452
0.6	1.53	1.527
0.65	1.62	1.615
0.7	1.72	1.720
0.75	1.85	1.848
0.8	2.01	2.011
0.85	2.23	2.231
0.9	2.56	2.558
0.95	3.15	3.152
0.99	4.64	4.644

Heating time

Heating time
Input	Should be	Is
2.56, 131080.28, 14, 19.93	8.69	8.68631460698043