BenchmarkMockNet Results

January 12, 2026 · View on GitHub

Official Run: 01/12/2026

This test simply creates an IThing object to test using the given framework

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Stub	21.49 ns	138.32 ns	7.582 ns	23.59 ns	1.11	0.54	-	-	24 B	1.00
FakeItEasy	3,593.35 ns	43,803.37 ns	2,401.011 ns	2,710.07 ns	185.41	132.12	0.1600	0.0100	2714 B	113.08
JustMockLite	18,665.15 ns	86,296.99 ns	4,730.229 ns	16,023.18 ns	963.11	416.62	1.0100	0.0100	16905 B	704.38
Moq	3,389.60 ns	43,891.93 ns	2,405.865 ns	2,762.42 ns	174.90	130.40	0.1100	-	1928 B	80.33
NSubstitute	4,283.51 ns	49,827.63 ns	2,731.220 ns	3,788.84 ns	221.03	152.22	0.2900	-	5000 B	208.33
PCLMock	80.28 ns	743.71 ns	40.765 ns	78.24 ns	4.14	2.45	-	-	144 B	6.00
Rocks	85.59 ns	627.05 ns	34.371 ns	87.99 ns	4.42	2.29	-	-	128 B	5.33

A mock object is created, a method is setup to a return and int value, and that method is called

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Stub	20.17 ns	139.97 ns	7.672 ns	22.40 ns	1.13	0.61	-	-	24 B	1.00
FakeItEasy	5,456.52 ns	65,845.32 ns	3,609.204 ns	4,034.27 ns	306.21	224.42	0.2800	0.0100	4768 B	198.67
JustMockLite	175,045.86 ns	152,520.15 ns	8,360.144 ns	170,285.51 ns	9,823.15	3,975.38	2.0600	2.0500	34512 B	1,438.00
Moq	6,016.94 ns	77,679.15 ns	4,257.856 ns	4,399.64 ns	337.66	259.67	0.2200	-	3704 B	154.33
NSubstitute	5,751.69 ns	80,943.24 ns	4,436.772 ns	3,204.35 ns	322.77	264.65	0.4300	0.0100	7280 B	303.33
PCLMock	4,146.55 ns	16,125.52 ns	883.894 ns	4,655.18 ns	232.69	104.27	0.1100	-	1841 B	76.71
Rocks	230.06 ns	1,035.11 ns	56.738 ns	216.29 ns	12.91	5.97	0.0100	-	296 B	12.33

A mock object is created, with no method setup, and an method returning an int is called

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Stub	19.83 ns	135.49 ns	7.426 ns	22.22 ns	1.13	0.60	-	-	24 B	1.00
FakeItEasy	4,316.82 ns	52,552.66 ns	2,880.589 ns	3,414.27 ns	245.65	180.46	0.2100	0.0100	3587 B	149.46
JustMockLite	25,067.30 ns	158,019.49 ns	8,661.582 ns	20,087.29 ns	1,426.49	728.43	1.2100	0.1300	20340 B	847.50
Moq	4,054.16 ns	55,854.29 ns	3,061.562 ns	3,123.85 ns	230.71	185.51	0.1300	-	2232 B	93.00
NSubstitute	4,786.88 ns	68,645.10 ns	3,762.670 ns	2,819.85 ns	272.40	225.83	0.3400	-	5696 B	237.33
PCLMock	4,196.68 ns	16,997.38 ns	931.684 ns	4,717.15 ns	238.82	107.01	0.1100	-	1840 B	76.67
Rocks	274.37 ns	903.24 ns	49.510 ns	272.05 ns	15.61	6.74	0.0100	-	296 B	12.33

A mock object is created, with no method setup, and a method with no return value is called

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Stub	20.61 ns	145.47 ns	7.973 ns	23.00 ns	1.14	0.62	-	-	24 B	1.00
FakeItEasy	3,768.86 ns	52,319.64 ns	2,867.816 ns	2,212.00 ns	208.21	170.41	0.2100	0.0100	3562 B	148.42
JustMockLite	25,349.78 ns	161,795.32 ns	8,868.547 ns	20,270.98 ns	1,400.47	735.22	1.2000	0.1300	20228 B	842.83
Moq	3,124.05 ns	44,869.64 ns	2,459.456 ns	1,875.75 ns	172.59	144.92	0.1300	-	2208 B	92.00
NSubstitute	5,516.25 ns	76,864.06 ns	4,213.179 ns	3,749.82 ns	304.75	250.11	0.3400	-	5696 B	237.33
PCLMock	4,456.32 ns	7,878.98 ns	431.874 ns	4,548.63 ns	246.19	103.88	0.1000	-	1832 B	76.33
Rocks	203.02 ns	722.59 ns	39.607 ns	195.15 ns	11.22	5.05	0.0100	-	288 B	12.00

A mock object is created, with no method setup, and a method with no return value requiring an int parameter is called

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Stub	20.46 ns	140.27 ns	7.689 ns	22.79 ns	1.13	0.60	-	-	24 B	1.00
FakeItEasy	3,891.52 ns	50,889.04 ns	2,789.400 ns	2,436.65 ns	214.66	165.97	0.2100	0.0100	3700 B	154.17
JustMockLite	25,235.37 ns	158,960.11 ns	8,713.140 ns	20,236.10 ns	1,392.02	710.14	1.2300	0.1300	20700 B	862.50
Moq	3,186.56 ns	42,964.85 ns	2,355.048 ns	1,918.29 ns	175.77	139.02	0.1300	-	2240 B	93.33
NSubstitute	4,669.42 ns	67,416.89 ns	3,695.348 ns	2,584.60 ns	257.57	214.59	0.3400	-	5728 B	238.67
PCLMock	144,182.53 ns	76,048.70 ns	4,168.486 ns	142,728.99 ns	7,953.29	3,171.16	0.6200	0.6100	10433 B	434.71
Rocks	393.59 ns	1,195.32 ns	65.520 ns	394.42 ns	21.71	9.26	0.0200	-	352 B	14.67

A mock object is created, a method is setup with a callback, and that method is called

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Stub	24.89 ns	145.79 ns	7.991 ns	28.25 ns	1.09	0.49	-	-	24 B	1.00
FakeItEasy	5,492.33 ns	70,803.17 ns	3,880.961 ns	3,674.48 ns	240.60	174.42	0.2900	0.0100	4977 B	207.38
JustMockLite	151,157.06 ns	138,721.73 ns	7,603.806 ns	147,376.00 ns	6,621.64	2,249.81	2.0400	2.0300	34166 B	1,423.58
Moq	6,100.52 ns	78,576.47 ns	4,307.041 ns	4,349.21 ns	267.24	193.61	0.2300	-	3864 B	161.00
NSubstitute	5,387.40 ns	69,316.73 ns	3,799.484 ns	3,222.74 ns	236.00	170.83	0.4000	0.0100	6720 B	280.00
PCLMock	4,697.58 ns	16,504.49 ns	904.667 ns	5,183.29 ns	205.78	78.08	0.1200	-	2020 B	84.17
Rocks	271.79 ns	994.72 ns	54.524 ns	261.19 ns	11.91	4.56	0.0200	-	376 B	15.67

Verifies that the method was called

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Stub	23.52 ns	134.00 ns	7.345 ns	25.84 ns	1.08	0.46	-	-	24 B	1.00
FakeItEasy	6,152.69 ns	75,127.51 ns	4,117.993 ns	4,302.60 ns	283.15	193.65	0.3100	0.0100	5282 B	220.08
JustMockLite	54,350.14 ns	198,241.28 ns	10,866.274 ns	48,328.92 ns	2,501.22	916.16	2.3700	0.5900	39701 B	1,654.21
Moq	5,730.38 ns	79,291.73 ns	4,346.247 ns	3,725.30 ns	263.71	199.42	0.2200	-	3792 B	158.00
NSubstitute	5,849.46 ns	70,546.37 ns	3,866.884 ns	3,636.01 ns	269.19	182.34	0.4300	-	7208 B	300.33
PCLMock	4,835.97 ns	51,323.25 ns	2,813.201 ns	5,743.62 ns	222.55	136.86	0.1500	-	2560 B	106.67
Rocks	723.61 ns	1,187.09 ns	65.068 ns	700.01 ns	33.30	10.95	0.0300	-	600 B	25.00