Add test (#7801)

test/tests/vectorpostprocessors/volume_histogram/gold/volume_histogram_out_histo_0002.csv

@@ -0,0 +1,52 @@
+c,n
+0.011,0.45
+0.033,0.45
+0.055,0.45
+0.077,0.4
+0.099,0.4
+0.121,0.35
+0.143,0.3
+0.165,0.35
+0.187,0.25
+0.209,0.25
+0.231,0.3
+0.253,0.2
+0.275,0.25
+0.297,0.25
+0.319,0.2
+0.341,0.2
+0.363,0.2
+0.385,0.2
+0.407,0.2
+0.429,0.15
+0.451,0.2
+0.473,0.2
+0.495,0.2
+0.517,0.2
+0.539,0.2
+0.561,0.25
+0.583,0.2
+0.605,0.25
+0.627,0.3
+0.649,0.3
+0.671,0.35
+0.693,0.5
+0.715,1.05
+0.737,0
+0.759,0
+0.781,0
+0.803,0
+0.825,0
+0.847,0
+0.869,0
+0.891,0
+0.913,0
+0.935,0
+0.957,0
+0.979,0
+1.001,0
+1.023,0
+1.045,0
+1.067,0
+1.089,0
+

test/tests/vectorpostprocessors/volume_histogram/tests

@@ -0,0 +1,7 @@
+[Tests]
+  [./test]
+    type = CSVDiff
+    input = volume_histogram.i
+    csvdiff = 'volume_histogram_out_histo_0002.csv'
+  [../]
+[]

test/tests/vectorpostprocessors/volume_histogram/volume_histogram.i

@@ -0,0 +1,58 @@
+[Mesh]
+  type = GeneratedMesh
+  dim = 1
+  nx = 200
+  xmin = -5
+  xmax = 5
+[]
+
+[Variables]
+  [./c]
+    [./InitialCondition]
+      type = FunctionIC
+      function = 'x<2&x>-2'
+    [../]
+  [../]
+[]
+
+[Kernels]
+  [./diff]
+    type = Diffusion
+    variable = c
+  [../]
+  [./time]
+    type = TimeDerivative
+    variable = c
+  [../]
+[]
+
+[BCs]
+  [./all]
+    type = DirichletBC
+    variable = c
+    boundary = 'left right'
+    value = 0
+  [../]
+[]
+
+[VectorPostprocessors]
+  [./histo]
+    type = VolumeHistogram
+    variable = c
+    min_value = 0
+    max_value = 1.1
+    execute_on = 'initial timestep_end'
+  [../]
+[]
+
+[Executioner]
+  type = Transient
+  num_steps = 2
+  dt = 1
+  solve_type = PJFNK
+[]
+
+[Outputs]
+  execute_on = 'initial timestep_end'
+  csv = true
+[]