defmodule Mix.Tasks.ExampleTest do
use Mix.Task
import Sparklinex
@output_dir "test/actual"
@test_data [
1,
5,
15,
20,
30,
50,
57,
58,
55,
48,
44,
43,
42,
42,
46,
48,
49,
53,
55,
59,
60,
65,
75,
90,
105,
106,
107,
110,
115,
120,
115,
120,
130,
140,
150,
160,
170,
100,
100,
10
]
def run(_) do
File.mkdir_p(@output_dir)
basic_graphs = [:smooth]
basic_graphs
|> Enum.each(
fn graph_type ->
quick_graph("#{graph_type}", %{type: graph_type})
quick_graph("labeled_#{graph_type}", %{type: graph_type, label: "Glucose"})
end
)
write_html()
end
def quick_graph(name, options) do
@test_data
|> graph(options)
|> graph_to_file("#{@output_dir}/#{name}.png")
end
defp write_html do
{:ok, file} = File.open "test/actual/index.html", [:write]
IO.binwrite(file, html_header())
IO.binwrite(file, table_header())
Path.wildcard("test/expected/*")
|> Enum.each(fn test_file -> IO.binwrite(file, table_row(test_file)) end)
IO.binwrite(file, close())
File.close(file)
end
defp table_row(file) do
"""
| #{image_tag("../../#{file}")} |
#{image_tag("../../#{String.replace(file, "expected", "actual")}")} |
"""
end
defp image_tag(path) do
~s(
)
end
defp html_header do
"""
"""
end
defp table_header do
"""
| Expected |
Actual |
"""
end
defp close do
"""
"""
end
end