<p></p>
<p>Maybe we could enhance the test framework a bit to provide some very basic mock object for the osm2pgsql functionality provided by osm2pgsql. I believe this isn't supported by tests.lua as of now.</p>
<p>(file osm2pgsql-mock.lua)</p>
<pre><code>local osm2pgsql = {}

local inspect = require('inspect')

result = {}

function osm2pgsql.define_table(o)

   local mock_table = {}

   mock_table.name = o.name
   mock_table.ids = o.ids
   mock_table.columns = o.columns

   function mock_table.add_row(x, y)
--      print(inspect(x))
--      print(inspect(y))
      result = y
         
   end

   return mock_table
end


function osm2pgsql.get_mock_result()
  return result
end

return osm2pgsql
</code></pre>
<p>File test.lua:</p>
<pre><code>osm2pgsql = require 'osm2pgsql-mock'
require 'openstreetmap-carto'


print("Running tests...")

x = {}
x.tags = {}
x.tags["highway"] = "bus_stop"
x.tags["layer"] = "1"

osm2pgsql.process_node(x)

r = osm2pgsql.get_mock_result()

assert(r["highway"] == 'bus_stop')

print("Done...")
</code></pre>
<p>Executing test from command line:</p>
<pre><code>lua test.lua 
Running tests...
Done...
</code></pre>

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