add unit tests

test/plugins/orders.lua

@@ -9,38 +9,61 @@ local TMP_FILE_NAME = 'tmp-test'
 local TMP_FILE_PATH = FILE_PATH_PATTERN:format(TMP_FILE_NAME)
 
 local function test_wrapper(test_fn)
-    -- save active orders
+    -- backup and clear active orders
     dfhack.run_command_silent{'orders', 'export', BACKUP_FILE_NAME}
+    dfhack.run_command_silent{'orders', 'clear'}
+    df.global.world.manager_order_next_id = 0
     return dfhack.with_finalize(
         function()
-            -- clear test orders, restore original orders, remove temp file
+            -- clear test orders, restore original orders, remove temp files
             dfhack.run_command_silent{'orders', 'clear'}
-            print('reimporting')
             dfhack.run_command_silent{'orders', 'import', BACKUP_FILE_NAME}
+            df.global.world.manager_order_next_id =
+                    #df.global.world.manager_orders
             os.remove(BACKUP_FILE_PATH)
+            os.remove(TMP_FILE_PATH)
         end,
         test_fn)
 end
 config.wrapper = test_wrapper
 
+-- returns export command result and exported file content
+function run_orders_export()
+    local _, result = dfhack.run_command_silent{'orders', 'export',
+                                                TMP_FILE_NAME}
+    local f = io.open(TMP_FILE_PATH, 'r')
+    return dfhack.with_finalize(
+        function() f:close() end,
+        function() return result, f:read('*all') end)
+end
+
 function run_orders_import(file_content)
     local f = io.open(TMP_FILE_PATH, 'w')
     f:write(file_content)
     f:close()
-
-    return dfhack.with_finalize(
-        function()
-            os.remove(TMP_FILE_PATH)
-        end,
-        function()
     return dfhack.run_command_silent{'orders', 'import', TMP_FILE_NAME}
-        end
-    )
 end
 
-function check_import_success(file_content)
+local function normalize_whitespace(str)
+    return str:gsub('%s+', ' '):trim()
+end
+
+function check_export_success(expected_file_content)
+    local result, file_content = run_orders_export()
+    expect.eq(result, CR_OK)
+
+    -- ignore whitespace (otherwise the expected file content is impossible to
+    -- format properly in this file)
+    expect.eq(normalize_whitespace(expected_file_content),
+              normalize_whitespace(file_content))
+end
+
+function check_import_success(file_content, comment, num_expected_orders)
+    local prev_num_orders = #df.global.world.manager_orders
     local output, result = run_orders_import(file_content)
     expect.eq(result, CR_OK)
+    expect.eq(prev_num_orders + num_expected_orders,
+              #df.global.world.manager_orders)
 end
 
 function check_import_fail(file_content, comment, prefix)
@@ -55,7 +78,7 @@ function check_import_fail(file_content, comment, prefix)
 end
 
 function test.import_empty()
-    check_import_success('[]')
+    check_import_success('[]', 'empty input', 0)
 end
 
 function test.import_non_array()
@@ -141,3 +164,96 @@ function test.import_valid_and_invalid_orders()
         ]
     ]], 'empty order before valid order')
 end
+
+function test.import_export_reaction_condition()
+    local file_content = [[
+        [
+            {
+                "amount_left" : 1,
+                "amount_total" : 1,
+                "frequency" : "Daily",
+                "id" : 0,
+                "is_active" : false,
+                "is_validated" : false,
+                "item_conditions" :
+                [
+                    {
+                        "condition" : "AtLeast",
+                        "contains" :
+                        [
+                            "lye"
+                        ],
+                        "reaction_id" : "MAKE_SOAP_FROM_TALLOW",
+                        "value" : 5
+                    }
+                ],
+                "job" : "CustomReaction",
+                "reaction" : "MAKE_SOAP_FROM_TALLOW"
+            }
+        ]
+    ]]
+    check_import_success(file_content, 'valid reaction condition', 1)
+    check_export_success(file_content)
+end
+
+local function get_last_order()
+    return df.global.world.manager_orders[#df.global.world.manager_orders-1]
+end
+
+function test.import_invalid_reaction_conditions()
+    check_import_success([[
+        [
+            {
+                "amount_left" : 1,
+                "amount_total" : 1,
+                "frequency" : "OneTime",
+                "id" : 0,
+                "is_active" : false,
+                "is_validated" : true,
+                "item_conditions" :
+                [
+                    {
+                        "condition" : "AtLeast",
+                        "contains" :
+                        [
+                            "lye"
+                        ],
+                        "reaction_id" : "MAKE_SOAP_FROM_TALLOW_xxx",
+                        "value" : 5
+                    }
+                ],
+                "job" : "CustomReaction",
+                "reaction" : "MAKE_SOAP_FROM_TALLOW"
+            }
+        ]
+    ]], 'condition ignored for bad reaction id', 1)
+    expect.eq(0, #get_last_order().item_conditions)
+
+    check_import_success([[
+        [
+            {
+                "amount_left" : 1,
+                "amount_total" : 1,
+                "frequency" : "OneTime",
+                "id" : 0,
+                "is_active" : false,
+                "is_validated" : true,
+                "item_conditions" :
+                [
+                    {
+                        "condition" : "AtLeast",
+                        "contains" :
+                        [
+                            "lye_xxx"
+                        ],
+                        "reaction_id" : "MAKE_SOAP_FROM_TALLOW",
+                        "value" : 5
+                    }
+                ],
+                "job" : "CustomReaction",
+                "reaction" : "MAKE_SOAP_FROM_TALLOW"
+            }
+        ]
+    ]], 'condition ignored for bad reagent name', 1)
+    expect.eq(0, #get_last_order().item_conditions)
+end