Module:TwitterSnowflake/testcases

 -- Unit tests for [[Module:TwitterSnowflake]]. Click talk page to run tests. 
 localp=require('Module:UnitTests')

 -- test snowflakeToDate

 functionp:test_snowflakeToDate_only_id()-- default date format is "Month Day, Year"
 self:preprocess_equals('{{#invoke:TwitterSnowflake | snowflakeToDate | id_str = 1345021162959503360}}','January 1, 2021')
 end

 functionp:test_snowflakeToDate_custom_output_format()-- tests date format "Day Month Year"
 self:preprocess_equals('{{#invoke:TwitterSnowflake | snowflakeToDate | id_str = 1345021162959503360 | format = %e %B %Y}}',' 1 January 2021')
 end

 functionp:test_snowflakeToDate_custom_epoch()-- uses Discord's epoch
 self:preprocess_equals('{{#invoke:TwitterSnowflake | snowflakeToDate | id_str = 797545051047460888 | epoch = 1420070400}}','January 9, 2021')
 end

 functionp:test_snowflakeToDate_weird_breaking_date()-- this one used to break old versions of the script, outputting "April 11, 2011"
 self:preprocess_equals('{{#invoke:TwitterSnowflake | snowflakeToDate | id_str = 574608900537761792}}','March 8, 2015')
 end

 -- test getDate

 functionp:test_getDate_date_off_by_five()-- date off by five days, so this returns "5"
 self:preprocess_equals('{{#invoke:TwitterSnowflake | getDate | id_str = 1345021162959503360 | date = January 6, 2021}}','5')
 end

 functionp:test_getDate_date_off_by_one()-- date off by one day, so this returns "1"
 self:preprocess_equals('{{#invoke:TwitterSnowflake | getDate | id_str = 1345021162959503360 | date = January 2, 2021}}','1')
 end

 functionp:test_getDate_date_match()-- date matches, so this returns "0"
 self:preprocess_equals('{{#invoke:TwitterSnowflake | getDate | id_str = 1345021162959503360 | date = January 1, 2021}}','0')
 end

 functionp:test_getDate_before_epoch()-- posted before epoch, so this returns "-1" (date isn't correct here, but that's irrelevant — it can't check it either way)
 self:preprocess_equals('{{#invoke:TwitterSnowflake | getDate | id_str = 20 | date = January 1, 2015}}','-1')
 end

 functionp:test_getDate_invalid_id_str()-- id_str is invalid, so this returns "-2"
 self:preprocess_equals('{{#invoke:TwitterSnowflake | getDate | id_str = 1345021162959503360?s=19 | date = January 1, 2021}}','-2')
 end

 --sandbox tests for snowflakeToDate

 functionp:test_zzsandbox_snowflakeToDate_only_id()-- default date format is "Month Day, Year"
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | snowflakeToDate | id_str = 1345021162959503360}}','January 1, 2021')
 end

 functionp:test_zzsandbox_snowflakeToDate_custom_output_format()-- tests date format "Day Month Year"
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | snowflakeToDate | id_str = 1345021162959503360 | format = %e %B %Y}}',' 1 January 2021')
 end

 functionp:test_zzsandbox_snowflakeToDate_custom_epoch()-- uses Discord's epoch
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | snowflakeToDate | id_str = 797545051047460888 | epoch = 1420070400}}','January 9, 2021')
 end

 functionp:test_zzsandbox_snowflakeToDate_weird_breaking_date()-- this one used to break old versions of the script, outputting "April 11, 2011"
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | snowflakeToDate | id_str = 574608900537761792}}','March 8, 2015')
 end

 --sandbox tests for getDate

 functionp:test_zzsandbox_getDate_date_off_by_five()-- date off by five days, so this returns "5"
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | getDate | id_str = 1345021162959503360 | date = January 6, 2021}}','5')
 end

 functionp:test_zzsandbox_getDate_date_off_by_one()-- date off by one day, so this returns "1"
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | getDate | id_str = 1345021162959503360 | date = January 2, 2021}}','1')
 end

 functionp:test_zzsandbox_getDate_date_match()-- date matches, so this returns "0"
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | getDate | id_str = 1345021162959503360 | date = January 1, 2021}}','0')
 end

 functionp:test_zzsandbox_getDate_before_epoch()-- posted before epoch, so this returns "-1" (date isn't correct here, but that's irrelevant — it can't check it either way)
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | getDate | id_str = 20 | date = January 1, 2015}}','-1')
 end

 functionp:test_zzsandbox_getDate_invalid_id_str()-- id_str is invalid, so this returns "-2"
 self:preprocess_equals('{{#invoke:TwitterSnowflake/sandbox | getDate | id_str = 1345021162959503360?s=19 | date = January 1, 2021}}','-2')
 end

 returnp