tSQLt doesn't support contained/partially contained databases. A number of collation issues (due to the changed in system catalogs - the sys* tables) means that tSQLt cannot be installed if the database collation is not Latin1_General_100_CI_AS_KS_WS_SC.

Msg 468, Level 16, State 9, Procedure Private_GetCursorForRunNew, Line 10 Cannot resolve the collation conflict between "Latin1_General_100_CI_AS_KS_WS_SC" and "Latin1_General_CI_AS" in the equal to operation. Msg 451, Level 16, State 1, Procedure Private_ScriptIndex, Line 32 Cannot resolve collation conflict between "Latin1_General_CI_AS" and "Latin1_General_100_CI_AS_KS_WS_SC" in add operator occurring in SELECT statement column 6. Msg 451, Level 16, State 1, Procedure Private_GetForeignKeyDefinition, Line 17 Cannot resolve collation conflict between "Latin1_General_CI_AS" and "Latin1_General_100_CI_AS_KS_WS_SC" in add operator occurring in SELECT statement column 1. Msg 451, Level 16, State 1, Procedure Private_GetForeignKeyDefinition, Line 17 Cannot resolve collation conflict between "Latin1_General_CI_AS" and "Latin1_General_100_CI_AS_KS_WS_SC" in add operator occurring in SELECT statement column 2. Msg 451, Level 16, State 1, Procedure Private_GetDataTypeOrComputedColumnDefinition, Line 4 Cannot resolve collation conflict between "Latin1_General_100_CI_AS_KS_WS_SC" and "Latin1_General_CI_AS" in CASE operator occurring in SELECT statement column 2. Msg 208, Level 16, State 1, Procedure Private_GetUniqueConstraintDefinition, Line 47 Invalid object name 'tSQLt.Private_GetDataTypeOrComputedColumnDefinition'.