public void Executing_validates_arguments()
{
var logger = new DbCommandLogger(new StringWriter().Write);
Assert.Equal(
"command",
Assert.Throws <ArgumentNullException>(() => logger.Executing(null, new DbCommandInterceptionContext <int>())).ParamName);
Assert.Equal(
"interceptionContext",
Assert.Throws <ArgumentNullException>(() => logger.Executing(new Mock <DbCommand>().Object, null)).ParamName);
}
public void Executing_filters_by_context_when_set()
{
var context1 = new Mock <DbContext>().Object;
var context2 = new Mock <DbContext>().Object;
var writer = new StringWriter();
var logger = new DbCommandLogger(writer.Write);
logger.Executing(CreateCommand("That Sam-I-am!"), new DbCommandInterceptionContext <int>().WithDbContext(context1));
logger.Executing(CreateCommand("I do not like"), new DbCommandInterceptionContext <int>().WithDbContext(context2));
logger.Executing(CreateCommand("that Sam-I-am"), new DbCommandInterceptionContext <int>());
Assert.Equal("That Sam-I-am!", GetSingleLine(writer));
}
public void Executing_logs_every_command_when_context_not_set()
{
var context1 = new Mock <DbContext>().Object;
var context2 = new Mock <DbContext>().Object;
var writer = new StringWriter();
var logger = new DbCommandLogger(writer.Write);
logger.Executing(CreateCommand("Do you like"), new DbCommandInterceptionContext <int>());
logger.Executing(CreateCommand("Green eggs and ham?"), new DbCommandInterceptionContext <int>().WithDbContext(context1));
logger.Executing(CreateCommand("I do not like them"), new DbCommandInterceptionContext <int>().WithDbContext(context2));
var lines = GetLines(writer);
Assert.Equal("Do you like", lines[0]);
Assert.Equal("Green eggs and ham?", lines[2]);
Assert.Equal("I do not like them", lines[4]);
}