query: How come some testfor commands don't return anything?
positive_passages.docid: 8442
positive_passages.text: Why does testfor sometimes output an error?
negative_passages.docid: 45347
negative_passages.text: How do you know what to test when writing unit tests?
negative_passages.docid: 35693
negative_passages.text: Why doesn't calling a Python string method do anything unless you assign its output?
negative_passages.docid: 106315
negative_passages.text: Is it useful to test the return of "new" in C++?
negative_passages.docid: 134393
negative_passages.text: Evaluating the return value of a command line
negative_passages.docid: 97030
negative_passages.text: A program's output seems to be neither stdout nor stderr?
negative_passages.docid: 75335
negative_passages.text: Bash test: what does "=~" do?
negative_passages.docid: 143939
negative_passages.text: How do you use: isalnum, isdigit, isupper to test each character of a string?
negative_passages.docid: 86558
negative_passages.text: How do you generate dynamic (parameterized) unit tests in Python?
negative_passages.docid: 33323
negative_passages.text: Covering if-else conditions in a Testclass
negative_passages.docid: 89609
negative_passages.text: Using expect for inputting commands
negative_passages.docid: 52584
negative_passages.text: Is test or [ or [[ more portable both between bash shells and between other shells?
negative_passages.docid: 25968
negative_passages.text: What is the unix test -f command equivalent in powershell?
negative_passages.docid: 50076
negative_passages.text: How to test that no exception is thrown?
negative_passages.docid: 79185
negative_passages.text: Is assert(false) ignored in release mode?
negative_passages.docid: 44855
negative_passages.text: Is it a bug in Ecmascript - /\S/.test(null) returns true?
negative_passages.docid: 1208
negative_passages.text: How to test multiple variables against a single value?