The gotest parser used a bufio.Scanner to read its input, which
prevented us from reading lines larger than 64K.
In order to support reading larger lines, bufio.Scanner has been
replaced with bufio.Reader. The maximum line size has been increased to
4MiB and instead of returning an error when reading lines that exceed
the maximum size, we truncate that line and continue parsing.
Fixes#135
In some cases we may have captured some output for a package that didn't
have any tests. We should include it in the generated report as it may
contain useful information.
The junit package shouldn't need to know anything about benchmarks and
gtr.Benchmark will be removed in a future commit. Instead, it will be
the responsibility of the gotest parser to represent benchmarks using
gtr.Test.
When we encounter a failure but there was not failing test, we create a
failing dummy test in the report. This is to prevent the failure from
being overlooked.
The case where the output contained a failing benchmark was not handled
correctly, resulting in a dummy test failure being added to the report
unnecessarily.
Benchmark durations were originally formatted with higher precision
because they contained just the NsPerOp field. Now that we're
approximating the total duration they are more accurate and don't need
as many decimals.
The NsPerOp was previously casted to a time.Duration (int64) before
multiplying it with the number of iterations. This has been fixed by
doing the casting after the multiplication. The resulting duration
should be a bit more accurate.
The reportBuilder has been updated to use the ordered output collector
to keep track of go test output. This makes it possible to include
benchmark output in the generated report and makes sure that output is
preserved when deleting subtest parents from the report.
Having multiple benchmarks for a single name is something specific to
the gotest output, so grouping benchmarks by name is not something that
belongs in the junit package.
This function was used in the past to perform some operations on the
individual output lines before joining them together. However, now it's
only used to combine the collection of lines into a single output
string.
The consequence of this is that any output emitted after the test or
benchmark result, will no longer belong to the last test. Instead it
will be appended to the global log. This is necessary to correctly
attribute output to the correct test or benchmark, for example in cases
where both tests and benchmarks appear.
In the past, Go test output printed test logs after the test result.
However, from Go 1.14 this behaviour was changed and test logs are now
printed before the test result.
With this commit, we effectively no longer support the old behaviour in
Go1.13 and earlier. The output will still appear in the generated
report, however it will no longer belong to the correct test.
Many of the testdata files were generated a long time ago with very old
versions of Go. The Go test output has changed over time, and these test
inputs no longer reflect the current state. The intention is to fully
support the test output of the most recent Go versions.
This commit also includes the source used to generate the test output,
so the output can be more easily updated in the future.
Whitespace prefix of output lines was carried over from the old v1
version, but in some cases it removes too much whitespace. Ideally it
would detect the common prefix of all output lines for a given text and
only trim that. Until that's fixed, let's just stop removing the
whitespace.
Fixes#131
There was some code duplication between the go-junit-report binary, its
tests and the testdata/generate-golden script. This has been moved into
an internal package. The go-junit-report binary can now just focus on
flag parsing and validation, and it should be less likely that the
binary, tests and golden report generator behave differently.
