# This is the case reported in issue #69203. Setting GO111MODULE # off sets the Go version used to determine default GODEBUG settings # to Go 1.20, flipping the httplaxcontentlength godebug's value to "1". # Doing so causes net/http.TestReadResponseErrors to fail. # Before CL 610875, the default GODEBUG was only sometimes used to generate the actionID # for a link: if the binary being linked was package main, the default GODEBUG would be # embedded in the build info, which is in turn used for the action id. But for a test # of a non-main package, there would be no build info set and the default godebug would not # be taken into account in the action id. So if the only difference between a test run was the # default GODEBUG setting, the cached test result would be used (even though the # binaries were different because they contained different default GODEBUG values). # Now we explicitly add the default GODEBUG to the action id, so the test binaries' link actions # have different actionIDs. That means that the cached test results (whose action ids # are based on the test binaries' action ids) should only be used when the default GODEBUG matches. [short] skip 'runs go test' # Baseline: ensure TestReadResponseErrors fails with GODEBUG httplaxcontentlength=1. env GO111MODULE=off ! go test net/http -run=^TestReadResponseErrors$ # Ensure that it passes without httplaxcontentlength=1. env GO111MODULE=on go test net/http -run=^TestReadResponseErrors$ # Make sure that the previous cached pass isn't reused when setting httplaxcontentlength=1. env GO111MODULE=off ! go test net/http -run=^TestReadResponseErrors$