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go.tools/cmd/cover: doesn't work with cgo #6333

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mattn opened this issue Sep 5, 2013 · 9 comments
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go.tools/cmd/cover: doesn't work with cgo #6333

mattn opened this issue Sep 5, 2013 · 9 comments
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Go1.3

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@mattn
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mattn commented Sep 5, 2013 

1. clone github.com/mattn/go-sqlite3
2. go test -coverprofile=foo.out
3. go tool cover -html=foo.out

What is the expected output?

  Show coverage results

What do you see instead?

  No information about coverage

Which compiler are you using (5g, 6g, 8g, gccgo)?

  8g

Which operating system are you using?

  Windows7

Which version are you using?  (run 'go version')

  go version devel +2f13cc5d7043 Tue Aug 27 14:53:57 2013 +1000 windows/386
@adg
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adg commented Sep 5, 2013

Comment 1:

Do you mean coverage of the C code or Go packages that use cgo?

Labels changed: added go1.2maybe.

Owner changed to @robpike.

Status changed to Accepted.

@mattn
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mattn commented Sep 6, 2013

Comment 2:

I don't mean coverage of C code. If the Go code contains cgo, cover output 0% result.

@rsc
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rsc commented Oct 2, 2013

Comment 3:

Labels changed: added go1.3, removed go1.2maybe.

@rsc
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rsc commented Dec 4, 2013

Comment 5:

Labels changed: added release-go1.3.

@rsc
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rsc commented Dec 4, 2013

Comment 6:

Labels changed: removed go1.3.

@rsc
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rsc commented Dec 4, 2013

Comment 7:

Labels changed: added repo-tools.

@gopherbot
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Comment 8 by wkschwartz:

I also am having this problem.
To reproduce:
1. git clone github.com/wkschwartz/pigosat
2. go test -cover
What is the expected output?
  I counted my test coverage by hand. I think my tests are close to covering about 95% of statements.
What do you see instead?
  PASS
  coverage: 0.0% of statements
  ok    pigosat 0.021s
Which compiler are you using (5g, 6g, 8g, gccgo)?
  6g
Which operating system are you using?
  Darwin
Which version are you using?  (run 'go version')
  go version go1.2 darwin/amd64

@gopherbot
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Comment 9 by wkschwartz:

I should note that for github.com/wkschwartz/pigosat, you should be on or before commit
0147b11afbfc50ea72a408a1f0bcca65b6756ee0

@rsc
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rsc commented Mar 6, 2014

Comment 10:

This issue was closed by revision 9abcd53.

Status changed to Fixed.

This was referenced Dec 30, 2014
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Closed
@rsc rsc added this to the Go1.3 milestone Apr 14, 2015
@rsc rsc removed the release-go1.3 label Apr 14, 2015
@zhulik zhulik mentioned this issue Dec 15, 2015
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@golang golang locked and limited conversation to collaborators Jun 25, 2016
@rsc rsc unassigned robpike Jun 22, 2022
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@mattn @rsc @robpike @adg @gopherbot