---
test case: cpu{type="intel"} == 1
in: 
  filter: cpu{type="intel"} == 1
out:
  return: SUCCEED
  metric:
    pattern: cpu
    op: =
  value:
    pattern: 1
    op: ==
  labels:
    - key: type
      pattern: intel
      op: =
---
test case: '{__name__="cpu", type="intel"}'
in: 
  filter: '{__name__="cpu", type="intel"}'
out:
  return: SUCCEED
  metric:
    pattern: cpu
    op: =
  labels:
    - key: type
      pattern: intel
      op: =
---
test case: '{__name__="cpu", type="intel", cores="4"}'
in: 
  filter: '{__name__="cpu", type="intel", cores=~"4"}'
out:
  return: SUCCEED
  metric:
    pattern: cpu
    op: =
  labels:
    - key: type
      pattern: intel
      op: =
    - key: cores
      pattern: 4
      op: =~
---
test case: cpu == 1
in: 
  filter: cpu == 1
out:
  return: SUCCEED
  metric:
    pattern: cpu
    op: =
  value:
    pattern: 1
    op: ==
---
test case: 'cpu{decription="CPU \"Intel\""}'
in: 
  filter: 'cpu{decription=~"CPU \"Intel\""}'
out:
  return: SUCCEED
  metric:
    pattern: cpu
    op: =
  labels:
    - key: decription
      pattern: CPU "Intel"
      op: =~
---
test case: 'cpu{__name__="cpu"}'
in: 
  filter: 'cpu{__name__="cpu"}'
out:
  return: FAIL
---
test case: '{__name__="cpu", __name__="cpu"}'
in: 
  filter: '{__name__="cpu", __name__="cpu"}'
out:
  return: FAIL
---
test case: cpu = 1
in: 
  filter: cpu = 1
out:
  return: FAIL
---
test case: cpu =~ 1
in: 
  filter: cpu =~ 1
out:
  return: FAIL
---
test case: cpu{type=="intel"} == 1
in: 
  filter: cpu{type=="intel"} == 1
out:
  return: FAIL
---
test case: Empty
in: 
  filter: ""
out:
  return: SUCCEED
---
test case: sensor == Nan
in: 
  filter: sensor == Nan
out:
  return: SUCCEED
  metric:
    pattern: sensor
    op: =
  value:
    pattern: Nan
    op: ==
---
test case: sensor == +Nan
in: 
  filter: sensor == +Nan
out:
  return: FAIL
---
test case: sensor == +Inf
in: 
  filter: sensor == +Inf
out:
  return: SUCCEED
  metric:
    pattern: sensor
    op: =
  value:
    pattern: +Inf
    op: ==
---
test case: sensor == -.1
in: 
  filter: sensor == -.1
out:
  return: SUCCEED
  metric:
    pattern: sensor
    op: =
  value:
    pattern: -.1
    op: ==
---
test case: sensor == -.1e2
in: 
  filter: sensor == -.1e2
out:
  return: SUCCEED
  metric:
    pattern: sensor
    op: =
  value:
    pattern: -.1e2
    op: ==
---
test case: sensor == +1.
in: 
  filter: sensor == +1.
out:
  return: SUCCEED
  metric:
    pattern: sensor
    op: =
  value:
    pattern: +1.
    op: ==
---
test case: sensor == +1.e2
in: 
  filter: sensor == +1.e2
out:
  return: SUCCEED
  metric:
    pattern: sensor
    op: =
  value:
    pattern: +1.e2
    op: ==
---
test case: sensor == +1.0000
in: 
  filter: sensor == +1.0000
out:
  return: SUCCEED
  metric:
    pattern: sensor
    op: =
  value:
    pattern: +1.0000
    op: ==
---
test case: sensor == +1.0000e-2
in: 
  filter: sensor == +1.0000e-2
out:
  return: SUCCEED
  metric:
    pattern: sensor
    op: =
  value:
    pattern: +1.0000e-2
    op: ==
---
test case: sensor == .
in: 
  filter: sensor == .
out:
  return: FAIL
---
test case: sensor == 1e
in: 
  filter: sensor == 1e
out:
  return: FAIL
---
test case: sensor == 1e1 1
in: 
  filter: sensor == 1e1 1
out:
  return: FAIL
...