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metrics: Fix divide by zero error

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Under certain conditions, `howSimilarString` could reach a divide-by-
zero situation which causes bogus values to print in the cache potential
column of the template hints output.  This situation essentially causes
a `int(math.NaN())` value to be returned and hilarity ensues thereafter.
This commit is contained in:
Cameron Moore
2022-05-25 21:14:37 -05:00
committed by Bjørn Erik Pedersen
parent 805b21555e
commit 6a5acd753a
2 changed files with 5 additions and 0 deletions
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metrics/metrics_test.go
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@@ -43,6 +43,7 @@ func TestSimilarPercentage(t *testing.T) {
c.Assert(howSimilar(template.HTML("Hugo Rules"), template.HTML("Hugo Rules")), qt.Equals, 100)
c.Assert(howSimilar(map[string]any{"a": 32, "b": 33}, map[string]any{"a": 32, "b": 33}), qt.Equals, 100)
c.Assert(howSimilar(map[string]any{"a": 32, "b": 33}, map[string]any{"a": 32, "b": 34}), qt.Equals, 0)
c.Assert(howSimilar("\n", ""), qt.Equals, 100)
}
type testStruct struct {