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env: fix errors on valid interpolation expressions #307
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Original file line number | Diff line number | Diff line change |
---|---|---|
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@@ -47,10 +47,24 @@ func TestSubstituteNoMatch(t *testing.T) { | |
assert.Equal(t, "foo", result) | ||
} | ||
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func TestUnescaped(t *testing.T) { | ||
templates := []string{ | ||
"a $ string", | ||
"^REGEX$", | ||
"$}", | ||
"$", | ||
} | ||
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for _, expected := range templates { | ||
actual, err := Substitute(expected, defaultMapping) | ||
assert.NilError(t, err) | ||
assert.Equal(t, expected, actual) | ||
} | ||
} | ||
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func TestInvalid(t *testing.T) { | ||
invalidTemplates := []string{ | ||
"${", | ||
"$}", | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. This is valid and is in the new test cases above. ❯ echo "$}"
$} |
||
"${}", | ||
"${ }", | ||
"${ foo}", | ||
|
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Here's a playground with the expanded regex and various cases: https://regex101.com/r/H5aQT8/1
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The change here is to move the "invalid" named group (doesn't actually capture anything, used as a sentinel) to be part of the "braced" section so we can detect an unmatched brace, so there's an extra (non-capturing) group.