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680 lines (676 loc) · 15.1 KB
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package dotenv_test
import (
"context"
"strings"
"testing"
"github.com/compose-spec/dotenv"
"gotest.tools/v3/assert"
)
func TestParse(t *testing.T) {
type test struct {
name string
input string
expect map[string]string
err string
}
tests := []test{
{
name: "unquoted",
input: "FOO=BAR",
expect: map[string]string{
"FOO": "BAR",
},
},
{
name: "variable name with underscore",
input: "FOO_BAR=value",
expect: map[string]string{
"FOO_BAR": "value",
},
},
{
name: "variable name with dot",
input: "foo.bar=value",
expect: map[string]string{
"foo.bar": "value",
},
},
{
name: "variable name with hyphen",
input: "foo-bar=value",
expect: map[string]string{
"foo-bar": "value",
},
},
{
name: "variable name with numbers",
input: "VAR123=value",
expect: map[string]string{
"VAR123": "value",
},
},
{
name: "variable name with mixed characters",
input: "foo.bar-baz_123=value",
expect: map[string]string{
"foo.bar-baz_123": "value",
},
},
{
name: "export prefix",
input: "export FOO=BAR",
expect: map[string]string{
"FOO": "BAR",
},
},
{
name: "export without assignment",
input: "FOO=BAR\nexport FOO",
expect: map[string]string{
"FOO": "BAR",
},
},
{
name: "export without assignment is ignored",
input: "BASE=/usr\nexport BASE\nPATH=$BASE/bin",
expect: map[string]string{
"BASE": "/usr",
"PATH": "/usr/bin",
},
},
{
name: "with comments",
input: "# comment before\nFOO=BAR\n# comment after",
expect: map[string]string{
"FOO": "BAR",
},
},
{
name: "inline comment with unquoted value",
input: "FOO=bar # this is a comment",
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "inline comment with double quoted value",
input: "FOO=\"bar # not a comment\"",
expect: map[string]string{
"FOO": "bar # not a comment",
},
},
{
name: "inline comment with single quoted value",
input: "FOO='bar # not a comment'",
expect: map[string]string{
"FOO": "bar # not a comment",
},
},
{
name: "multiple inline comments",
input: "FOO=bar # comment\nBAZ=qux # another comment",
expect: map[string]string{
"FOO": "bar",
"BAZ": "qux",
},
},
{
name: "space before equal",
input: "FOO =bar",
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "space after equal",
input: "FOO= bar",
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "yaml style",
input: "FOO:bar",
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "colon with spaces",
input: "FOO : bar",
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "leading spaces",
input: " FOO=bar",
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "trailing spaces",
input: "FOO=bar ",
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "leading and trailing spaces",
input: " FOO=bar ",
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "double quoted value",
input: `FOO="bar"`,
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "single quoted value",
input: `FOO='bar'`,
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "double quoted with spaces",
input: `FOO="hello world"`,
expect: map[string]string{
"FOO": "hello world",
},
},
{
name: "double quoted multi-line value",
input: "FOO=\"line1\nline2\nline3\"",
expect: map[string]string{
"FOO": "line1\nline2\nline3",
},
},
{
name: "single quoted multi-line value",
input: "FOO='line1\nline2\nline3'",
expect: map[string]string{
"FOO": "line1\nline2\nline3",
},
},
{
name: "multi-line value with multiple variables",
input: "FOO=\"multi\nline\"\nBAR=single",
expect: map[string]string{
"FOO": "multi\nline",
"BAR": "single",
},
},
{
name: "multi-line value preserves indentation",
input: "FOO=\"line1\n indented\n more indented\"",
expect: map[string]string{
"FOO": "line1\n indented\n more indented",
},
},
{
name: "single quoted with spaces",
input: `FOO='hello world'`,
expect: map[string]string{
"FOO": "hello world",
},
},
{
name: "double quoted with trailing spaces",
input: `FOO="bar" `,
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "single quoted with trailing spaces",
input: `FOO='bar' `,
expect: map[string]string{
"FOO": "bar",
},
},
{
name: "double quoted with escaped quote",
input: `FOO="bar \"baz\""`,
expect: map[string]string{
"FOO": `bar "baz"`,
},
},
{
name: "double quoted with escaped backslash",
input: `FOO="bar\\baz"`,
expect: map[string]string{
"FOO": `bar\baz`,
},
},
{
name: "double quoted with newline",
input: `FOO="bar\nbaz"`,
expect: map[string]string{
"FOO": "bar\nbaz",
},
},
{
name: "double quoted with tab",
input: `FOO="bar\tbaz"`,
expect: map[string]string{
"FOO": "bar\tbaz",
},
},
{
name: "variable expansion with $VAR",
input: "BASE=/usr\nPATH=$BASE/bin",
expect: map[string]string{
"BASE": "/usr",
"PATH": "/usr/bin",
},
},
{
name: "variable expansion with ${VAR}",
input: "BASE=/usr\nPATH=${BASE}/bin",
expect: map[string]string{
"BASE": "/usr",
"PATH": "/usr/bin",
},
},
{
name: "variable expansion undefined variable",
input: "PATH=$UNDEFINED/bin",
expect: map[string]string{
"PATH": "/bin",
},
},
{
name: "variable expansion undefined variable with braces",
input: "PATH=${UNDEFINED}/bin",
expect: map[string]string{
"PATH": "/bin",
},
},
{
name: "variable expansion multiple references",
input: "A=foo\nB=bar\nC=$A-$B",
expect: map[string]string{
"A": "foo",
"B": "bar",
"C": "foo-bar",
},
},
{
name: "variable expansion in double quoted value",
input: "BASE=/usr\nPATH=\"$BASE/bin\"",
expect: map[string]string{
"BASE": "/usr",
"PATH": "/usr/bin",
},
},
{
name: "no variable expansion in single quoted value",
input: "BASE=/usr\nPATH='$BASE/bin'",
expect: map[string]string{
"BASE": "/usr",
"PATH": "$BASE/bin",
},
},
{
name: "no variable expansion in single quoted value with braces",
input: "BASE=/usr\nPATH='${BASE}/bin'",
expect: map[string]string{
"BASE": "/usr",
"PATH": "${BASE}/bin",
},
},
{
name: "variable expansion in unquoted value",
input: "BASE=/usr\nPATH=$BASE/bin",
expect: map[string]string{
"BASE": "/usr",
"PATH": "/usr/bin",
},
},
{
name: "escaped dollar sign with $VAR syntax",
input: "BASE=/usr\nPATH=\\$BASE/bin",
expect: map[string]string{
"BASE": "/usr",
"PATH": "$BASE/bin",
},
},
{
name: "escaped dollar sign with ${VAR} syntax",
input: "BASE=/usr\nPATH=\\${BASE}/bin",
expect: map[string]string{
"BASE": "/usr",
"PATH": "${BASE}/bin",
},
},
{
name: "escaped dollar sign in double quoted value",
input: "BASE=/usr\nPATH=\"\\$BASE/bin\"",
expect: map[string]string{
"BASE": "/usr",
"PATH": "$BASE/bin",
},
},
{
name: "blank value",
input: "EMPTY=",
expect: map[string]string{
"EMPTY": "",
},
},
{
name: "blank value with spaces",
input: "EMPTY= ",
expect: map[string]string{
"EMPTY": "",
},
},
{
name: "default value with dash unset variable",
input: "FOO=${UNSET-default}",
expect: map[string]string{
"FOO": "default",
},
},
{
name: "default value with dash set variable",
input: "BAR=value\nFOO=${BAR-default}",
expect: map[string]string{
"BAR": "value",
"FOO": "value",
},
},
{
name: "default value with dash empty variable",
input: "BAR=\nFOO=${BAR-default}",
expect: map[string]string{
"BAR": "",
"FOO": "",
},
},
{
name: "default value with colon dash unset variable",
input: "FOO=${UNSET:-default}",
expect: map[string]string{
"FOO": "default",
},
},
{
name: "default value with colon dash empty variable",
input: "BAR=\nFOO=${BAR:-default}",
expect: map[string]string{
"BAR": "",
"FOO": "default",
},
},
{
name: "default value with colon dash set variable",
input: "BAR=value\nFOO=${BAR:-default}",
expect: map[string]string{
"BAR": "value",
"FOO": "value",
},
},
{
name: "replacement value with plus unset variable",
input: "FOO=${UNSET+replacement}",
expect: map[string]string{
"FOO": "",
},
},
{
name: "replacement value with plus set variable",
input: "BAR=value\nFOO=${BAR+replacement}",
expect: map[string]string{
"BAR": "value",
"FOO": "replacement",
},
},
{
name: "replacement value with plus empty variable",
input: "BAR=\nFOO=${BAR+replacement}",
expect: map[string]string{
"BAR": "",
"FOO": "replacement",
},
},
{
name: "replacement value with colon plus unset variable",
input: "FOO=${UNSET:+replacement}",
expect: map[string]string{
"FOO": "",
},
},
{
name: "replacement value with colon plus empty variable",
input: "BAR=\nFOO=${BAR:+replacement}",
expect: map[string]string{
"BAR": "",
"FOO": "",
},
},
{
name: "replacement value with colon plus set variable",
input: "BAR=value\nFOO=${BAR:+replacement}",
expect: map[string]string{
"BAR": "value",
"FOO": "replacement",
},
},
{
name: "required variable with question mark set variable",
input: "BAR=value\nFOO=${BAR?BAR is required}",
expect: map[string]string{
"BAR": "value",
"FOO": "value",
},
},
{
name: "required variable with question mark empty variable",
input: "BAR=\nFOO=${BAR?BAR is required}",
expect: map[string]string{
"BAR": "",
"FOO": "",
},
},
{
name: "required variable with colon question mark set variable",
input: "BAR=value\nFOO=${BAR:?BAR is required}",
expect: map[string]string{
"BAR": "value",
"FOO": "value",
},
},
{
name: "required variable with question mark unset variable",
input: "FOO=${UNSET?UNSET is required}",
err: "UNSET is required",
},
{
name: "required variable with question mark unset variable no message",
input: "FOO=${UNSET?}",
err: "UNSET: required variable is not set",
},
{
name: "required variable with colon question mark unset variable",
input: "FOO=${UNSET:?UNSET is required}",
err: "UNSET is required",
},
{
name: "required variable with colon question mark empty variable",
input: "BAR=\nFOO=${BAR:?BAR is required}",
err: "BAR is required",
},
{
name: "required variable with colon question mark unset variable no message",
input: "FOO=${UNSET:?}",
err: "UNSET: required variable is not set",
},
{
name: "nested expansion in default value with dash",
input: "BAR=hello\nFOO=${UNSET-$BAR}",
expect: map[string]string{
"BAR": "hello",
"FOO": "hello",
},
},
{
name: "nested expansion in default value with colon dash",
input: "BAR=world\nFOO=${UNSET:-$BAR}",
expect: map[string]string{
"BAR": "world",
"FOO": "world",
},
},
{
name: "nested expansion with braces in default value",
input: "BAR=test\nFOO=${UNSET:-${BAR}}",
expect: map[string]string{
"BAR": "test",
"FOO": "test",
},
},
{
name: "nested expansion in replacement value with plus",
input: "BAR=replaced\nBIZ=set\nFOO=${BIZ+$BAR}",
expect: map[string]string{
"BAR": "replaced",
"BIZ": "set",
"FOO": "replaced",
},
},
{
name: "nested expansion in replacement value with colon plus",
input: "BAR=value\nBIZ=set\nFOO=${BIZ:+$BAR}",
expect: map[string]string{
"BAR": "value",
"BIZ": "set",
"FOO": "value",
},
},
{
name: "nested expansion with undefined variable in default",
input: "FOO=${UNSET:-$UNDEFINED}",
expect: map[string]string{
"FOO": "",
},
},
{
name: "nested expansion with multiple variables in default",
input: "A=hello\nB=world\nFOO=${UNSET:-$A $B}",
expect: map[string]string{
"A": "hello",
"B": "world",
"FOO": "hello world",
},
},
{
name: "multiple levels of nested expansion",
input: "A=final\nB=${UNSET:-$A}\nC=${UNSET:-$B}",
expect: map[string]string{
"A": "final",
"B": "final",
"C": "final",
},
},
{
name: "nested expansion with literal text",
input: "BAR=value\nFOO=${UNSET:-prefix-$BAR-suffix}",
expect: map[string]string{
"BAR": "value",
"FOO": "prefix-value-suffix",
},
},
{
name: "default value not expanded when variable is set",
input: "VAR=value\nFOO=${VAR-${BAR?BAR is required}}",
expect: map[string]string{
"VAR": "value",
"FOO": "value",
},
},
{
name: "default value with error expanded when variable is unset",
input: "FOO=${VAR-${BAR?BAR is required}}",
err: "BAR is required",
},
{
name: "default value not expanded when variable is set with colon dash",
input: "VAR=value\nFOO=${VAR:-${BAR?BAR is required}}",
expect: map[string]string{
"VAR": "value",
"FOO": "value",
},
},
{
name: "default value with error expanded when variable is empty with colon dash",
input: "VAR=\nFOO=${VAR:-${BAR?BAR is required}}",
err: "BAR is required",
},
{
name: "line without separator",
input: "FOO=BAR\nINVALIDLINE",
err: "line 2: no separator found in line: INVALIDLINE",
},
{
name: "export undefined variable",
input: "FOO=BAR\nexport UNDEFINED",
err: "line 2 \"UNDEFINED\" has an unset variable",
},
{
name: "invalid variable name with space",
input: "FOO BAR=value",
err: "line 1: invalid variable name \"FOO BAR\"",
},
{
name: "invalid variable name with special character",
input: "FOO@BAR=value",
err: "line 1: invalid variable name \"FOO@BAR\"",
},
{
name: "invalid variable name with dollar sign",
input: "FOO$BAR=value",
err: "line 1: invalid variable name \"FOO$BAR\"",
},
{
name: "invalid variable name with bracket",
input: "FOO[BAR]=value",
err: "line 1: invalid variable name \"FOO[BAR]\"",
},
{
name: "invalid variable name starting with digit",
input: "123VAR=value",
err: "line 1: invalid variable name \"123VAR\"",
},
{
name: "invalid variable name starting with digit and underscore",
input: "1_VAR=value",
err: "line 1: invalid variable name \"1_VAR\"",
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
env, err := dotenv.Parse(context.TODO(), strings.NewReader(test.input))
if test.err == "" {
assert.NilError(t, err)
vars, err := env.Resolve(nil)
assert.NilError(t, err)
assert.DeepEqual(t, test.expect, vars)
} else if strings.Contains(test.err, "required") {
// Error expected from Resolve() for required variable checks
assert.NilError(t, err)
_, err = env.Resolve(nil)
assert.Error(t, err, test.err)
} else {
// Error expected from Parse()
assert.Error(t, err, test.err)
}
})
}
}
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