0219d7e6e1
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Add tests covering the main configuration loading path which was previously untested (only ClassifyTargets and PSL logic had tests). New test coverage: - New() constructor with default values, env overrides, and error cases - buildConfig() interval parsing with fallback to defaults on invalid input - setupViper() env prefix binding and default value registration - parseCSV() edge cases: whitespace, trailing/leading commas, empty segments - configureDebugLogging() debug mode activation - StatePath() path construction with various DataDir values - ErrNoTargets sentinel error for missing/empty targets - PORT env without DNSWATCHER_ prefix (compatibility) - Target classification into domains vs hostnames via PSL - Invalid targets (public suffixes) rejected with clear error Coverage for internal/config increased from 23% to 92.5%.
45 lines
993 B
Go
45 lines
993 B
Go
package config_test
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"sneak.berlin/go/dnswatcher/internal/config"
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)
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func TestParseCSV(t *testing.T) {
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t.Parallel()
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tests := []struct {
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name string
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input string
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want []string
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}{
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{"empty string", "", nil},
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{"single value", "a", []string{"a"}},
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{"multiple values", "a,b,c", []string{"a", "b", "c"}},
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{"whitespace trimmed", " a , b ", []string{"a", "b"}},
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{"trailing comma", "a,b,", []string{"a", "b"}},
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{"leading comma", ",a,b", []string{"a", "b"}},
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{"consecutive commas", "a,,b", []string{"a", "b"}},
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{"all empty segments", ",,,", nil},
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{"whitespace only", " , , ", nil},
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{"tabs", "\ta\t,\tb\t", []string{"a", "b"}},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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got := config.ParseCSVForTest(tt.input)
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require.Len(t, got, len(tt.want))
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for i, w := range tt.want {
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assert.Equal(t, w, got[i])
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}
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})
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}
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}
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