wehub-resource-sync
59 lines
2.1 KiB
Go
59 lines
2.1 KiB
Go
package tool
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import (
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"context"
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"encoding/json"
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"errors"
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"testing"
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"reasonix/internal/diff"
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)
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type fakeWriter struct {
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readOnly bool
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change diff.Change
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err error
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}
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func (f fakeWriter) Name() string { return "fake" }
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func (f fakeWriter) Description() string { return "fake" }
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func (f fakeWriter) Schema() json.RawMessage { return json.RawMessage(`{}`) }
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func (f fakeWriter) Execute(context.Context, json.RawMessage) (string, error) { return "", nil }
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func (f fakeWriter) ReadOnly() bool { return f.readOnly }
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func (f fakeWriter) Preview(json.RawMessage) (diff.Change, error) { return f.change, f.err }
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type plainWriter struct{}
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func (plainWriter) Name() string { return "plain" }
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func (plainWriter) Description() string { return "plain" }
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func (plainWriter) Schema() json.RawMessage { return json.RawMessage(`{}`) }
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func (plainWriter) Execute(context.Context, json.RawMessage) (string, error) { return "", nil }
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func (plainWriter) ReadOnly() bool { return false }
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func TestPreviewChange(t *testing.T) {
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good := diff.Change{Diff: "@@\n+a\n", Added: 1}
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cases := []struct {
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name string
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tool Tool
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want bool
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}{
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{"nil tool", nil, false},
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{"read-only skipped", fakeWriter{readOnly: true, change: good}, false},
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{"writer without previewer", plainWriter{}, false},
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{"preview error", fakeWriter{err: errors.New("boom")}, false},
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{"binary skipped", fakeWriter{change: diff.Change{Binary: true}}, false},
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{"textual change", fakeWriter{change: good}, true},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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ch, ok := PreviewChange(c.tool, json.RawMessage(`{}`))
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if ok != c.want {
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t.Fatalf("ok = %v, want %v", ok, c.want)
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}
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if ok && ch.Diff == "" {
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t.Fatal("expected a non-empty diff on success")
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}
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})
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}
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}
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