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fix(coderd/chatd): exclude |& from background detection, add tests (#23313)
The ampersand detection treated bash's pipe-stderr operator (|&) as a trailing & for backgrounding, stripping it and producing a broken pipe command. Also adds tests for execute.go and chatloop context limit helpers, covering previously untested edge cases.
This commit is contained in:
Mathias Fredriksson
@@ -0,0 +1,399 @@
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package chatloop
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import (
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"encoding/json"
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"testing"
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"charm.land/fantasy"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// testProviderData implements fantasy.ProviderOptionsData so we can
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// construct arbitrary ProviderMetadata for extractContextLimit tests.
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type testProviderData struct {
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data map[string]any
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}
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func (*testProviderData) Options() {}
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func (d *testProviderData) MarshalJSON() ([]byte, error) {
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return json.Marshal(d.data)
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}
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// Required by the ProviderOptionsData interface; unused in tests.
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func (d *testProviderData) UnmarshalJSON(b []byte) error {
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return json.Unmarshal(b, &d.data)
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}
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func TestNormalizeMetadataKey(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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key string
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want string
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}{
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{name: "lowercase", key: "camelCase", want: "camelcase"},
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{name: "hyphens stripped", key: "kebab-case", want: "kebabcase"},
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{name: "underscores stripped", key: "snake_case", want: "snakecase"},
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{name: "uppercase", key: "UPPER", want: "upper"},
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{name: "spaces stripped", key: "with spaces", want: "withspaces"},
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{name: "empty", key: "", want: ""},
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{name: "digits preserved", key: "123", want: "123"},
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{name: "mixed separators", key: "Max_Context-Tokens", want: "maxcontexttokens"},
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{name: "dots stripped", key: "context.limit", want: "contextlimit"},
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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 := normalizeMetadataKey(tt.key)
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require.Equal(t, tt.want, got)
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})
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}
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}
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func TestIsContextLimitKey(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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key string
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want bool
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skip bool
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}{ // Exact matches after normalization.
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{name: "context_limit", key: "context_limit", want: true},
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{name: "context_window", key: "context_window", want: true},
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{name: "context_length", key: "context_length", want: true},
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{name: "max_context", key: "max_context", want: true},
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{name: "max_context_tokens", key: "max_context_tokens", want: true},
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{name: "max_input_tokens", key: "max_input_tokens", want: true},
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{name: "max_input_token", key: "max_input_token", want: true},
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{name: "input_token_limit", key: "input_token_limit", want: true},
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// Case and separator variations.
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{name: "Context-Window mixed case", key: "Context-Window", want: true},
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{name: "MAX_CONTEXT_TOKENS screaming", key: "MAX_CONTEXT_TOKENS", want: true},
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{name: "contextLimit camelCase", key: "contextLimit", want: true},
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// Fallback heuristic: contains "context" + limit/window/length.
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{name: "model_context_limit", key: "model_context_limit", want: true},
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{name: "context_window_size", key: "context_window_size", want: true},
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{name: "context_length_max", key: "context_length_max", want: true},
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// Fallback heuristic: starts with "max" + contains "context".
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// BUG(isContextLimitKey): "max_context_version" matches
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// because it contains "context" and starts with "max",
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// but a version field is not a context limit.
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// TODO: Fix the heuristic and remove this skip.
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{name: "max_context_version false positive", key: "max_context_version", want: false, skip: true}, // Non-matching keys.
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{name: "context_id no limit keyword", key: "context_id", want: false},
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{name: "empty string", key: "", want: false},
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{name: "unrelated key", key: "model_name", want: false},
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{name: "limit without context", key: "rate_limit", want: false},
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{name: "max without context", key: "max_tokens", want: false},
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{name: "context alone", key: "context", want: false},
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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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if tt.skip {
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t.Skip("known bug: isContextLimitKey false positive")
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}
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got := isContextLimitKey(tt.key)
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require.Equal(t, tt.want, got)
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})
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}
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}
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func TestNumericContextLimitValue(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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value any
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want int64
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wantOK bool
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}{
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// float64: the default numeric type from json.Unmarshal.
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{name: "float64 integer", value: float64(128000), want: 128000, wantOK: true},
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{name: "float64 fractional rejected", value: float64(128000.5), want: 0, wantOK: false},
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{name: "float64 zero rejected", value: float64(0), want: 0, wantOK: false},
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{name: "float64 negative rejected", value: float64(-1), want: 0, wantOK: false},
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// int64
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{name: "int64 positive", value: int64(200000), want: 200000, wantOK: true},
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{name: "int64 zero rejected", value: int64(0), want: 0, wantOK: false},
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{name: "int64 negative rejected", value: int64(-1), want: 0, wantOK: false},
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// int32
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{name: "int32 positive", value: int32(50000), want: 50000, wantOK: true},
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{name: "int32 zero rejected", value: int32(0), want: 0, wantOK: false},
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// int
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{name: "int positive", value: int(50000), want: 50000, wantOK: true},
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{name: "int zero rejected", value: int(0), want: 0, wantOK: false},
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// string
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{name: "string numeric", value: "128000", want: 128000, wantOK: true},
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{name: "string trimmed", value: " 128000 ", want: 128000, wantOK: true},
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{name: "string non-numeric rejected", value: "not a number", want: 0, wantOK: false},
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{name: "string empty rejected", value: "", want: 0, wantOK: false},
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{name: "string zero rejected", value: "0", want: 0, wantOK: false},
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{name: "string negative rejected", value: "-1", want: 0, wantOK: false},
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// json.Number
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{name: "json.Number valid", value: json.Number("200000"), want: 200000, wantOK: true},
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{name: "json.Number invalid rejected", value: json.Number("invalid"), want: 0, wantOK: false},
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{name: "json.Number zero rejected", value: json.Number("0"), want: 0, wantOK: false},
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// Unhandled types.
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{name: "bool rejected", value: true, want: 0, wantOK: false},
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{name: "nil rejected", value: nil, want: 0, wantOK: false},
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{name: "slice rejected", value: []int{1}, want: 0, wantOK: false},
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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, ok := numericContextLimitValue(tt.value)
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require.Equal(t, tt.wantOK, ok)
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require.Equal(t, tt.want, got)
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})
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}
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}
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func TestPositiveInt64(t *testing.T) {
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t.Parallel()
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got, ok := positiveInt64(42)
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require.True(t, ok)
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require.Equal(t, int64(42), got)
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got, ok = positiveInt64(0)
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require.False(t, ok)
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require.Equal(t, int64(0), got)
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got, ok = positiveInt64(-1)
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require.False(t, ok)
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require.Equal(t, int64(0), got)
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}
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func TestCollectContextLimitValues(t *testing.T) {
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t.Parallel()
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t.Run("FlatMap", func(t *testing.T) {
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t.Parallel()
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input := map[string]any{
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"context_limit": float64(200000),
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"other_key": float64(999),
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}
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var collected []int64
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collectContextLimitValues(input, func(v int64) {
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collected = append(collected, v)
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})
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require.Equal(t, []int64{200000}, collected)
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})
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t.Run("NestedMaps", func(t *testing.T) {
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t.Parallel()
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input := map[string]any{
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"provider": map[string]any{
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"info": map[string]any{
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"context_window": float64(100000),
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},
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},
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}
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var collected []int64
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collectContextLimitValues(input, func(v int64) {
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collected = append(collected, v)
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})
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require.Equal(t, []int64{100000}, collected)
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})
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t.Run("ArrayTraversal", func(t *testing.T) {
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t.Parallel()
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input := []any{
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map[string]any{"context_limit": float64(50000)},
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map[string]any{"context_limit": float64(80000)},
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}
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var collected []int64
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collectContextLimitValues(input, func(v int64) {
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collected = append(collected, v)
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})
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require.Len(t, collected, 2)
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require.Contains(t, collected, int64(50000))
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require.Contains(t, collected, int64(80000))
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})
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t.Run("MixedNesting", func(t *testing.T) {
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t.Parallel()
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input := map[string]any{
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"models": []any{
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map[string]any{
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"context_limit": float64(128000),
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},
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},
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}
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var collected []int64
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collectContextLimitValues(input, func(v int64) {
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collected = append(collected, v)
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})
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require.Equal(t, []int64{128000}, collected)
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})
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t.Run("NonMatchingKey", func(t *testing.T) {
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t.Parallel()
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input := map[string]any{
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"model_name": "gpt-4",
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"tokens": float64(1000),
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}
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var collected []int64
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collectContextLimitValues(input, func(v int64) {
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collected = append(collected, v)
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})
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require.Empty(t, collected)
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})
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t.Run("ScalarIgnored", func(t *testing.T) {
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t.Parallel()
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var collected []int64
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collectContextLimitValues("just a string", func(v int64) {
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collected = append(collected, v)
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})
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require.Empty(t, collected)
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})
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}
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func TestFindContextLimitValue(t *testing.T) {
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t.Parallel()
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t.Run("SingleCandidate", func(t *testing.T) {
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t.Parallel()
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input := map[string]any{
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"context_limit": float64(200000),
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}
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limit, ok := findContextLimitValue(input)
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require.True(t, ok)
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require.Equal(t, int64(200000), limit)
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})
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t.Run("MultipleCandidatesTakesMax", func(t *testing.T) {
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t.Parallel()
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input := map[string]any{
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"a": map[string]any{"context_limit": float64(50000)},
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"b": map[string]any{"context_limit": float64(200000)},
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}
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limit, ok := findContextLimitValue(input)
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require.True(t, ok)
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require.Equal(t, int64(200000), limit)
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})
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t.Run("NoCandidates", func(t *testing.T) {
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t.Parallel()
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input := map[string]any{
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"model": "gpt-4",
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}
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_, ok := findContextLimitValue(input)
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require.False(t, ok)
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})
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t.Run("NilInput", func(t *testing.T) {
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t.Parallel()
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_, ok := findContextLimitValue(nil)
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require.False(t, ok)
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})
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}
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func TestExtractContextLimit(t *testing.T) {
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t.Parallel()
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t.Run("AnthropicStyle", func(t *testing.T) {
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t.Parallel()
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metadata := fantasy.ProviderMetadata{
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"anthropic": &testProviderData{
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data: map[string]any{
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"cache_read_input_tokens": float64(100),
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"context_limit": float64(200000),
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},
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},
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}
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result := extractContextLimit(metadata)
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require.True(t, result.Valid)
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require.Equal(t, int64(200000), result.Int64)
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})
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t.Run("OpenAIStyle", func(t *testing.T) {
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t.Parallel()
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metadata := fantasy.ProviderMetadata{
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"openai": &testProviderData{
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data: map[string]any{
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"max_context_tokens": float64(128000),
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},
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},
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}
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result := extractContextLimit(metadata)
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require.True(t, result.Valid)
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require.Equal(t, int64(128000), result.Int64)
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})
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t.Run("NestedDeeply", func(t *testing.T) {
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t.Parallel()
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metadata := fantasy.ProviderMetadata{
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"provider": &testProviderData{
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data: map[string]any{
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"info": map[string]any{
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"context_window": float64(100000),
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},
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},
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},
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}
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result := extractContextLimit(metadata)
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require.True(t, result.Valid)
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require.Equal(t, int64(100000), result.Int64)
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})
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t.Run("MultipleCandidatesTakesMax", func(t *testing.T) {
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t.Parallel()
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metadata := fantasy.ProviderMetadata{
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"a": &testProviderData{
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data: map[string]any{
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"context_limit": float64(50000),
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},
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},
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"b": &testProviderData{
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data: map[string]any{
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"context_limit": float64(200000),
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},
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},
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}
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result := extractContextLimit(metadata)
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require.True(t, result.Valid)
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require.Equal(t, int64(200000), result.Int64)
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})
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t.Run("NoMatchingKeys", func(t *testing.T) {
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t.Parallel()
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metadata := fantasy.ProviderMetadata{
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"openai": &testProviderData{
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data: map[string]any{
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"model": "gpt-4",
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"tokens": float64(1000),
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},
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},
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}
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result := extractContextLimit(metadata)
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assert.False(t, result.Valid)
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})
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t.Run("NilMetadata", func(t *testing.T) {
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t.Parallel()
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result := extractContextLimit(nil)
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assert.False(t, result.Valid)
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})
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t.Run("EmptyMetadata", func(t *testing.T) {
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t.Parallel()
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result := extractContextLimit(fantasy.ProviderMetadata{})
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assert.False(t, result.Valid)
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})
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}
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