d76448d4a9
Cover options (GenerateConfig defaults, all With* options, ApplyGenerateOpts/ ApplyLoadOpts), backend registry (Register, Get, List, Default priority order metal > rocm > llama_cpp), LoadModel routing (explicit/auto backend, error paths), and Discover (model directory scanning, quantisation, edge cases). 69 tests, 100% statement coverage, race-clean. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
350 lines
8.6 KiB
Go
350 lines
8.6 KiB
Go
package inference
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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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)
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// --- GenerateConfig defaults ---
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func TestDefaultGenerateConfig_Good(t *testing.T) {
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cfg := DefaultGenerateConfig()
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assert.Equal(t, 256, cfg.MaxTokens, "default MaxTokens should be 256")
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assert.Equal(t, float32(0.0), cfg.Temperature, "default Temperature should be 0.0 (greedy)")
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assert.Equal(t, 0, cfg.TopK, "default TopK should be 0 (disabled)")
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assert.Equal(t, float32(0.0), cfg.TopP, "default TopP should be 0.0 (disabled)")
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assert.Nil(t, cfg.StopTokens, "default StopTokens should be nil")
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assert.Equal(t, float32(0.0), cfg.RepeatPenalty, "default RepeatPenalty should be 0.0 (disabled)")
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assert.False(t, cfg.ReturnLogits, "default ReturnLogits should be false")
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}
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// --- WithMaxTokens ---
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func TestWithMaxTokens_Good(t *testing.T) {
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tests := []struct {
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name string
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val int
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want int
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}{
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{"small", 32, 32},
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{"medium", 512, 512},
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{"large", 4096, 4096},
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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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cfg := ApplyGenerateOpts([]GenerateOption{WithMaxTokens(tt.val)})
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assert.Equal(t, tt.want, cfg.MaxTokens)
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})
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}
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}
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func TestWithMaxTokens_Bad(t *testing.T) {
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// Zero and negative values are accepted (no validation in options layer)
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cfg := ApplyGenerateOpts([]GenerateOption{WithMaxTokens(0)})
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assert.Equal(t, 0, cfg.MaxTokens)
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cfg = ApplyGenerateOpts([]GenerateOption{WithMaxTokens(-1)})
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assert.Equal(t, -1, cfg.MaxTokens)
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}
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// --- WithTemperature ---
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func TestWithTemperature_Good(t *testing.T) {
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tests := []struct {
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name string
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val float32
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want float32
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}{
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{"greedy", 0.0, 0.0},
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{"low", 0.3, 0.3},
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{"default_creative", 0.7, 0.7},
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{"high", 1.5, 1.5},
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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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cfg := ApplyGenerateOpts([]GenerateOption{WithTemperature(tt.val)})
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assert.InDelta(t, tt.want, cfg.Temperature, 0.0001)
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})
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}
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}
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// --- WithTopK ---
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func TestWithTopK_Good(t *testing.T) {
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tests := []struct {
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name string
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val int
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want int
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}{
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{"disabled", 0, 0},
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{"small", 10, 10},
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{"typical", 40, 40},
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{"large", 100, 100},
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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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cfg := ApplyGenerateOpts([]GenerateOption{WithTopK(tt.val)})
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assert.Equal(t, tt.want, cfg.TopK)
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})
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}
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}
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// --- WithTopP ---
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func TestWithTopP_Good(t *testing.T) {
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tests := []struct {
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name string
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val float32
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want float32
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}{
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{"disabled", 0.0, 0.0},
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{"tight", 0.5, 0.5},
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{"typical", 0.9, 0.9},
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{"full", 1.0, 1.0},
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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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cfg := ApplyGenerateOpts([]GenerateOption{WithTopP(tt.val)})
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assert.InDelta(t, tt.want, cfg.TopP, 0.0001)
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})
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}
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}
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// --- WithStopTokens ---
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func TestWithStopTokens_Good(t *testing.T) {
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t.Run("single", func(t *testing.T) {
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cfg := ApplyGenerateOpts([]GenerateOption{WithStopTokens(1)})
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assert.Equal(t, []int32{1}, cfg.StopTokens)
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})
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t.Run("multiple", func(t *testing.T) {
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cfg := ApplyGenerateOpts([]GenerateOption{WithStopTokens(1, 2, 3)})
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assert.Equal(t, []int32{1, 2, 3}, cfg.StopTokens)
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})
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}
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func TestWithStopTokens_Ugly(t *testing.T) {
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// Last call wins — stop tokens are replaced, not merged.
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cfg := ApplyGenerateOpts([]GenerateOption{
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WithStopTokens(1, 2),
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WithStopTokens(3, 4, 5),
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})
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assert.Equal(t, []int32{3, 4, 5}, cfg.StopTokens, "last WithStopTokens should win")
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}
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// --- WithRepeatPenalty ---
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func TestWithRepeatPenalty_Good(t *testing.T) {
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tests := []struct {
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name string
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val float32
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want float32
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}{
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{"disabled", 0.0, 0.0},
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{"no_penalty", 1.0, 1.0},
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{"typical", 1.1, 1.1},
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{"strong", 2.0, 2.0},
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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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cfg := ApplyGenerateOpts([]GenerateOption{WithRepeatPenalty(tt.val)})
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assert.InDelta(t, tt.want, cfg.RepeatPenalty, 0.0001)
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})
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}
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}
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// --- WithLogits ---
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func TestWithLogits_Good(t *testing.T) {
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cfg := ApplyGenerateOpts([]GenerateOption{WithLogits()})
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assert.True(t, cfg.ReturnLogits)
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}
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// --- ApplyGenerateOpts ---
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func TestApplyGenerateOpts_Good(t *testing.T) {
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t.Run("nil_opts_returns_defaults", func(t *testing.T) {
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cfg := ApplyGenerateOpts(nil)
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def := DefaultGenerateConfig()
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assert.Equal(t, def, cfg)
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})
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t.Run("empty_opts_returns_defaults", func(t *testing.T) {
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cfg := ApplyGenerateOpts([]GenerateOption{})
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def := DefaultGenerateConfig()
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assert.Equal(t, def, cfg)
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})
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t.Run("all_options_combined", func(t *testing.T) {
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cfg := ApplyGenerateOpts([]GenerateOption{
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WithMaxTokens(128),
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WithTemperature(0.7),
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WithTopK(40),
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WithTopP(0.9),
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WithStopTokens(1, 2),
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WithRepeatPenalty(1.1),
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WithLogits(),
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})
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assert.Equal(t, 128, cfg.MaxTokens)
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assert.InDelta(t, 0.7, cfg.Temperature, 0.0001)
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assert.Equal(t, 40, cfg.TopK)
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assert.InDelta(t, 0.9, cfg.TopP, 0.0001)
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assert.Equal(t, []int32{1, 2}, cfg.StopTokens)
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assert.InDelta(t, 1.1, cfg.RepeatPenalty, 0.0001)
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assert.True(t, cfg.ReturnLogits)
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})
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}
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func TestApplyGenerateOpts_Ugly(t *testing.T) {
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t.Run("last_option_wins", func(t *testing.T) {
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cfg := ApplyGenerateOpts([]GenerateOption{
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WithMaxTokens(100),
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WithMaxTokens(200),
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WithMaxTokens(300),
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})
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assert.Equal(t, 300, cfg.MaxTokens, "last WithMaxTokens should win")
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})
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t.Run("temperature_override", func(t *testing.T) {
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cfg := ApplyGenerateOpts([]GenerateOption{
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WithTemperature(0.5),
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WithTemperature(1.0),
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})
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assert.InDelta(t, 1.0, cfg.Temperature, 0.0001, "last WithTemperature should win")
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})
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}
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// --- LoadConfig defaults ---
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func TestApplyLoadOpts_Good_Defaults(t *testing.T) {
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cfg := ApplyLoadOpts(nil)
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assert.Equal(t, "", cfg.Backend, "default Backend should be empty (auto-detect)")
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assert.Equal(t, 0, cfg.ContextLen, "default ContextLen should be 0 (model default)")
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assert.Equal(t, -1, cfg.GPULayers, "default GPULayers should be -1 (all layers)")
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assert.Equal(t, 0, cfg.ParallelSlots, "default ParallelSlots should be 0 (server default)")
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}
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// --- WithBackend ---
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func TestWithBackend_Good(t *testing.T) {
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tests := []struct {
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name string
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backend string
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}{
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{"metal", "metal"},
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{"rocm", "rocm"},
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{"llama_cpp", "llama_cpp"},
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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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cfg := ApplyLoadOpts([]LoadOption{WithBackend(tt.backend)})
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assert.Equal(t, tt.backend, cfg.Backend)
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})
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}
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}
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func TestWithBackend_Bad(t *testing.T) {
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// Empty string is valid at the options layer (means auto-detect).
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cfg := ApplyLoadOpts([]LoadOption{WithBackend("")})
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assert.Equal(t, "", cfg.Backend)
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}
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// --- WithContextLen ---
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func TestWithContextLen_Good(t *testing.T) {
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tests := []struct {
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name string
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val int
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want int
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}{
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{"small", 2048, 2048},
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{"medium", 4096, 4096},
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{"large", 32768, 32768},
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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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cfg := ApplyLoadOpts([]LoadOption{WithContextLen(tt.val)})
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assert.Equal(t, tt.want, cfg.ContextLen)
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})
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}
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}
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// --- WithGPULayers ---
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func TestWithGPULayers_Good(t *testing.T) {
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tests := []struct {
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name string
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val int
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want int
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}{
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{"all", -1, -1},
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{"none", 0, 0},
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{"partial", 24, 24},
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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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cfg := ApplyLoadOpts([]LoadOption{WithGPULayers(tt.val)})
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assert.Equal(t, tt.want, cfg.GPULayers)
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})
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}
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}
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func TestWithGPULayers_Ugly(t *testing.T) {
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// Override the default -1 with 0
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cfg := ApplyLoadOpts([]LoadOption{WithGPULayers(0)})
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assert.Equal(t, 0, cfg.GPULayers, "WithGPULayers(0) should override default -1")
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}
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// --- WithParallelSlots ---
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func TestWithParallelSlots_Good(t *testing.T) {
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tests := []struct {
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name string
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val int
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want int
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}{
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{"default", 0, 0},
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{"one", 1, 1},
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{"four", 4, 4},
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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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cfg := ApplyLoadOpts([]LoadOption{WithParallelSlots(tt.val)})
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assert.Equal(t, tt.want, cfg.ParallelSlots)
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})
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}
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}
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// --- ApplyLoadOpts combined ---
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func TestApplyLoadOpts_Good_Combined(t *testing.T) {
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cfg := ApplyLoadOpts([]LoadOption{
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WithBackend("rocm"),
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WithContextLen(8192),
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WithGPULayers(32),
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WithParallelSlots(2),
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})
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assert.Equal(t, "rocm", cfg.Backend)
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assert.Equal(t, 8192, cfg.ContextLen)
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assert.Equal(t, 32, cfg.GPULayers)
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assert.Equal(t, 2, cfg.ParallelSlots)
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}
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func TestApplyLoadOpts_Ugly(t *testing.T) {
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t.Run("last_option_wins", func(t *testing.T) {
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cfg := ApplyLoadOpts([]LoadOption{
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WithBackend("metal"),
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WithBackend("rocm"),
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})
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assert.Equal(t, "rocm", cfg.Backend, "last WithBackend should win")
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})
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t.Run("empty_slice_returns_defaults", func(t *testing.T) {
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cfg := ApplyLoadOpts([]LoadOption{})
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require.Equal(t, -1, cfg.GPULayers, "empty opts should keep default GPULayers=-1")
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assert.Equal(t, "", cfg.Backend)
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})
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}
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