mirror of
https://github.com/vxcontrol/langchaingo.git
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Abirdcfly
affaa87bdd
Port the ConversationBufferWindowMemory class from langchain python in langchaingo Signed-off-by: Abirdcfly <fp544037857@gmail.com>
100 lines
3.2 KiB
Go
100 lines
3.2 KiB
Go
package memory
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import (
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"context"
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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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"github.com/tmc/langchaingo/schema"
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)
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func TestWindowBufferMemory(t *testing.T) {
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t.Parallel()
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m := NewConversationWindowBuffer(2)
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result1, err := m.LoadMemoryVariables(context.Background(), map[string]any{})
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require.NoError(t, err)
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expected1 := map[string]any{"history": ""}
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assert.Equal(t, expected1, result1)
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err = m.SaveContext(context.Background(), map[string]any{"foo": "bar1"}, map[string]any{"bar": "foo1"})
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require.NoError(t, err)
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result2, err := m.LoadMemoryVariables(context.Background(), map[string]any{})
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require.NoError(t, err)
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expected2 := map[string]any{"history": "Human: bar1\nAI: foo1"}
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assert.Equal(t, expected2, result2)
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err = m.SaveContext(context.Background(), map[string]any{"foo": "bar2"}, map[string]any{"bar": "foo2"})
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require.NoError(t, err)
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result3, err := m.LoadMemoryVariables(context.Background(), map[string]any{})
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require.NoError(t, err)
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expected3 := map[string]any{"history": "Human: bar1\nAI: foo1\nHuman: bar2\nAI: foo2"}
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assert.Equal(t, expected3, result3)
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err = m.SaveContext(context.Background(), map[string]any{"foo": "bar3"}, map[string]any{"bar": "foo3"})
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require.NoError(t, err)
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result4, err := m.LoadMemoryVariables(context.Background(), map[string]any{})
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require.NoError(t, err)
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expected4 := map[string]any{"history": "Human: bar2\nAI: foo2\nHuman: bar3\nAI: foo3"}
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assert.Equal(t, expected4, result4)
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}
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func TestWindowBufferMemoryReturnMessage(t *testing.T) {
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t.Parallel()
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m := NewConversationWindowBuffer(2, WithReturnMessages(true))
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err := m.SaveContext(context.Background(), map[string]any{"foo": "bar1"}, map[string]any{"bar": "foo1"})
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require.NoError(t, err)
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err = m.SaveContext(context.Background(), map[string]any{"foo": "bar2"}, map[string]any{"bar": "foo2"})
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require.NoError(t, err)
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err = m.SaveContext(context.Background(), map[string]any{"foo": "bar3"}, map[string]any{"bar": "foo3"})
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require.NoError(t, err)
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result, err := m.LoadMemoryVariables(context.Background(), map[string]any{})
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require.NoError(t, err)
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expectedChatHistory := NewChatMessageHistory(
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WithPreviousMessages([]schema.ChatMessage{
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schema.HumanChatMessage{Content: "bar2"},
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schema.AIChatMessage{Content: "foo2"},
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schema.HumanChatMessage{Content: "bar3"},
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schema.AIChatMessage{Content: "foo3"},
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}),
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)
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messages, err := expectedChatHistory.Messages(context.Background())
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require.NoError(t, err)
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expected := map[string]any{"history": messages}
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assert.Equal(t, expected, result)
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}
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func TestWindowBufferMemoryWithPreLoadedHistory(t *testing.T) {
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t.Parallel()
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m := NewConversationWindowBuffer(2, WithChatHistory(NewChatMessageHistory(
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WithPreviousMessages([]schema.ChatMessage{
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schema.HumanChatMessage{Content: "bar1"},
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schema.AIChatMessage{Content: "foo1"},
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schema.HumanChatMessage{Content: "bar2"},
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schema.AIChatMessage{Content: "foo2"},
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schema.HumanChatMessage{Content: "bar3"},
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schema.AIChatMessage{Content: "foo3"},
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}),
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)))
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result, err := m.LoadMemoryVariables(context.Background(), map[string]any{})
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require.NoError(t, err)
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expected := map[string]any{"history": "Human: bar2\nAI: foo2\nHuman: bar3\nAI: foo3"}
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assert.Equal(t, expected, result)
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}
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