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package engine
import (
"context"
"testing"
)
func TestMockBrokerClient_BasicFunctionality(t *testing.T) {
mockBroker := NewMockBrokerClient()
// Test ListNamespaces
namespaces, err := mockBroker.ListNamespaces(context.Background())
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
if len(namespaces) != 2 {
t.Errorf("Expected 2 namespaces, got %d", len(namespaces))
}
// Test ListTopics
topics, err := mockBroker.ListTopics(context.Background(), "default")
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
if len(topics) != 2 {
t.Errorf("Expected 2 topics in default namespace, got %d", len(topics))
}
// Test GetTopicSchema
schema, keyColumns, _, err := mockBroker.GetTopicSchema(context.Background(), "default", "user_events")
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
if len(schema.Fields) != 3 {
t.Errorf("Expected 3 fields in user_events schema, got %d", len(schema.Fields))
}
if len(keyColumns) == 0 {
t.Error("Expected at least one key column")
}
}
func TestMockBrokerClient_FailureScenarios(t *testing.T) {
mockBroker := NewMockBrokerClient()
// Configure mock to fail
mockBroker.SetFailure(true, "simulated broker failure")
// Test that operations fail as expected
_, err := mockBroker.ListNamespaces(context.Background())
if err == nil {
t.Error("Expected error when mock is configured to fail")
}
_, err = mockBroker.ListTopics(context.Background(), "default")
if err == nil {
t.Error("Expected error when mock is configured to fail")
}
_, _, _, err = mockBroker.GetTopicSchema(context.Background(), "default", "user_events")
if err == nil {
t.Error("Expected error when mock is configured to fail")
}
// Test that filer client also fails
_, err = mockBroker.GetFilerClient()
if err == nil {
t.Error("Expected error when mock is configured to fail")
}
// Reset mock to working state
mockBroker.SetFailure(false, "")
// Test that operations work again
namespaces, err := mockBroker.ListNamespaces(context.Background())
if err != nil {
t.Errorf("Expected no error after resetting mock, got %v", err)
}
if len(namespaces) == 0 {
t.Error("Expected namespaces after resetting mock")
}
}
func TestMockBrokerClient_TopicManagement(t *testing.T) {
mockBroker := NewMockBrokerClient()
// Test ConfigureTopic (add a new topic)
err := mockBroker.ConfigureTopic(context.Background(), "test", "new-topic", 1, nil, []string{})
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
// Verify the topic was added
topics, err := mockBroker.ListTopics(context.Background(), "test")
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
foundNewTopic := false
for _, topic := range topics {
if topic == "new-topic" {
foundNewTopic = true
break
}
}
if !foundNewTopic {
t.Error("Expected new-topic to be in the topics list")
}
// Test DeleteTopic
err = mockBroker.DeleteTopic(context.Background(), "test", "new-topic")
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
// Verify the topic was removed
topics, err = mockBroker.ListTopics(context.Background(), "test")
if err != nil {
t.Fatalf("Expected no error, got %v", err)
}
for _, topic := range topics {
if topic == "new-topic" {
t.Error("Expected new-topic to be removed from topics list")
}
}
}
func TestSQLEngineWithMockBrokerClient_ErrorHandling(t *testing.T) {
// Create an engine with a failing mock broker
mockBroker := NewMockBrokerClient()
mockBroker.SetFailure(true, "mock broker unavailable")
catalog := &SchemaCatalog{
databases: make(map[string]*DatabaseInfo),
currentDatabase: "default",
brokerClient: mockBroker,
}
engine := &SQLEngine{catalog: catalog}
// Test that queries fail gracefully with proper error messages
result, err := engine.ExecuteSQL(context.Background(), "SELECT * FROM nonexistent_topic")
// ExecuteSQL itself should not return an error, but the result should contain an error
if err != nil {
// If ExecuteSQL returns an error, that's also acceptable for this test
t.Logf("ExecuteSQL returned error (acceptable): %v", err)
return
}
// Should have an error in the result when broker is unavailable
if result.Error == nil {
t.Error("Expected error in query result when broker is unavailable")
} else {
t.Logf("Got expected error in result: %v", result.Error)
}
}
|
