package hover_test
import (
"context"
"path/filepath"
"strings"
"testing"
"time"
"github.com/isaacphi/mcp-language-server/integrationtests/tests/common"
"github.com/isaacphi/mcp-language-server/integrationtests/tests/python/internal"
"github.com/isaacphi/mcp-language-server/internal/tools"
)
// TestHover tests hover functionality with the Python language server
func TestHover(t *testing.T) {
tests := []struct {
name string
file string
line int
column int
expectedText string // Text that should be in the hover result
unexpectedText string // Text that should NOT be in the hover result (optional)
snapshotName string
}{
// Tests using main.py file
{
name: "Function",
file: "main.py",
line: 6,
column: 5,
expectedText: "test_function",
snapshotName: "function",
},
{
name: "Class",
file: "main.py",
line: 18,
column: 7,
expectedText: "TestClass",
snapshotName: "class",
},
{
name: "ClassMethod",
file: "main.py",
line: 31,
column: 10,
expectedText: "test_method",
snapshotName: "class-method",
},
{
name: "StaticMethod",
file: "main.py",
line: 44,
column: 15,
expectedText: "static_method",
snapshotName: "static-method",
},
{
name: "Constant",
file: "main.py",
line: 79,
column: 5,
expectedText: "TEST_CONSTANT",
snapshotName: "constant",
},
{
name: "Variable",
file: "main.py",
line: 83,
column: 5,
expectedText: "test_variable",
snapshotName: "variable",
},
{
name: "DerivedClass",
file: "main.py",
line: 70,
column: 7,
expectedText: "DerivedClass",
snapshotName: "derived-class",
},
// Test for a location without hover info (empty space)
{
name: "NoHoverInfo",
file: "main.py",
line: 2, // Blank line
column: 1, // First column
unexpectedText: "class",
snapshotName: "no-hover-info",
},
// Test for a location outside the file
{
name: "OutsideFile",
file: "main.py",
line: 1000, // Line number beyond file length
column: 1,
unexpectedText: "def",
snapshotName: "outside-file",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// Get a test suite
suite := internal.GetTestSuite(t)
ctx, cancel := context.WithTimeout(suite.Context, 5*time.Second)
defer cancel()
filePath := filepath.Join(suite.WorkspaceDir, tt.file)
err := suite.Client.OpenFile(ctx, filePath)
if err != nil {
t.Fatalf("Failed to open %s: %v", tt.file, err)
}
// Get hover info
result, err := tools.GetHoverInfo(ctx, suite.Client, filePath, tt.line, tt.column)
if err != nil {
// For the "OutsideFile" test, we expect an error
if tt.name == "OutsideFile" {
if tt.expectedText != "" && !strings.Contains(result, tt.expectedText) {
t.Errorf("Expected hover info to contain %q but got: %s", tt.expectedText, result)
}
// Verify unexpected content is absent
if tt.unexpectedText != "" && strings.Contains(result, tt.unexpectedText) {
t.Errorf("Expected hover info NOT to contain %q but it was found: %s", tt.unexpectedText, result)
}
common.SnapshotTest(t, "python", "hover", tt.snapshotName, err.Error())
return
}
t.Fatalf("GetHoverInfo failed: %v", err)
}
// Verify expected content
if tt.expectedText != "" && !strings.Contains(result, tt.expectedText) {
t.Errorf("Expected hover info to contain %q but got: %s", tt.expectedText, result)
}
// Verify unexpected content is absent
if tt.unexpectedText != "" && strings.Contains(result, tt.unexpectedText) {
t.Errorf("Expected hover info NOT to contain %q but it was found: %s", tt.unexpectedText, result)
}
common.SnapshotTest(t, "python", "hover", tt.snapshotName, result)
})
}
}
