用于生成import节点,首先会检查是否已经存在这个路径,如果有则直接合并

反之生成一个新的import节点并插入在最后一行import后面

// 已经存在这个路径的导入用例
test_inline!(
    Default::default(),
    |_| visit_mut_pass(TransformVisitor::with_confg(PluginConfig {
        default_import: "a".to_string(),
        name_import: vec![
            "throttle".to_string(),
            "debounce".to_string(),
            "deepClone".to_string()
        ],
        path: "lodash".to_string()
    })),
    // Test case name
    merge_exist_default_with_name_import,
    // Input code (with existing imports)
    r#"
     import  a,{deepClone,isEqual}  from 'lodash';
     import b ,{ isEqual } from 'lodash';
     "#,
    // Expected output (with new import added)
    r#"
     import a,{deepClone,isEqual,throttle,debounce } from 'lodash';
     "#
);
// 存在as重命名的导入
test_inline!(
    Default::default(),
    |_| visit_mut_pass(TransformVisitor::with_confg(PluginConfig {
        default_import: "a".to_string(),
        name_import: vec![
            "throttle".to_string(),
            "debounce".to_string(),
            "deepClone".to_string()
        ],
        path: "lodash".to_string()
    })),
    // Test case name
    merge_exist_default_with_as_import,
    // Input code (with existing imports)
    r#"
     import  a,{deepClone,isEqual}  from 'lodash';
     import b ,{ isEqual as iE} from 'lodash';
     "#,
    // Expected output (with new import added)
    r#"
     import a,{deepClone,isEqual,isEqual as iE, throttle, debounce } from 'lodash';
     "#
);
// 存在as重命名的导入并且插件配置传入了这个具名导入
test_inline!(
    Default::default(),
    |_| visit_mut_pass(TransformVisitor::with_confg(PluginConfig {
        default_import: "a".to_string(),
        name_import: vec![
            "throttle".to_string(),
            "debounce".to_string(),
            "deepClone".to_string()
        ],
        path: "lodash".to_string()
    })),
    // Test case name
    merge_exist_with_as_import_plugin,
    // Input code (with existing imports)
    r#"
     import  a,{deepClone as dC,isEqual}  from 'lodash';
     import b ,{ isEqual as iE} from 'lodash';
     "#,
    // Expected output (with new import added)
    r#"
     import a,{deepClone as dC,isEqual,isEqual as iE, throttle, debounce } from 'lodash';
     "#
);

test_inline!(
    Default::default(),
    |_| visit_mut_pass(TransformVisitor::with_confg(PluginConfig {
        default_import: "a".to_string(),
        name_import: vec![],
        path: "lodash".to_string()
    })),
    // Test case name
    no_default_import,
    // Input code (with existing imports)
    r#"
     import { isEqual } from 'lodash';
     "#,
    // Expected output (with new import added)
    r#"
     import a,{isEqual } from 'lodash';
     "#
);
//之前不存在已经导入的
//默认导入
test_inline!(
    Default::default(),
    |_| visit_mut_pass(TransformVisitor::with_confg(PluginConfig {
        default_import: "a".to_string(),
        name_import: vec![],
        path: "lodash".to_string()
    })),
    // Test case name
    add_default_import,
    // Input code (with existing imports)
    r#"
         import { ElMessage } from 'element-plus'
import { useThrottleFn } from '@vueuse/core'
import useUser from '@/hooks/useUser'
import { useCart } from '@/store/useCart'
const router = useRouter()
const search = ref('')
     "#,
    // Expected output (with new import added)
    r#"
         import { ElMessage } from 'element-plus'
import { useThrottleFn } from '@vueuse/core'
import useUser from '@/hooks/useUser'
import { useCart } from '@/store/useCart'
import a from 'lodash';
const router = useRouter()
const search = ref('')
     "#
);
//具名导入
test_inline!(
    Default::default(),
    |_| visit_mut_pass(TransformVisitor::with_confg(PluginConfig {
        default_import: "a".to_string(),
        name_import: vec![
            "throttle".to_string(),
            "debounce".to_string()
        ],
        path: "lodash".to_string()
    })),
    // Test case name
    add_all_import,
    // Input code (with existing imports)
    r#"
         import { ElMessage } from 'element-plus'
import { useThrottleFn } from '@vueuse/core'
import useUser from '@/hooks/useUser'
import { useCart } from '@/store/useCart'
const router = useRouter()
const search = ref('')
     "#,
    // Expected output (with new import added)
    r#"
         import { ElMessage } from 'element-plus'
import { useThrottleFn } from '@vueuse/core'
import useUser from '@/hooks/useUser'
import { useCart } from '@/store/useCart'
import a,{throttle,debounce} from 'lodash';
const router = useRouter()
const search = ref('')
     "#
);