Add tests for tabWiths option

tests/tabWith/__snapshots__/jsfmt.spec.js.snap

@@ -0,0 +1,105 @@
+exports[`test class.js 1`] = `
+"class A {
+  method() {
+    var x = 1;
+    while(typeof x == \"number\" || typeof x == \"string\") {
+        x = x + 1;
+        if (true) x = \"\";
+    }
+    var z:number = x;
+  }
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+class A {
+  method() {
+    var x = 1;
+    while (typeof x == \"number\" || typeof x == \"string\") {
+      x = x + 1;
+      if (true)
+        x = \"\";
+    }
+    var z: number = x;
+  }
+}
+"
+`;
+
+exports[`test class.js 2`] = `
+"class A {
+  method() {
+    var x = 1;
+    while(typeof x == \"number\" || typeof x == \"string\") {
+        x = x + 1;
+        if (true) x = \"\";
+    }
+    var z:number = x;
+  }
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+class A {
+    method() {
+        var x = 1;
+        while (typeof x == \"number\" || typeof x == \"string\") {
+            x = x + 1;
+            if (true)
+                x = \"\";
+        }
+        var z: number = x;
+    }
+}
+"
+`;
+
+exports[`test nested-functions.spec.js 1`] = `
+"const c = () => {};
+
+function a() {
+  return function b() {
+    return () => {
+      return function() {
+        return c;
+      }
+    }
+  }
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+const c = () => {};
+
+function a() {
+  return function b() {
+    return () => {
+      return function() {
+        return c;
+      };
+    };
+  };
+}
+"
+`;
+
+exports[`test nested-functions.spec.js 2`] = `
+"const c = () => {};
+
+function a() {
+  return function b() {
+    return () => {
+      return function() {
+        return c;
+      }
+    }
+  }
+}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+const c = () => {};
+
+function a() {
+    return function b() {
+        return () => {
+            return function() {
+                return c;
+            };
+        };
+    };
+}
+"
+`;

tests/tabWith/class.js

@@ -0,0 +1,10 @@
+class A {
+  method() {
+    var x = 1;
+    while(typeof x == "number" || typeof x == "string") {
+        x = x + 1;
+        if (true) x = "";
+    }
+    var z:number = x;
+  }
+}

tests/tabWith/jsfmt.spec.js

@@ -0,0 +1,3 @@
+run_spec(__dirname);
+
+run_spec(__dirname, { tabWidth: 4 });

tests/tabWith/nested-functions.spec.js

@@ -0,0 +1,11 @@
+const c = () => {};
+
+function a() {
+  return function b() {
+    return () => {
+      return function() {
+        return c;
+      }
+    }
+  }
+}