test(password-input): add unit tests

tests/PasswordInput/PasswordInput.test.svelte

@@ -0,0 +1,66 @@
+<script lang="ts">
+  import { PasswordInput } from "carbon-components-svelte";
+
+  export let size: "sm" | "xl" | undefined = undefined;
+  export let value: string | number = "";
+  export let type: "text" | "password" = "password";
+  export let placeholder = "";
+  export let hidePasswordLabel = "Hide password";
+  export let showPasswordLabel = "Show password";
+  export let tooltipAlignment: "start" | "center" | "end" = "center";
+  export let tooltipPosition: "top" | "right" | "bottom" | "left" = "bottom";
+  export let light = false;
+  export let disabled = false;
+  export let helperText = "";
+  export let labelText = "";
+  export let hideLabel = false;
+  export let invalid = false;
+  export let invalidText = "";
+  export let warn = false;
+  export let warnText = "";
+  export let inline = false;
+  export let id = "test-password-input";
+  export let name = "";
+  export let ref: HTMLInputElement | null = null;
+</script>
+
+<PasswordInput
+  {...$$restProps}
+  bind:ref
+  {size}
+  bind:value
+  bind:type
+  {placeholder}
+  {hidePasswordLabel}
+  {showPasswordLabel}
+  {tooltipAlignment}
+  {tooltipPosition}
+  {light}
+  {disabled}
+  {helperText}
+  {labelText}
+  {hideLabel}
+  {invalid}
+  {invalidText}
+  {warn}
+  {warnText}
+  {inline}
+  {id}
+  {name}
+  on:click
+  on:mouseover
+  on:mouseenter
+  on:mouseleave
+  on:change
+  on:keydown
+  on:keyup
+  on:focus={() => {
+    console.log("focus");
+  }}
+  on:blur={() => {
+    console.log("blur");
+  }}
+  on:paste
+/>
+
+<div data-testid="value">{value}</div>