[gjs/esm/dynamic-imports: 189/192] WIP - dynamic imports tests

[Evan Welsh <ewlsh src gnome org>]

commit c9750bf0f706efb1795736a5420cb23feac697cd
Author: Philip Chimento <philip chimento gmail com>
Date:   Mon Dec 14 17:39:54 2020 -0800

    WIP - dynamic imports tests

 installed-tests/js/jsunit.gresources.xml |  1 +
 installed-tests/js/modules/say.js        |  7 +++++++
 installed-tests/js/testESModules.js      | 21 +++++++++++++++++++++
 3 files changed, 29 insertions(+)
---
diff --git a/installed-tests/js/jsunit.gresources.xml b/installed-tests/js/jsunit.gresources.xml
index 3e100b1b..624ac738 100644
--- a/installed-tests/js/jsunit.gresources.xml
+++ b/installed-tests/js/jsunit.gresources.xml
@@ -21,6 +21,7 @@
     <file>modules/mutualImport/a.js</file>
     <file>modules/mutualImport/b.js</file>
     <file>modules/overrides/GIMarshallingTests.js</file>
+    <file>modules/say.js</file>
     <file>modules/subA/subB/__init__.js</file>
     <file>modules/subA/subB/baz.js</file>
     <file>modules/subA/subB/foobar.js</file>
diff --git a/installed-tests/js/modules/say.js b/installed-tests/js/modules/say.js
new file mode 100644
index 00000000..4729dff5
--- /dev/null
+++ b/installed-tests/js/modules/say.js
@@ -0,0 +1,7 @@
+export function say(str) {
+  return `<( ${str} )`;
+}
+
+export default function() {
+  return 'default export';
+}
diff --git a/installed-tests/js/testESModules.js b/installed-tests/js/testESModules.js
index a2997f28..2be3a149 100644
--- a/installed-tests/js/testESModules.js
+++ b/installed-tests/js/testESModules.js
@@ -86,3 +86,24 @@ describe('Builtin ES modules', function () {
         expect(exit).toBe(system.exit);
     });
 });
+
+describe('Dynamic imports', function () {
+    let module;
+    beforeEach(function (done) {
+        import('resource:///org/gjs/jsunit/modules/say.js')
+            .then(m => (module = m))
+            .catch(err => {
+                logError(err);
+                fail();
+            })
+            .finally(done);
+    });
+
+    it('default import', function () {
+        expect(module.default()).toEqual('default export');
+    });
+
+    it('named import', function () {
+        expect(module.say('hi')).toEqual('<( hi )');
+    });
+});