Add unit test cases for page container component

Signed-off-by: Suren Neware <sneware9@in.ibm.com>
Change-Id: Ia7895156d1a4551bd70f95cc0207bf72522fba0e
diff --git a/tests/unit/Global/__snapshots__/PageContainer.spec.js.snap b/tests/unit/Global/__snapshots__/PageContainer.spec.js.snap
new file mode 100644
index 0000000..308f745
--- /dev/null
+++ b/tests/unit/Global/__snapshots__/PageContainer.spec.js.snap
@@ -0,0 +1,9 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`PageContainer.vue should render correctly 1`] = `
+<template>
+  <main id="main-content" class="page-container">
+    <slot />
+  </main>
+</template>
+`;