Merge pull request Azure#38 from wecha-ms/dev

Azs.Commerce.Admin: add example, remove docs, check quantity to pester

src/Azs.Commerce.Admin/examples/Get-AzsSubscriberUsage.md

@@ -0,0 +1,14 @@
+### Example 1: Get usage data aggregated by day
+```powershell
+Get-AzsSubscriberUsage -ReportedStartTime "2019-12-30T00:00:00Z" -ReportedEndTime "2019-12-31T00:00:00Z" -AggregationGranularity Daily
+```
+
+Get the usage data for the entire day of 30th Dec 2019 (in UTC) for all tenants under provider aggregated by the day. ReportedStartTime and ReportedEndTime must be rounded to days. If called as the service administrator, this effectively shows all usage data for every tenant. 
+
+### Example 2: Get usage data aggregated by the hour
+```powershell
+Get-AzsSubscriberUsage -ReportedStartTime "2019-12-30T00:00:00Z" -ReportedEndTime "2019-12-30T02:00:00Z" -AggregationGranularity Hourly
+```
+
+Get the usage data between  12am - 2am on 30th Dec 2019 (in UTC) aggregated by the hour. ReportedStartTime and ReportedEndTime must be rounded to hours. Likewise, if called as the service administrator, this effectively shows all usage data for every tenant.
+

src/Azs.Commerce.Admin/test/Common.ps1

@@ -16,9 +16,8 @@ function ValidateAzsSubscriberUsage {
     {
         $record.UsageStartTime                  | Should Not Be $null
         $record.UsageEndTime                    | Should Not Be $null
-        ## TODO: Current quantity is not picked up
         ## Pester v3 does not support BeGreaterOrEqual
-        #$record.Quantity -ge 0                  | Should Be $true
+        $record.Quantity -ge 0                  | Should Be $true
         $record.MeterId                         | Should Not Be $null
         $record.SubscriptionId                  | Should Not Be $null