fix(cmd): stats command works with an FSI directory

closes #1186

cmd/stats.go

@@ -1,8 +1,6 @@
 package cmd
 
 import (
- "fmt"
-
  "github.com/qri-io/ioes"
  "github.com/qri-io/qri/lib"
  "github.com/spf13/cobra"
@@ -53,10 +51,6 @@ func (o *StatsOptions) Complete(f Factory, args []string) (err error) {
  return
  }
 
- if len(args) < 1 {
- return fmt.Errorf("need a dataset reference, eg: me/dataset_name")
- }
-
  o.Refs, err = GetCurrentRefSelect(f, args, 1, nil)
  if err != nil {
  return err

cmd/stats_test.go

@@ -2,6 +2,8 @@ package cmd
 
 import (
  "testing"
+
+ "github.com/google/go-cmp/cmp"
 )
 
 func TestStatsComplete(t *testing.T) {
@@ -19,7 +21,7 @@ func TestStatsComplete(t *testing.T) {
  args []string
  err string
  }{
- {"no args", []string{}, "need a dataset reference, eg: me/dataset_name"},
+ {"no args", []string{}, "repo: empty dataset reference"},
  }
 
  for i, c := range badCases {
@@ -135,3 +137,27 @@ func TestStatsRun(t *testing.T) {
  }
  }
 }
+
+func TestStatsFSI(t *testing.T) {
+ run := NewFSITestRunner(t, "qri_test_stats_fsi")
+ defer run.Delete()
+
+ run.CreateAndChdirToWorkDir("stats_fsi")
+
+ // Init as a linked directory.
+ run.MustExec(t, "qri init --name move_dir --format csv")
+ // Save the new dataset.
+ run.MustExec(t, "qri save")
+
+ output := run.MustExecCombinedOutErr(t, "qri stats")
+
+ expect := `for linked dataset [test_peer/move_dir]
+
+[{"count":2,"maxLength":4,"minLength":3,"type":"string","unique":2},{"count":2,"maxLength":4,"minLength":3,"type":"string","unique":2},{"count":2,"histogram":{"bins":[3,3.4,3.8,4.2,4.6,5,5.4,5.800000000000001,6.2,6.6,7],"frequencies":[1,0,0,0,0,0,0,1,0,0]},"max":6,"mean":4.5,"median":4.5,"min":3,"type":"numeric"}]
+
+`
+
+ if diff := cmp.Diff(expect, output); diff != "" {
+ t.Errorf("output mismatch (-want +got):\n%s", diff)
+ }
+}