(GH-101) - Add acceptance tests for explain command

Added test's covering the following use cases:
- with no args
- output set to json
- filter by tag
- filter by category
- displaying a single topic

acceptance/explain/explain_test.go

@@ -0,0 +1,100 @@
+package explain_test
+
+import (
+	"testing"
+
+	"github.com/puppetlabs/pdkgo/acceptance/testutils"
+	"github.com/stretchr/testify/assert"
+)
+
+const APP = "prm"
+
+func Test_Explain_With_No_Args(t *testing.T) {
+	testutils.SkipAcceptanceTest(t)
+
+	// Setup
+	testutils.SetAppName(APP)
+
+	// Exec
+	stdout, stderr, exitCode := testutils.RunAppCommand("explain", "")
+
+	// Assert
+	assert.Contains(t, stdout, "README")
+	assert.Empty(t, stderr)
+	assert.Equal(t, 0, exitCode)
+}
+
+func Test_Explain_With_List_Set(t *testing.T) {
+	testutils.SkipAcceptanceTest(t)
+
+	// Setup
+	testutils.SetAppName(APP)
+
+	// Exec
+	stdout, stderr, exitCode := testutils.RunAppCommand("explain --list", "")
+
+	// Assert
+	assert.Contains(t, stdout, "README")
+	assert.Empty(t, stderr)
+	assert.Equal(t, 0, exitCode)
+}
+
+func Test_Explain_With_Format_Json(t *testing.T) {
+	testutils.SkipAcceptanceTest(t)
+
+	// Setup
+	testutils.SetAppName(APP)
+
+	// Exec
+	stdout, stderr, exitCode := testutils.RunAppCommand("explain --format json", "")
+
+	// Assert
+	assert.Contains(t, stdout, "\"Title\":{\"Short\":\"README\",\"Long\":\"Readme\"")
+	assert.Empty(t, stderr)
+	assert.Equal(t, 0, exitCode)
+}
+
+func Test_Explain_With_Tag_Filter(t *testing.T) {
+	testutils.SkipAcceptanceTest(t)
+
+	// Setup
+	testutils.SetAppName(APP)
+
+	// Exec
+	stdout, stderr, exitCode := testutils.RunAppCommand("explain --tag meta", "")
+
+	// Assert
+	assert.Contains(t, stdout, "README")
+	assert.Empty(t, stderr)
+	assert.Equal(t, 0, exitCode)
+}
+
+func Test_Explain_With_Cateogry_Filter(t *testing.T) {
+	testutils.SkipAcceptanceTest(t)
+
+	// Setup
+	testutils.SetAppName(APP)
+
+	// Exec
+	stdout, stderr, exitCode := testutils.RunAppCommand("explain --category concept", "")
+
+	// Assert
+	assert.Contains(t, stdout, "README")
+	assert.Empty(t, stderr)
+	assert.Equal(t, 0, exitCode)
+}
+
+func Test_Explain_With_Single_Target(t *testing.T) {
+	testutils.SkipAcceptanceTest(t)
+
+	// Setup
+	testutils.SetAppName(APP)
+
+	// Exec
+	stdout, stderr, exitCode := testutils.RunAppCommand("explain README", "")
+
+	// Assert
+	assert.Contains(t, stdout, "Puppet Runtime Manager")
+	assert.Empty(t, stderr)
+	assert.Equal(t, 0, exitCode)
+}