From 10dcc2c34b68f68e4ed655e755c18204007bdf99 Mon Sep 17 00:00:00 2001
From: Steve Bennett <stevage@gmail.com>
Date: Thu, 6 Feb 2020 10:12:31 -0800
Subject: [PATCH] fix: Return array when given single feature with null
 geometry. (#27)

Fixes #26.
---
 index.js                                  |   2 +-
 tap-snapshots/test-flatten.js-TAP.test.js | 238 ++++++++++++++++++++++
 2 files changed, 239 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 09aaeb8..8834356 100644
--- a/index.js
+++ b/index.js
@@ -6,7 +6,7 @@ export default function flatten(gj) {
       }, []);
       return gj;
     case "Feature":
-      if (!gj.geometry) return gj;
+      if (!gj.geometry) return [gj];
       return flatten(gj.geometry).map(function(geom) {
         var data = {
           type: "Feature",
diff --git a/tap-snapshots/test-flatten.js-TAP.test.js b/tap-snapshots/test-flatten.js-TAP.test.js
index 5b3ff4e..664c053 100644
--- a/tap-snapshots/test-flatten.js-TAP.test.js
+++ b/tap-snapshots/test-flatten.js-TAP.test.js
@@ -5,6 +5,81 @@
  * Make sure to inspect the output below.  Do not ignore changes!
  */
 'use strict'
+exports[`test/flatten.js TAP flatten multigeometry-single.input.geojson > multigeometry-single.input.geojson 1`] = `
+Array [
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        -122.4425587930444,
+        37.80666418607323,
+        0,
+      ],
+      "type": "Point",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        -122.4428379594768,
+        37.80663578323093,
+        0,
+      ],
+      "type": "Point",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        Array [
+          -122.4425587930444,
+          37.80666418607323,
+          0,
+        ],
+        Array [
+          -122.4428379594768,
+          37.80663578323093,
+          0,
+        ],
+      ],
+      "type": "LineString",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        Array [
+          -122.4425509770566,
+          37.80662588061205,
+          0,
+        ],
+        Array [
+          -122.4428340530617,
+          37.8065999493009,
+          0,
+        ],
+      ],
+      "type": "LineString",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+]
+`
+
 exports[`test/flatten.js TAP flatten multigeometry.input.geojson > multigeometry.input.geojson 1`] = `
 Object {
   "features": Array [
@@ -83,6 +158,49 @@ Object {
 }
 `
 
+exports[`test/flatten.js TAP flatten multilinestring-single.input.geojson > multilinestring-single.input.geojson 1`] = `
+Array [
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        Array [
+          0,
+          0,
+        ],
+        Array [
+          1,
+          1,
+        ],
+      ],
+      "type": "LineString",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        Array [
+          2,
+          2,
+        ],
+        Array [
+          3,
+          3,
+        ],
+      ],
+      "type": "LineString",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+]
+`
+
 exports[`test/flatten.js TAP flatten multilinestring.input.geojson > multilinestring.input.geojson 1`] = `
 Object {
   "features": Array [
@@ -129,6 +247,37 @@ Object {
 }
 `
 
+exports[`test/flatten.js TAP flatten multipoint-single.input.geojson > multipoint-single.input.geojson 1`] = `
+Array [
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        0,
+        0,
+      ],
+      "type": "Point",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        1,
+        1,
+      ],
+      "type": "Point",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+]
+`
+
 exports[`test/flatten.js TAP flatten multipoint.input.geojson > multipoint.input.geojson 1`] = `
 Object {
   "features": Array [
@@ -163,6 +312,65 @@ Object {
 }
 `
 
+exports[`test/flatten.js TAP flatten multipolygon-single.input.geojson > multipolygon-single.input.geojson 1`] = `
+Array [
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        Array [
+          0,
+          0,
+        ],
+        Array [
+          1,
+          1,
+        ],
+        Array [
+          4,
+          2,
+        ],
+        Array [
+          0,
+          0,
+        ],
+      ],
+      "type": "Polygon",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+  Object {
+    "geometry": Object {
+      "coordinates": Array [
+        Array [
+          0,
+          0,
+        ],
+        Array [
+          5,
+          5,
+        ],
+        Array [
+          4,
+          2,
+        ],
+        Array [
+          0,
+          0,
+        ],
+      ],
+      "type": "Polygon",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+]
+`
+
 exports[`test/flatten.js TAP flatten multipolygon.input.geojson > multipolygon.input.geojson 1`] = `
 Object {
   "features": Array [
@@ -225,6 +433,18 @@ Object {
 }
 `
 
+exports[`test/flatten.js TAP flatten nullgeometry-single.input.geojson > nullgeometry-single.input.geojson 1`] = `
+Array [
+  Object {
+    "geometry": null,
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+]
+`
+
 exports[`test/flatten.js TAP flatten nullgeometry.input.geojson > nullgeometry.input.geojson 1`] = `
 Object {
   "features": Array [
@@ -240,6 +460,24 @@ Object {
 }
 `
 
+exports[`test/flatten.js TAP flatten point-single.input.geojson > point-single.input.geojson 1`] = `
+Array [
+  Object {
+    "geometry": Object {
+      "geometries": Array [
+        0,
+        0,
+      ],
+      "type": "Point",
+    },
+    "properties": Object {
+      "name": "SF Marina Harbor Master",
+    },
+    "type": "Feature",
+  },
+]
+`
+
 exports[`test/flatten.js TAP flatten point.input.geojson > point.input.geojson 1`] = `
 Object {
   "features": Array [