Add test for issue #2138

Author: Moroine Bentefrit

tests/lib/rules/no-unused-prop-types.js

@@ -4619,6 +4619,29 @@ ruleTester.run('no-unused-prop-types', rule, {
       errors: [{
         message: '\'aProp\' PropType is defined but prop is never used'
       }]
+    }, {
+      // issue #2138
+      code: `
+        type UsedProps = {|
+          usedProp: number,
+        |};
+
+        type UnusedProps = {|
+          unusedProp: number,
+        |};
+
+        type Props = {| ...UsedProps, ...UnusedProps |};
+
+        function MyComponent({ usedProp, notOne }: Props) {
+          return <div>{usedProp}</div>;
+        }
+      `,
+      parser: parsers.BABEL_ESLINT,
+      errors: [{
+        message: "'unusedProp' PropType is defined but prop is never used",
+        line: 7,
+        column: 19
+      }]
     }, {
       code: `
         type Props = {

tests/lib/rules/prop-types.js

@@ -2354,6 +2354,30 @@ ruleTester.run('prop-types', rule, {
       `,
       parser: parsers.BABEL_ESLINT
     },
+    {
+      // issue #2138
+      code: `
+        type UsedProps = {|
+          usedProp: number,
+        |};
+
+        type UnusedProps = {|
+          unusedProp: number,
+        |};
+
+        type Props = {| ...UsedProps, ...UnusedProps |};
+
+        function MyComponent({ usedProp }: Props) {
+          return <div>{usedProp}</div>;
+        }
+      `,
+      parser: parsers.BABEL_ESLINT,
+      errors: [{
+        message: "'notOne' is missing in props validation",
+        line: 8,
+        column: 34
+      }]
+    },
     {
       // issue #1259
       code: `
@@ -4747,6 +4771,30 @@ ruleTester.run('prop-types', rule, {
         message: '\'initialValues\' is missing in props validation'
       }]
     },
+    {
+      // issue #2138
+      code: `
+        type UsedProps = {|
+          usedProp: number,
+        |};
+
+        type UnusedProps = {|
+          unusedProp: number,
+        |};
+
+        type Props = {| ...UsedProps, ...UnusedProps |};
+
+        function MyComponent({ usedProp, notOne }: Props) {
+          return <div>{usedProp}</div>;
+        }
+      `,
+      parser: parsers.BABEL_ESLINT,
+      errors: [{
+        message: "'notOne' is missing in props validation",
+        line: 8,
+        column: 34
+      }]
+    },
     {
       // issue #2298
       code: `