diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution1.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution1.tsx
new file mode 100644
index 00000000000..6d5225df2d9
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution1.tsx
@@ -0,0 +1,18 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+class Poisoned extends React.Component<{}, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+const obj: Object = {};
+
+// OK
+let p = <Poisoned {...obj} />;
+let y = <Poisoned />;
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution10.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution10.tsx
new file mode 100644
index 00000000000..6410f075ae9
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution10.tsx
@@ -0,0 +1,27 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+interface OptionProp {
+    x?: 2
+}
+
+class Opt extends React.Component<OptionProp, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+const obj: OptionProp = {};
+const obj1: OptionProp = {
+    x: 2
+}
+
+// Error
+let y = <Opt {...obj} x={3}/>;
+let y1 = <Opt {...obj1} x="Hi"/>;
+let y2 = <Opt {...obj1} x={3}/>;
+let y3 = <Opt x />;
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution11.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution11.tsx
new file mode 100644
index 00000000000..c8008623441
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution11.tsx
@@ -0,0 +1,36 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+const obj = {};
+const obj1: { x: 2 } = {
+    x: 2
+}
+const obj3: {y: true, overwrite: string } = {
+    y: true,
+    overwrite: "hi"
+}
+
+interface Prop {
+    x: 2
+    y: true
+    overwrite: string
+}
+
+class OverWriteAttr extends React.Component<Prop, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+let anyobj: any;
+// OK
+let x = <OverWriteAttr {...obj} y overwrite="hi" {...obj1} />
+let x1 = <OverWriteAttr {...obj1} {...obj3} />
+let x2 = <OverWriteAttr x={3} overwrite="hi" {...obj1} {...{y: true}} />
+let x3 = <OverWriteAttr overwrite="hi" {...obj1} x={3} {...{y: true, x: 2, overwrite:"world"}} />
+let x4 = <OverWriteAttr {...{x: 2}} {...{overwrite: "world"}} {...{y: true}} />
+let x5 = <OverWriteAttr {...anyobj} />
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution12.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution12.tsx
new file mode 100644
index 00000000000..b5150bd27ff
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution12.tsx
@@ -0,0 +1,34 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+const obj = {};
+const obj1: {x: 2} = {
+    x: 2
+}
+const obj3: {y: false, overwrite: string} = {
+    y: false,
+    overwrite: "hi"
+}
+
+interface Prop {
+    x: 2
+    y: false
+    overwrite: string
+}
+
+class OverWriteAttr extends React.Component<Prop, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+let anyobj: any;
+
+// Error
+let x = <OverWriteAttr {...obj} y overwrite="hi" {...obj1} />
+let x1 = <OverWriteAttr overwrite="hi" {...obj1} x={3} {...{y: true}} />
+let x2 = <OverWriteAttr {...anyobj} x={3} />
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution2.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution2.tsx
new file mode 100644
index 00000000000..1d647226ade
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution2.tsx
@@ -0,0 +1,24 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+interface PoisonedProp {
+    x: string;
+    y: "2";
+}
+
+class Poisoned extends React.Component<PoisonedProp, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+const obj = {};
+
+// Error
+let p = <Poisoned {...obj} />;
+let y = <Poisoned />;
+let z = <Poisoned x y/>;
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution3.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution3.tsx
new file mode 100644
index 00000000000..8bff2abbd2c
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution3.tsx
@@ -0,0 +1,26 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+interface PoisonedProp {
+    x: string;
+    y: number;
+}
+
+class Poisoned extends React.Component<PoisonedProp, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+const obj = {
+    x: "hello world",
+    y: 2
+};
+
+// OK
+let p = <Poisoned {...obj} />;
+let y = <Poisoned x="hi" y={2} />;
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution4.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution4.tsx
new file mode 100644
index 00000000000..803853aacdb
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution4.tsx
@@ -0,0 +1,25 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+interface PoisonedProp {
+    x: string;
+    y: 2;
+}
+
+class Poisoned extends React.Component<PoisonedProp, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+const obj: PoisonedProp = {
+    x: "hello world",
+    y: 2
+};
+
+// OK
+let p = <Poisoned {...obj} />;
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution5.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution5.tsx
new file mode 100644
index 00000000000..76ff79149f3
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution5.tsx
@@ -0,0 +1,25 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+interface PoisonedProp {
+    x: string;
+    y: 2;
+}
+
+class Poisoned extends React.Component<PoisonedProp, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+let obj = {
+    x: "hello world",
+    y: 2
+};
+
+// Error as "obj" has type { x: string; y: number }
+let p = <Poisoned {...obj} />;
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution6.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution6.tsx
new file mode 100644
index 00000000000..35a190e10cc
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution6.tsx
@@ -0,0 +1,22 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+type TextProps = { editable: false }
+               | { editable: true, onEdit: (newText: string) => void };
+
+class TextComponent extends React.Component<TextProps, {}> {
+    render() {
+        return <span>Some Text..</span>;
+    }
+}
+
+// Error
+let x = <TextComponent editable={true} />
+
+const textProps: TextProps = {
+    editable: false
+};
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution7.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution7.tsx
new file mode 100644
index 00000000000..55e3222c022
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution7.tsx
@@ -0,0 +1,29 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+type TextProps = { editable: false }
+               | { editable: true, onEdit: (newText: string) => void };
+
+class TextComponent extends React.Component<TextProps, {}> {
+    render() {
+        return <span>Some Text..</span>;
+    }
+}
+
+// OK
+const textPropsFalse: TextProps = {
+    editable: false
+};
+
+let y1 = <TextComponent {...textPropsFalse} />
+
+const textPropsTrue: TextProps = {
+    editable: true,
+    onEdit: () => {}
+};
+
+let y2 = <TextComponent {...textPropsTrue} />
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution8.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution8.tsx
new file mode 100644
index 00000000000..937678605d6
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution8.tsx
@@ -0,0 +1,31 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+const obj = {};
+const obj1 = {
+    x: 2
+}
+const obj3 = {
+    y: true,
+    overwrite: "hi"
+}
+
+interface Prop {
+    x: number
+    y: boolean
+    overwrite: string
+}
+
+class OverWriteAttr extends React.Component<Prop, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+// OK
+let x = <OverWriteAttr {...obj} y overwrite="hi" {...obj1} />
+let x1 = <OverWriteAttr {...obj1} {...obj3}  />
\ No newline at end of file
diff --git a/tests/cases/conformance/jsx/tsxSpreadAttributesResolution9.tsx b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution9.tsx
new file mode 100644
index 00000000000..9f2a63a56b6
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxSpreadAttributesResolution9.tsx
@@ -0,0 +1,29 @@
+// @filename: file.tsx
+// @jsx: preserve
+// @noLib: true
+// @libFiles: react.d.ts,lib.d.ts
+
+import React = require('react');
+
+interface OptionProp {
+    x?: 2
+    y?: boolean
+}
+
+class Opt extends React.Component<OptionProp, {}> {
+    render() {
+        return <div>Hello</div>;
+    }
+}
+
+const obj: OptionProp = {};
+const obj1: OptionProp = {
+    x: 2
+}
+
+// OK
+let p = <Opt />;
+let y = <Opt {...obj} />;
+let y1 = <Opt {...obj1} />;
+let y2 = <Opt {...obj1} y/>;
+let y3 = <Opt x={2} />;
\ No newline at end of file