Add eip712Hash unit tests

Unit tests have been added for `TypedDataUtils.eip712Hash`. These tests don't exhaustively check all possible inputs because there are a lot, and they're just passed along to `hashStruct`. So the `hashStruct` tests should catch any input-specific changes. Outside of behaviour internal to `hashStruct`, all of the behaviour should be covered by these tests. Any calls to `eip712Hash` in the older signature tests have been removed, as they are now redundant.
MetaMask · Aug 16, 2021 · b9402a2 · b9402a2
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diff --git a/src/__snapshots__/index.test.ts.snap b/src/__snapshots__/index.test.ts.snap
@@ -1,5 +1,25 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`TypedDataUtils.eip712Hash V3 should hash a minimal valid typed message 1`] = `"8d4a3f4082945b7879e2b55f181c31a77c8c0a464b70669458abbaaf99de4c38"`;
+
+exports[`TypedDataUtils.eip712Hash V3 should hash a typed message with a domain separator that uses all fields. 1`] = `"122d1c8ef94b76dad44dcb03fa772361e20855c63311a15d5afe02d1b38f6077"`;
+
+exports[`TypedDataUtils.eip712Hash V3 should hash a typed message with data 1`] = `"122d1c8ef94b76dad44dcb03fa772361e20855c63311a15d5afe02d1b38f6077"`;
+
+exports[`TypedDataUtils.eip712Hash V3 should hash a typed message with extra domain seperator fields 1`] = `"056edc00a07b3c2f8272146428402cc56419cea26ecdd743301b78053e5aba92"`;
+
+exports[`TypedDataUtils.eip712Hash V3 should hash a typed message with only custom domain seperator fields 1`] = `"8e713ff4064ccd8d5cf047d72d1417ba966ed0a4df27251e36aae310414a59b6"`;
+
+exports[`TypedDataUtils.eip712Hash V4 should hash a minimal valid typed message 1`] = `"8d4a3f4082945b7879e2b55f181c31a77c8c0a464b70669458abbaaf99de4c38"`;
+
+exports[`TypedDataUtils.eip712Hash V4 should hash a typed message with a domain separator that uses all fields. 1`] = `"122d1c8ef94b76dad44dcb03fa772361e20855c63311a15d5afe02d1b38f6077"`;
+
+exports[`TypedDataUtils.eip712Hash V4 should hash a typed message with data 1`] = `"122d1c8ef94b76dad44dcb03fa772361e20855c63311a15d5afe02d1b38f6077"`;
+
+exports[`TypedDataUtils.eip712Hash V4 should hash a typed message with extra domain seperator fields 1`] = `"056edc00a07b3c2f8272146428402cc56419cea26ecdd743301b78053e5aba92"`;
+
+exports[`TypedDataUtils.eip712Hash V4 should hash a typed message with only custom domain seperator fields 1`] = `"8e713ff4064ccd8d5cf047d72d1417ba966ed0a4df27251e36aae310414a59b6"`;
+
 exports[`TypedDataUtils.encodeData V3 example data type "address" should encode "0x0" (type "string") 1`] = `"c92db6bca97089c40b3f6512400e065cf2c27db90a50ce13440d951b13ada2990000000000000000000000000000000000000000000000000000000000000000"`;
 
 exports[`TypedDataUtils.encodeData V3 example data type "address" should encode "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB" (type "string") 1`] = `"c92db6bca97089c40b3f6512400e065cf2c27db90a50ce13440d951b13ada299000000000000000000000000bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"`;