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module test.operations.lessThan; import fluentasserts.core.expect; import fluent.asserts; import trial.discovery.spec; import std.string; import std.conv; import std.meta; import std.datetime; alias s = Spec!({ alias NumericTypes = AliasSeq!(byte, ubyte, short, ushort, int, uint, long, ulong, float, double, real); static foreach(Type; NumericTypes) { describe("using " ~ Type.stringof ~ " values", { Type smallValue; Type largeValue; before({ smallValue = cast(Type) 40; largeValue = cast(Type) 50; }); it("should be able to compare two values", { expect(smallValue).to.be.lessThan(largeValue); expect(smallValue).to.be.below(largeValue); }); it("should be able to compare two values using negation", { expect(largeValue).not.to.be.lessThan(smallValue); expect(largeValue).not.to.be.below(smallValue); }); it("should throw a detailed error when the number is compared with itself", { auto msg = ({ expect(smallValue).to.be.lessThan(smallValue); }).should.throwException!TestException.msg; msg.split("\n")[0].should.equal(smallValue.to!string ~ " should be less than " ~ smallValue.to!string ~ ". " ~ smallValue.to!string ~ " is greater than or equal to " ~ smallValue.to!string ~ "."); msg.split("\n")[2].strip.should.equal("Expected:less than " ~ smallValue.to!string); msg.split("\n")[3].strip.should.equal("Actual:" ~ smallValue.to!string); }); it("should throw a detailed error when the negated comparison fails", { auto msg = ({ expect(smallValue).not.to.be.lessThan(largeValue); }).should.throwException!TestException.msg; msg.split("\n")[0].should.equal(smallValue.to!string ~ " should not be less than " ~ largeValue.to!string ~ ". " ~ smallValue.to!string ~ " is less than " ~ largeValue.to!string ~ "."); msg.split("\n")[2].strip.should.equal("Expected:greater than or equal to " ~ largeValue.to!string); msg.split("\n")[3].strip.should.equal("Actual:" ~ smallValue.to!string); }); }); } describe("using Duration values", { Duration smallValue; Duration largeValue; before({ smallValue = 40.seconds; largeValue = 41.seconds; }); it("should be able to compare two values", { expect(smallValue).to.be.lessThan(largeValue); expect(smallValue).to.be.below(largeValue); }); it("should be able to compare two values using negation", { expect(largeValue).not.to.be.lessThan(smallValue); expect(largeValue).not.to.be.below(smallValue); }); it("should throw a detailed error when the number is compared with itself", { auto msg = ({ expect(smallValue).to.be.lessThan(smallValue); }).should.throwException!TestException.msg; msg.split("\n")[0].should.equal(smallValue.to!string ~ " should be less than " ~ smallValue.to!string ~ ". " ~ smallValue.to!string ~ " is greater than or equal to " ~ smallValue.to!string ~ "."); msg.split("\n")[2].strip.should.equal("Expected:less than " ~ smallValue.to!string); msg.split("\n")[3].strip.should.equal("Actual:" ~ smallValue.to!string); }); it("should throw a detailed error when the negated comparison fails", { auto msg = ({ expect(smallValue).not.to.be.lessThan(largeValue); }).should.throwException!TestException.msg; msg.split("\n")[0].should.equal(smallValue.to!string ~ " should not be less than " ~ largeValue.to!string ~ ". " ~ smallValue.to!string ~ " is less than " ~ largeValue.to!string ~ "."); msg.split("\n")[2].strip.should.equal("Expected:greater than or equal to " ~ largeValue.to!string); msg.split("\n")[3].strip.should.equal("Actual:" ~ smallValue.to!string); }); }); });