toBe(Greater|Less)Than

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Compare values by their worth

This set of comparisons validate that a value is greater than, less than, or equal to another value. The following assertions are true.
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// 100 > 42
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expect(100).toBeGreaterThan(42);
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​
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// 0 < 100
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expect(0).toBeLessThan(100);
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​
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// 0 !> 100
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expect(0).not.toBeGreaterThan(100);
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​
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// 1.0 >= 1.0
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expect(1.0).toBeGreaterThanOrEqual(1.0);
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​
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// 1.0 !<= 0.0
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expect(1.0).not.toBeLessThanOrEqual(0.0);
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These assertions also work with reference types when the @operator(">" | "<" | ">=" | "<=") is used on a method in the class.
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class Vec3 {
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  constructor(public x: f64 = 0.0, public y: f64 = 0.0, public z: f64 = 0.0) {}
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​
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  @operator(">")
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  protected __gt(other: Vec3): bool {
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    return (
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      this.x * this.x + this.y * this.y + this.z * this.z >
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      other.x * other.x + other.y * other.y + other.z * other.z
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    );
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  }
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}
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​
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// valid assertion because `@operator` was overloaded
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expect(new Vec3(1, 2, 3)).toBeGreaterThan(new Vec3(0, 0, 0));
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These methods are safe to use portably with jest, provided they aren't used with reference types.

toThrow

🕵️‍♀️ toBeCloseTo

Last modified 2yr ago

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